Input Modules | McMaster-Carr

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99 Products

IO-Link I/O Modules

Components Sold Separately

Create a system of sensors and actuators that you can remotely update, view measurements from, and receive error messages in real time. IO-Link systems minimize downtime by locating issues such as cut cables or dirty sensors quickly. They send only digital signals to your PLC, regardless of whether your sensors and actuators send digital or analog signals. Because these systems send digital signals, they’re more reliable and less prone to data error and signal loss than analog signals. It also means you don't have to use expensive shielded cables since they resist EMI.

When retrofitting an existing system, you'll need to make sure your PLC can incorporate IO-Link. Check with your PLC manufacturer—most have hardware that allows you to upgrade your PLC to run IO-Link.

Note: Sockets may have extra holes on their face that are not used.

Expansion Modules

Expansion modules increase the number of inputs and outputs in your IO-Link system, so you can add more sensors and actuators to your network. Connect multiple devices to each expansion module using M12 connectors, without needing to wire your devices inside a control cabinet. They transmit signals from multiple devices with a single cord. Expansion modules are optional, but when used, they must connect to a controller. Mount them on your equipment to save space in your control cabinet.

IP65 Enclosure Rating—IP65 rated components can be rinsed.

IP67 Enclosure Rating—IP67 rated components can be temporarily submerged in water.

IP69K Enclosure Rating—IP69K rated components hold up to high-pressure and high-temperature washdowns.

Enclosure Rating—IP rated components block out dust and withstand some water, so they do not require an enclosure. Ports that are unused must be capped to maintain their rating.

					Input				Output
	Expansion Module Type	Communication Protocol	No. of Device Ports	Total No. of M12 Connections	Type	Digital Signal	Voltage, V DC	No. of	Type	Digital Signal	Current, amp	No. of	Operating Voltage, V DC	Certification		Each
Surface Mount







				IP65, IP67

				Input	IO-Link	6	7	Digital	PNP	16 to 30	12	—	—	—	—	18 to 30	UL Listed, C-UL Listed, CE Marked	7603N11	0000000


				Input	IO-Link	10	11	Digital	PNP	16 to 30	20	—	—	—	—	18 to 30	UL Listed, C-UL Listed, CE Marked	7603N12	000000
				Input, Output	IO-Link	8	10	Digital	PNP	18 to 30	16	Digital	PNP	3.6	16	18 to 30	CE Marked	7603N15	000000




						IP65, IP67, IP69K

						Input	IO-Link	6	7	Digital	PNP	16 to 30	12	—	—	—	—	18 to 30	UL Listed, C-UL Listed, CE Marked	7603N16	000000


						Input	IO-Link	10	11	Digital	PNP	16 to 30	20	—	—	—	—	18 to 30	UL Listed, C-UL Listed, CE Marked	7603N17	000000
						Input, Output	IO-Link	8	10	Digital	PNP	18 to 30	16	Digital	PNP	3.6	16	18 to 30	CE Marked	7603N21	000000

Converters

Converters translate analog signals to digital signals, making sensors and actuators IO-Link compatible. They are required to connect analog components to controllers and modules.

IP67 Enclosure Rating—IP67 rated components can be temporarily submerged in water.

			Input				Output
	Signal Conversion	Total No. of M12 Connections	Signal Type	Digital Signal	Analog Signal	No. of	Signal Type	Digital Signal	Analog Signal	No. of	Certification		Each
M12 Plug In







				Washdown (IP67)

				Analog to Digital	2	Analog	—	0V DC to 10V DC	2	Digital	PNP	—	1	UL Listed, C-UL Listed, CE Marked	7603N52	0000000


				Analog to Digital to Analog	2	Analog	—	4 mA to 20 mA	1	Digital, Analog	PNP	4 mA to 20 mA	2	UL Listed, C-UL Listed, CE Marked	7603N51	000000
				Digital to Analog	2	Digital	PNP	—	1	Analog	—	0V DC to 10V DC	2	UL Listed, C-UL Listed, CE Marked	7603N53	000000
				Digital to Analog	2	Digital	PNP	—	1	Analog	—	4 mA to 20 mA	2	UL Listed, C-UL Listed, CE Marked	7603N54	000000

Caps

For Plugs

For Sockets

Protective caps prevent dust and debris from harming M12 connections when they're not in use. They also help maintain IP ratings by covering unused ports.

Stainless Steel—Stainless steel protective caps have a neoprene gasket, which helps maintain IP69K ratings.

	For Thread
	Size	Location	Material	Temp. Range, ° F	Includes		Each
For Plugs, For Receptacles



		M12	External	Anodized Aluminum	0 to 220	Lanyard	6897K73	000000


		M12	External	Stainless Steel	0 to 220	Lanyard	6897K75	00000


		For Receptacles, For Sockets



				M12	Internal	Anodized Aluminum	0 to 220	—	6897K74	00000


				M12	Internal	Stainless Steel	0 to 220	Lanyard	6897K59	00000

Fast-Processing Open-Source PLCs

When milliseconds matter, these PLCs don't have to wait for your network—they process complex data and run code locally. The result is real-time performance in the field, plus cloud connectivity when you want it, for truly uninterrupted operation. These PLCs support Python, C++, Bash, and other open-source languages, so you can program them in the one you know. You can also use customizable libraries to your advantage.

Write code from anywhere—on any device and browser—using the manufacturer’s free web-based software. When you’re ready, transfer your program to the PLC with an Ethernet RJ45 cord, Bluetooth, or Wi-Fi. In addition to wireless communication, these PLCs have a range of hardwire connections, including digital inputs and outputs, Ethernet, and serial terminals. This means they can control a fully wireless system, a wired setup with legacy equipment, or a hybrid of both. Mount them to 35 mm DIN rail.

For the Manufacturer User Manual, click on a part number and select Product Detail.

	Digital Input/Output Type	Max. Output Current @ Voltage	Transistor Input Voltage, V DC	Operating Voltage, V DC	Data Connection Type	Serial Port Interface (No. of)	Control Communication Protocol	IoT Communication Protocol		Each
With Broadcom BCM2837B0 Microprocessor and ATmega16u4 Microcontroller



	Digital Transistor (8)	PNP/NPN	0.85 amp @ 30V DC	0 to 30	5 to 30	Ethernet RJ45 (2 each) Micro USB-AB (1 each) Wi-Fi 802.11b/g/n Bluetooth 4.0	RS-232/RS-422/RS-485 (1)	DCON ASCII	REST Over HTTP, WebSocket	6482N11	0000000

Compact PLCs

PLC Shown with Two Expansion

Modules (Sold Separately)

Support for up to 188 inputs and outputs—these PLCs are ideal for basic tasks where more advanced PLCs would be overkill, such as operating lighting and HVAC systems. They’re also known as smart relays. Connect these PLCs to your Ethernet network to control devices anywhere in your facility. They use an open communication protocol, so you can mix and match devices from different manufacturers. Mount them to 35 mm DIN rail in your electrical cabinet or use mounting brackets (sold separately) to secure them to a flat surface.

You’ll need a license key (sold separately) for the manufacturer’s software. Write your program in common PLC languages, such as Ladder Logic and Structured Text, then transfer your program to the PLC with an Ethernet cord. Use the software to monitor, test, and troubleshoot issues in real time. Add a memory card to back up, store, and transfer programs to multiple machines.

These PLCs have digital inputs and outputs.

For the Manufacturer User Manual, click on a part number and select Product Detail.

PLCs with Display

Image of Product. Front orientation. PLCs. Compact PLCs, Display.

These PLCs have a screen and keypad that let you adjust timers and change basic settings without connecting to your computer. You can also view system errors and warnings for quick troubleshooting.

Screw Terminals—Screw terminals are the most common wire connection—insert your wires and tighten the screws to secure them.

Spring-Clamp Terminals—Spring-clamp terminals hold wires with a clamp instead of screws, so connections stay secure, even with vibration.

Relay Output—PLCs with relay outputs are ideal for devices that switch a few times per minute, such as compressors.

Transistor Output—PLCs with transistor outputs are ideal for devices that switch multiple times per second, such as indicator lights and stepper motor drives. They’re PNP outputs, also called sourcing outputs, so they work only with NPN devices. If you need to connect different devices, use an output converter or signal converter (both not included).

Analog Input Signal—PLCs with analog inputs receive signals from devices that monitor temperature, pressure, and other measurements that vary.

	Outputs				Inputs										Screw Terminals		Spring-Clamp Terminals
	Type (No. of)	Signal Type	Digital Signal	Max. Current @ Voltage	Type (No. of)	Signal Type	Digital Signal	Transistor Voltage	Analog Signal	Max. No. of Inputs/Outputs	Operating Voltage	Data Connection Type	Control Communication Protocol	Software Req.		Each		Each
Eaton Easy E4 Series



		Relay (4)	Digital	—	10 amp @ 240V AC 8 amp @ 24V DC	Transistor (4) Transistor/Analog (4)	Analog, Digital	PNP/NPN	12V DC 24V DC	0V DC to 10V DC	188	24V AC 12V DC 24V DC	Ethernet RJ45 (1 each) microSD Card (1 each)	Modbus TCP/IP	Yes	7244K9	0000000	7244K35	0000000


		Relay (4)	Digital	—	10 amp @ 240V AC 8 amp @ 24V DC	Transistor (8)	Digital	PNP/NPN	100V AC to 240V AC 100V DC to 240V DC	—	188	100 to 240V AC 100 to 240V DC	Ethernet RJ45 (1 each) microSD Card (1 each)	Modbus TCP/IP	Yes	7244K8	000000	7244K34	000000
		Transistor (4)	Digital	PNP	0.5 amp @ 24V DC	Transistor (4) Transistor/Analog (4)	Analog, Digital	PNP/NPN	24V DC	0V DC to 10V DC	188	24V DC	Ethernet RJ45 (1 each) microSD Card (1 each)	Modbus TCP/IP	Yes	7244K12	000000	7244K36	000000

Accessories and Replacements for PLCs

Mfr. Model No.	For Operating System	Media Type		Each
EASYSOFT-SWLIC/EasySoft 8.31	Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 11	Download	7244K7	000000

Displays

Shown Powered On

Monitor status and control basic settings on these PLCs. These displays mount into a panel cutout or enclosure with the included clips. When mounted, the front is NEMA and IP rated for protection against washdowns and sprays of oil and coolant. These displays are designed to work with these PLCs right out of the box—just connect them to the PLC with an Ethernet cord (not included).

					For Panel Cutout
	Diag. Screen Size	Screen Resolution	Data Connection Type	Operating Voltage, V DC	Lg.	Ht.	Mounting Fasteners Included		Each
Front IP65, NEMA 4X



		4.3"	480 × 272	Ethernet RJ45 (1 each) USB-A, 2.0 (1 each)	24	4.6"	4"	Yes	7244K47	0000000

For Screw Size	Material	Mounting Fasteners Included	Pkg. Qty.		Pkg.
No. 8, M4	Metal	No	3	7244K49	000000

Includes	Material		Each
Three Connectors, Three End Caps	Plastic	7244K48	000000

PLCs without Display

Image of Product. Front orientation. Digital Input Signal. Compact PLCs.

Instead of a display, these PLCs have LED status indicators to show they’re powered and running. Since you can’t adjust settings at the PLC, there’s less chance of accidental changes.

Screw Terminals—Screw terminals are the most common wire connection—insert your wires and tighten the screws to secure them.

Spring-Clamp Terminals—Spring-clamp terminals hold wires with a clamp instead of screws, so connections stay secure, even with vibration.

Relay Output—PLCs with relay outputs are ideal for devices that switch a few times per minute, such as compressors.

Analog Input Signal—PLCs with analog inputs receive signals from devices that monitor temperature, pressure, and other measurements that vary.

	Outputs				Inputs										Screw Terminals		Spring-Clamp Terminals
	Type (No. of)	Signal Type	Digital Signal	Max. Current @ Voltage	Type (No. of)	Signal Type	Digital Signal	Transistor Voltage	Analog Signal	Max. No. of Inputs/Outputs	Operating Voltage	Data Connection Type	Control Communication Protocol	Software Req.		Each		Each
Eaton Easy E4 Series



		Relay (4)	Digital	—	10 amp @ 240V AC 8 amp @ 24V DC	Transistor (4) Transistor/Analog (4)	Analog, Digital	PNP/NPN	12V DC 24V DC	0V DC to 10V DC	188	24V AC 12V DC 24V DC	Ethernet RJ45 (1 each) microSD Card (1 each)	Modbus TCP/IP	Yes	7244K11	0000000	7244K32	0000000


		Relay (4)	Digital	—	10 amp @ 240V AC 8 amp @ 24V DC	Transistor (8)	Digital	PNP/NPN	100V AC to 240V AC 100V DC to 240V DC	—	188	100 to 240V AC 100 to 240V DC	Ethernet RJ45 (1 each) microSD Card (1 each)	Modbus TCP/IP	Yes	7244K14	000000	7244K31	000000
		Transistor (4)	Digital	PNP	0.5 amp @ 24V DC	Transistor (4) Transistor/Analog (4)	Analog, Digital	PNP/NPN	24V DC	0V DC to 10V DC	188	24V DC	Ethernet RJ45 (1 each) microSD Card (1 each)	Modbus TCP/IP	Yes	7244K13	000000	7244K33	000000

Accessories and Replacements for PLCs

Mfr. Model No.	For Operating System	Media Type		Each
EASYSOFT-SWLIC/EasySoft 8.31	Windows 7, Windows 8, Windows 8.1, Windows 10, Windows 11	Download	7244K7	000000

Displays

Shown Powered On

					For Panel Cutout
	Diag. Screen Size	Screen Resolution	Data Connection Type	Operating Voltage, V DC	Lg.	Ht.	Mounting Fasteners Included		Each
Front IP65, NEMA 4X



		4.3"	480 × 272	Ethernet RJ45 (1 each) USB-A, 2.0 (1 each)	24	4.6"	4"	Yes	7244K47	0000000

For Screw Size	Material	Mounting Fasteners Included	Pkg. Qty.		Pkg.
No. 8, M4	Metal	No	3	7244K49	000000

Includes	Material		Each
Three Connectors, Three End Caps	Plastic	7244K48	000000

Analog Signal Input/Output Expansion Modules

Image of Product. Front orientation. Analog Input Signal. Compact PLCs.

Add analog inputs and outputs to these PLCs. These modules receive signals from devices that monitor temperature, pressure, and other measurements that vary. They also send signals to devices that need precise control, such as dimmable LED drivers.

Add expansion modules to PLCs when your system grows or needs new functionality. All modules have an LED status indicator to show the device is powered and running.

Screw Terminals—Screw terminals are the most common wire connection—insert your wires and tighten the screws to secure them.

Spring-Clamp Terminals—Spring-clamp terminals hold wires with a clamp instead of screws, so connections stay secure, even with vibration.

	Outputs		Inputs			Screw Terminals		Spring-Clamp Terminals
	Type (No. of)	Analog Signal	Type (No. of)	Analog Signal	Operating Voltage		Each		Each
Eaton Easy E4 Series



		Analog (2)	0V DC to 10V DC, 0 mA to 20 mA, 4 mA to 20 mA	Analog (4)	0 mA to 20 mA, 0V DC to 10V DC, 4 mA to 20 mA	24V DC	7244K22	0000000	7244K38	0000000

Accessories and Replacements for PLC Expansion Modules

For Screw Size	Material	Mounting Fasteners Included	Pkg. Qty.		Pkg.
No. 8, M4	Metal	No	3	7244K49	000000

Includes	Material		Each
Three Connectors, Three End Caps	Plastic	7244K48	000000

Digital Signal Input/Output Expansion Modules

Increase the number of digital inputs and outputs you can control with these PLCs. These modules send and receive on-off or high-low signals, so you can integrate devices such as limit switches and lights.

Add expansion modules to PLCs when your system grows or needs new functionality. All modules have an LED status indicator to show the device is powered and running.

Screw Terminals—Screw terminals are the most common wire connection—insert your wires and tighten the screws to secure them.

Spring-Clamp Terminals—Spring-clamp terminals hold wires with a clamp instead of screws, so connections stay secure, even with vibration.

Relay Output—PLCs with relay outputs are ideal for devices that switch a few times per minute, such as compressors.

	Outputs			Inputs				Screw Terminals		Spring-Clamp Terminals
	Type (No. of)	Digital Signal	Max. Current @ Voltage	Type (No. of)	Digital Signal	Transistor Voltage	Operating Voltage		Each		Each
Eaton Easy E4 Series



		Relay (4)	—	5 amp @ 240V AC	Transistor (4)	PNP/NPN	12V DC 24V DC	24V AC 12V DC 24V DC	7244K15	0000000	7244K43	0000000


		Relay (4)	—	5 amp @ 240V AC	Transistor (4)	PNP/NPN	100V AC to 240V AC 100V DC to 240V DC	100 to 240V AC 100 to 240V DC	7244K17	000000	7244K41	000000
		Relay (8)	—	5 amp @ 240V AC	Transistor (8)	PNP/NPN	12V DC 24V DC	24V AC 12V DC 24V DC	7244K16	000000	7244K44	000000
		Relay (8)	—	5 amp @ 240V AC	Transistor (8)	PNP/NPN	100V AC to 240V AC 100V DC to 240V DC	100 to 240V AC 100 to 240V DC	7244K18	000000	7244K42	000000
		Transistor (4)	PNP	0.5 amp @ 24V DC	Transistor (4)	PNP/NPN	24V DC	24V DC	7244K19	000000	7244K45	000000
		Transistor (8)	PNP	0.5 amp @ 24V DC	Transistor (8)	PNP/NPN	24V DC	24V DC	7244K21	000000	7244K46	000000

Accessories and Replacements for PLC Expansion Modules

For Screw Size	Material	Mounting Fasteners Included	Pkg. Qty.		Pkg.
No. 8, M4	Metal	No	3	7244K49	000000

Includes	Material		Each
Three Connectors, Three End Caps	Plastic	7244K48	000000

Communication Expansion Modules

Image of Product. Front orientation. Expansion Modules. Compact PLCs, Communication.

Integrate legacy equipment, scanners, printers, and other serial devices into your automated system. These communication modules have two power connections. The first powers the module from an external power supply. The second can be connected to another module, so you can daisy-chain multiple communication modules.

Add expansion modules to PLCs when your system grows or needs new functionality. All modules have an LED status indicator to show the device is powered and running.

Screw Terminals—Screw terminals are the most common wire connection—insert your wires and tighten the screws to secure them.

					Screw Terminals
	Operating Voltage	Serial Port Interface (No. of)	Control Communication Protocol	Max. No. of Connections		Each
Eaton Easy E4 Series



		24V DC	RS-485 (1)	Modbus RTU	32	7244K37	0000000

Accessories and Replacements for PLC Expansion Modules

For Screw Size	Material	Mounting Fasteners Included	Pkg. Qty.		Pkg.
No. 8, M4	Metal	No	3	7244K49	000000

Includes	Material		Each
Three Connectors, Three End Caps	Plastic	7244K48	000000

Temperature Probe Analog Expansion Modules

Image of Product. Front orientation. Expansion Modules. Compact PLCs, Temperature Probe.

These modules accept signals from RTDs to trigger actions based on temperature readings, such as opening a valve when a threshold is reached.

Add expansion modules to PLCs when your system grows or needs new functionality. All modules have an LED status indicator to show the device is powered and running.

Screw Terminals—Screw terminals are the most common wire connection—insert your wires and tighten the screws to secure them.

Spring-Clamp Terminals—Spring-clamp terminals hold wires with a clamp instead of screws, so connections stay secure, even with vibration.

	Inputs				Screw Terminals		Spring-Clamp Terminals
	Type (No. of)	RTD Type	No. of Terminals per Input	Operating Voltage		Each		Each
Eaton Easy E4 Series



		Analog, RTD (4)	Pt100, Pt1000, Ni1000	3	24V DC	7244K23	0000000	7244K39	0000000

Accessories and Replacements for PLC Expansion Modules

For Screw Size	Material	Mounting Fasteners Included	Pkg. Qty.		Pkg.
No. 8, M4	Metal	No	3	7244K49	000000

DIN-Rail Mount Solid State Interface Relays

With no moving parts, these solid state relays last longer, switch faster, and are quieter than mechanical relays. They interface between your controller and components to isolate input and output circuits, which protects components from voltage spikes, amplifies the relay’s signal, and reduces interference for reliable transmission. The relay’s LED indicator shines when it’s powered on, so you know at a glance which relays are wired correctly and what the switching position is. These relays are often used for switching small motors and sensors. Rated IP20, they prevent fingers and other objects from touching live circuits.

Mount them on 35 mm DIN rail (also known as DIN 3 rail) with the included socket. Relays disconnect from the socket for easy replacement.

1 Circuit Controlled with 1 Off—SPST-NO

Image of Product. Front orientation. Contains Annotated. Interface Relays. DIN-Rail Mount Solid State Interface Relays, 1 Circuit Controlled, With Screw Terminals.

With Screw

Terminals

	Interface Relays												Replacement Relays
	No. of Terminals	Input Voltage	Output Voltage, V DC	Control Current, mA	Switching Current @ Voltage	Max. Switching Voltage, V DC	Ht.	Wd.	Dp.	Features		Each		Each
With Screw Terminals



		5	24V AC, 48V AC, 60V AC, 120V AC, 240V AC, 24V DC, 48V DC, 60V DC, 120V DC, 240V DC	3 to 48	19	100 mA @ 48V DC	48	3.5"	0.2"	3.4"	LED Power Indicator	7356K25	000000	4026N14	000000


		5	24V DC	3 to 48	8.5	100 mA @ 48V DC	48	3.1"	0.2"	3.7"	LED Power Indicator	7356K26	00000	———	0

Miniature PLCs

Get only what you need—up to 36 inputs and outputs—to save space and money. These PLCs are best for controlling simple setups, such as part of your conveyor line. They’re smaller than a deck of cards, so you can stick them inside equipment with the included adhesive mounting pad. Alternatively, mount them to 35 mm DIN rail with a bracket (sold separately).

Once you download the manufacturer’s free software, you can program in Ladder Logic or Flow Chart. When you’re ready, transfer your program to the PLC with a USB Mini-B cord. You can also set up the USB port for serial communication to your devices.

The transistor outputs don’t have moving parts, so they’re ideal for fast-switching, low-power devices. Since they’re NPN outputs, also called sinking outputs, they provide the ground connection when on. If you need to connect different devices, use an output converter (sold separately). Wire connections without turning screws with the spring-clamp terminals. LED status indicators show you when inputs and outputs need troubleshooting.

For the Manufacturer User Manual, click on a part number and select Product Detail.

PLCs with Transistor Inputs

	Outputs				Inputs
Max. No. of Inputs/Outputs	Type (No. of)	Signal Type	Digital Signal	Max. Current @ Voltage	No. of Inputs	Signal Type	Digital Signal	Transistor Voltage, V DC	Operating Voltage Range, V DC	Serial Port Interface (No. of)	Control Communication Protocol		Each
9	Transistor (6)	Digital	NPN	0.3 amp @ 30V DC	3	Digital	PNP	3 to 30	5.1 to 28	RS-232 (1)	Modbus RTU	1394N11	000000
12	Transistor (6)	Digital	NPN	0.3 amp @ 30V DC	6	Digital	PNP	3 to 30	5.1 to 28	—	Modbus RTU	1394N12	00000
18	Transistor (12)	Digital	NPN	0.3 amp @ 30V DC	6	Digital	PNP	3 to 30	5.1 to 28	RS-232/RS-485 (1)	Modbus RTU	1394N13	000000
24	Transistor (12)	Digital	NPN	0.3 amp @ 30V DC	12	Digital	PNP	3 to 30	5.1 to 28	—	Modbus RTU	1394N14	000000
32	Transistor (18)	Digital	NPN	0.3 amp @ 30V DC	14	Digital	PNP	3 to 30	5.1 to 28	RS-232 (1)	Modbus RTU	1394N15	000000
36	Transistor (18)	Digital	NPN	0.3 amp @ 30V DC	18	Digital	PNP	3 to 30	5.1 to 28	—	Modbus RTU	1394N16	000000

Accessories for PLCs

Communication Cords

Image of Product. Front orientation. D-Sub Cords.

Connect PLCs to devices that have DB9 connections, such as barcode scanners.

	Shielding	Shield Type	Control Communication Protocol		Each
RS-232 Terminal Block × DB9 Socket



	5	Double Shielded	Braid, Foil	Modbus RTU	1394N103	000000

PLCs with Transistor and Analog Inputs

PLCs with analog inputs or outputs help you automate based on measurements that vary, such as pressure or speed readings.

	Outputs				Inputs							0V DC to 10V DC Input Signal		4 mA to 20 mA Input Signal
Max. No. of Inputs/Outputs	Type (No. of)	Signal Type	Digital Signal	Max. Current @ Voltage	No. of Inputs	Signal Type	Digital Signal	Transistor Voltage, V DC	Operating Voltage Range, V DC	Serial Port Interface (No. of)	Control Communication Protocol		Each		Each
9	Transistor (3)	Digital	NPN	0.3 amp @ 30V DC	Transistor (3) Analog (3)	Digital, Analog	PNP	3 to 30	5.1 to 28	RS-232 (1)	Modbus RTU	1394N21	000000	1394N22	000000
27	Transistor (12)	Digital	NPN	0.3 amp @ 30V DC	Transistor (12) Analog (3)	Digital, Analog	PNP	3 to 30	5.1 to 28	RS-232 (1)	Modbus RTU	———	0	1394N23	000000
36	Transistor (12)	Digital	NPN	0.3 amp @ 30V DC	Transistor (12) Analog (12)	Digital, Analog	PNP	3 to 30	5.1 to 28	—	Modbus RTU	———	0	1394N24	000000

Accessories for PLCs

Communication Cords

Connect PLCs to devices that have DB9 connections, such as barcode scanners.

	Shielding	Shield Type	Control Communication Protocol		Each
RS-232 Terminal Block × DB9 Socket



	5	Double Shielded	Braid, Foil	Modbus RTU	1394N103	000000

PLCs with Transistor and Thermocouple Inputs

PLCs with analog inputs or outputs help you automate based on measurements that vary, such as pressure or speed readings.

PLCs with thermocouple inputs help you automate based on temperature readings.

	Outputs				Inputs
Max. No. of Inputs/Outputs	Type (No. of)	Signal Type	Digital Signal	Max. Current @ Voltage	No. of Inputs	Signal Type	Digital Signal	Transistor Voltage, V DC	Thermocouple Type	Operating Voltage Range, V DC	Serial Port Interface (No. of)	Control Communication Protocol		Each
20	Transistor (12)	Digital	NPN	0.3 amp @ 30V DC	Transistor (6) Thermocouple (2)	Digital	PNP	3 to 30	J, K, N, T	5.1 to 28	RS-232/RS-485 (1)	Modbus RTU	1394N31	0000000

Accessories for PLCs

Communication Cords

Connect PLCs to devices that have DB9 connections, such as barcode scanners.

	Shielding	Shield Type	Control Communication Protocol		Each
RS-232 Terminal Block × DB9 Socket



	5	Double Shielded	Braid, Foil	Modbus RTU	1394N103	000000

PLCs with Transistor, Analog, and Thermocouple Inputs

PLCs with analog inputs or outputs help you automate based on measurements that vary, such as pressure or speed readings.

PLCs with thermocouple inputs help you automate based on temperature readings.

	Outputs					Inputs								0V DC to 10V DC Input Signal		4 mA to 20 mA Input Signal
Max. No. of Inputs/Outputs	Type (No. of)	Signal Type	Digital Signal	Max. Current @ Voltage	Analog Signal	No. of Inputs	Signal Type	Digital Signal	Transistor Voltage, V DC	Thermocouple Type	Operating Voltage Range, V DC	Serial Port Interface (No. of)	Control Communication Protocol		Each		Each
28	Transistor (12) Analog (2)	Analog Digital	NPN	0.3 amp @ 30V DC	0V DC to 10V DC, 0V DC to 5V DC	Transistor (10) Analog (4) Thermocouple (4)	Digital, Analog	PNP	3 to 30	J, K, N, T	5.1 to 28	RS-232 (2)	Modbus RTU	———	0	1394N41	0000000
31	Transistor (18)	Digital	NPN	0.3 amp @ 30V DC	—	Transistor (6) Analog (3) Thermocouple (4)	Digital, Analog	PNP	3 to 30	J, K, N, T	5.1 to 28	RS-232 (1)	Modbus RTU	1394N42	0000000	1394N43	000000

Accessories for PLCs

Communication Cords

Connect PLCs to devices that have DB9 connections, such as barcode scanners.

	Shielding	Shield Type	Control Communication Protocol		Each
RS-232 Terminal Block × DB9 Socket



	5	Double Shielded	Braid, Foil	Modbus RTU	1394N103	000000

Output Converters


Converter Connected to PLC

Turn the PLC’s low-power transistor signals into relay contacts when you need to switch high-power loads, such as motors. You don’t need additional programming—just connect these converters to the 6-pin output on the PLC with the included cord. These converters must be connected to a power supply since they don’t draw power from the output terminal.

Outputs			Inputs
Type (No. of)	Signal Type	Max. Current @ Voltage	No. of Inputs	Signal Type	Digital Signal	Operating Voltage Range, V DC		Each
Relay (6)	Digital	5 amp @ 250V AC 5 amp @ 30V DC	6	Digital	NPN	5.1 to 28	1394N101	000000

PLCs

Our most scalable PLCs give your system room to grow. With support for up to 512 inputs and outputs, these PLCs can automate multiple processes at the same time, including those with scanners and other high-speed devices. They have serial connectivity, so you can integrate HMIs, legacy equipment, and other compatible devices. These PLCs support a variety of communication protocols, so they can control devices from many different manufacturers.

Once you download the manufacturer’s free software, start programming using an IEC standard language, such as Ladder Logic. When you’re ready, transfer your program to the PLC with a USB Mini-B cord or USB-C cord. Use the software to monitor, test, and troubleshoot issues in real time. These PLCs mount to 35 mm DIN rail in your electrical cabinet.

These PLCs have digital inputs and outputs.

For the Manufacturer User Manual, click on a part number and select Product Detail.

Digital Input/Output PLCs


PLC	PLCs with 1 Ethernet RJ45 Connection	PLCs with 2 Ethernet RJ45 Connections

Relay Output—PLCs with relay outputs are ideal for devices that switch a few times per minute, such as compressors.

Transistor Output—PLCs with transistor outputs are ideal for devices that switch multiple times per second, such as indicator lights and stepper motor drives.

PNP Output Signal—PNP outputs, also called sourcing outputs, work only with NPN devices.

NPN Output Signal—NPN outputs, also called sinking outputs, work only with PNP devices. If you need to connect different devices, use an output converter or signal converter (both not included).

microSD Card—PLCs with a microSD card slot let you back up, store, and transfer programs on a memory card. This is useful when you have multiple machines using the same program or need to frequently update your program.

	Outputs			Inputs
	Type (No. of)	Digital Signal	Max. Current @ Voltage	Type (No. of)	Digital Signal	Transistor Voltage, V DC	Max. No. of Inputs/Outputs	Operating Voltage, V DC	Data Connection Type	Serial Port Interface (No. of)	Control Communication Protocol	IoT Communication Protocol	Software Req.		Each
PLCs



		Relay (8)	—	2 amp @ 250V AC 2 amp @ 24V DC	Transistor (8)	PNP/NPN	12 to 24	384	12 to 24	Mini USB-B (1 each)	RS-232 (1), RS-422/RS-485 (1)	Modbus RTU	—	Yes	8662N11	0000000


		PLCs with 1 Ethernet RJ45 Connection



				Relay (6)	—	2 amp @ 250V AC 2 amp @ 24V DC	Transistor (8)	PNP/NPN	12 to 24	384	12 to 24	Mini USB-B (1 each)	RS-232 (1), RS-422/RS-485 (1)	Modbus RTU Modbus TCP/IP	—	Yes	8662N12	000000


				Transistor (8)	PNP	0.2 amp @ 24V DC	Transistor (8)	PNP/NPN	12 to 24	384	12 to 24	Mini USB-B (1 each)	RS-232 (1), RS-422/RS-485 (1)	Modbus RTU Modbus TCP/IP	—	Yes	8662N13	000000
				Transistor (8)	NPN	0.2 amp @ 24V DC	Transistor (8)	PNP/NPN	12 to 24	384	12 to 24	Mini USB-B (1 each)	RS-232 (1), RS-422/RS-485 (1)	Modbus RTU Modbus TCP/IP	—	Yes	8662N14	000000


				PLCs with 2 Ethernet RJ45 Connections



						Relay (8)	—	2 amp @ 250V AC 2 amp @ 24V DC	Transistor (8)	PNP/NPN	24	512	12 to 24	USB-C (1 each) microSD Card (1 each)	RS-232 (1), RS-422/RS-485 (1)	EtherNet/IP Modbus RTU Modbus TCP/IP EtherCAT PROFINET	MQTT	Yes	8662N15	000000


						Transistor (16)	PNP	0.2 amp @ 24V DC	Transistor (16)	PNP/NPN	24	512	12 to 24	USB-C (1 each) microSD Card (1 each)	RS-232 (1), RS-422/RS-485 (1)	EtherNet/IP Modbus RTU Modbus TCP/IP EtherCAT PROFINET	MQTT	Yes	8662N16	000000
						Transistor (16)	NPN	0.2 amp @ 24V DC	Transistor (16)	PNP/NPN	24	512	12 to 24	USB-C (1 each) microSD Card (1 each)	RS-232 (1), RS-422/RS-485 (1)	EtherNet/IP Modbus RTU Modbus TCP/IP EtherCAT PROFINET	MQTT	Yes	8662N17	000000

Analog Signal Input/Output Expansion Modules

Image of Product. Front orientation. Expansion Modules. PLCs, Analog Input Signal, Analog Output Signal.

Add expansion modules to these PLCs when your system grows or needs new functionality. All modules have an LED status indicator to show the device is powered and running.

Add analog inputs and outputs to these PLCs. Modules with inputs receive signals from devices that monitor temperature, pressure, and other measurements that vary. Modules with outputs send signals to devices that need precise control, such as variable frequency drives.

Outputs		Inputs
Type (No. of)	Analog Signal	Type (No. of)	Analog Signal	Operating Voltage, V DC		Each



	Analog (2)	4 mA to 20 mA	Analog (2)	0V DC to 10V DC, 0V DC to 5V DC	24	8662N28	0000000

Analog Signal Output Expansion Modules

Image of Product. Front orientation. Expansion Modules. PLCs, Analog Output Signal.

Add expansion modules to these PLCs when your system grows or needs new functionality. All modules have an LED status indicator to show the device is powered and running.

Add analog inputs and outputs to these PLCs. Modules with outputs send signals to devices that need precise control, such as variable frequency drives.

Outputs
Type (No. of)	Analog Signal	Operating Voltage, V DC		Each



	Analog (4)	0V DC to 10V DC	24	8662N33	0000000


	Analog (4)	4 mA to 20 mA	24	8662N32	000000

Analog Signal Input Expansion Modules

Image of Product. Front orientation. Expansion Modules. PLCs, Analog Input Signal.

Add expansion modules to these PLCs when your system grows or needs new functionality. All modules have an LED status indicator to show the device is powered and running.

Add analog inputs and outputs to these PLCs. Modules with inputs receive signals from devices that monitor temperature, pressure, and other measurements that vary.

Inputs
Type (No. of)	Analog Signal	Operating Voltage, V DC		Each



	Analog (4)	0V DC to 10V DC, 4 mA to 20 mA, 0V DC to 5V DC	24	8662N26	0000000


	Analog (8)	4 mA to 20 mA, 0V DC to 5V DC	24	8662N27	000000

Digital Signal Input/Output Expansion Modules

Image of Product. Front orientation. Expansion Modules. PLCs, Digital Output Signal, Digital Input Signal.

Add expansion modules to these PLCs when your system grows or needs new functionality. All modules have an LED status indicator to show the device is powered and running.

Increase the number of digital inputs and outputs you can control with these PLCs. These modules communicate using on-off or high-low signals, so you can integrate devices such as limit switches and lights.

Relay Output—PLCs with relay outputs are ideal for devices that switch a few times per minute, such as compressors.

Transistor Output—PLCs with transistor outputs are ideal for devices that switch multiple times per second, such as indicator lights and stepper motor drives.

PNP Output Signal—PNP outputs, also called sourcing outputs, work only with NPN devices.

Line Driver—Modules with line driver inputs accept differential signals from high-resolution encoders often used in robotics, CNC, and motion control systems.

NPN Open Collector—Modules with PNP/NPN open collector inputs accept single voltage signals from standard encoders and sensors.

Outputs			Inputs
Type (No. of)	Digital Signal	Max. Current @ Voltage	Type (No. of)	Digital Signal	Transistor Voltage, V DC		Each



	Relay (8)	—	2 amp @ 250V AC 2 amp @ 24V DC	Transistor (8)	PNP/NPN	24	8662N18	0000000


	Transistor (4)	NPN	0.2 amp @ 24V DC	Transistor (32)	Line Driver	5 24	8662N35	000000
	Transistor (4)	NPN	0.2 amp @ 24V DC	Transistor (32)	PNP/NPN Open Collector	12 5 24	8662N34	000000
	Transistor (16)	PNP	0.2 amp @ 24V DC	Transistor (16)	PNP/NPN	24	8662N25	000000
	Transistor (16)	NPN	0.2 amp @ 24V DC	Transistor (16)	PNP/NPN	24	8662N24	000000

Digital Signal Input Expansion Modules

Image of Product. Front orientation. Expansion Modules. PLCs, Digital Input Signal.

Add expansion modules to these PLCs when your system grows or needs new functionality. All modules have an LED status indicator to show the device is powered and running.

Inputs
Type (No. of)	Digital Signal	Transistor Voltage, V DC		Each



	Transistor (32)	PNP/NPN	24	8662N21	0000000

Digital Signal Output Expansion Modules

Image of Product. Front orientation. Expansion Modules. PLCs, Digital Output Signal.

Add expansion modules to these PLCs when your system grows or needs new functionality. All modules have an LED status indicator to show the device is powered and running.

Relay Output—PLCs with relay outputs are ideal for devices that switch a few times per minute, such as compressors.

Transistor Output—PLCs with transistor outputs are ideal for devices that switch multiple times per second, such as indicator lights and stepper motor drives.

PNP Output Signal—PNP outputs, also called sourcing outputs, work only with NPN devices.

Outputs
Type (No. of)	Digital Signal	Max. Current @ Voltage		Each



	Relay (16)	—	2 amp @ 250V AC 2 amp @ 24V DC	8662N19	0000000


	Transistor (32)	PNP	0.2 amp @ 24V DC	8662N23	000000
	Transistor (32)	NPN	0.2 amp @ 24V DC	8662N22	000000

Temperature Probe Analog Expansion Modules


RTD Input	Thermocouple Input

These modules accept signals from thermocouples or RTDs to trigger actions based on temperature readings, such as opening a valve when a threshold is reached.

Add expansion modules to these PLCs when your system grows or needs new functionality. All modules have an LED status indicator to show the device is powered and running.

Inputs
Type (No. of)	RTD Type	Thermocouple Type	No. of Terminals per Input	Operating Voltage, V DC		Each



	Analog, RTD (4)	JPt100, Pt100, Pt1000, Ni1000	—	3	24	8662N29	0000000


	Analog, Thermocouple (4)	—	B, E, J, K, N, R, S, T	2	24	8662N31	000000

Communication Expansion Modules


Modbus RTU Communication Protocol	Modbus TCP/IP Communication Protocol

Increase these PLCs’ ability to communicate with different devices.

Add expansion modules to these PLCs when your system grows or needs new functionality. All modules have an LED status indicator to show the device is powered and running.

Serial Port Interface (No. of)	Control Communication Protocol	Max. No. of Connections		Each



—	RS-232 (1), RS-422/RS-485 (1)	Modbus RTU	64	8662N36	0000000


Ethernet RJ45 (1 each)	—	Modbus TCP/IP	64	8662N37	000000

Open-Source PLCs

Kick-start your automation with example code and customizable libraries from the Arduino ecosystem. Use the manufacturer’s free software to program these PLCs with Arduino or a standard PLC language you’re comfortable with. When you’re ready, transfer your program to the PLC with a USB-C cord. Use the software to monitor, test, and troubleshoot issues in real time.

These PLCs support up to 88 inputs and outputs—enough to automate lighting or HVAC controls. They’re also known as smart relays. They have digital relay outputs that are ideal for loads that switch a few times per minute, such as compressors. However, they’re not designed for devices that switch multiple times per second, such as stepper motor drivers. Connect these PLCs to your Ethernet network to control devices anywhere in your facility. They use an open communication protocol, so you can mix and match devices from different manufacturers. Mount them to 35 mm DIN rail in your electrical cabinet.

For the Manufacturer User Manual, click on a part number and select Product Detail.

PLCs

RS-485—PLCs with RS-485 terminals let you integrate legacy equipment and other serial devices into your system.

Wi-Fi—PLCs with Wi-Fi have cloud connectivity that lets you program, monitor, and update them from anywhere.

Bluetooth—They also have Bluetooth to make initial setup easy—you can wirelessly configure them at close range. These PLCs send alerts directly to your mobile device, so you can quickly respond to issues.

Outputs			Inputs
Type (No. of)	Signal Type	Max. Current @ Voltage	Type (No. of)	Signal Type	Digital Signal	Transistor Voltage, V DC	Analog Signal	Max. No. of Inputs/Outputs	Operating Voltage, V DC	Serial Port Interface (No. of)	Control Communication Protocol	Data Connection Type		Each
Relay (4)	Digital	10 amp @ 250V AC	Transistor/Analog (8)	Analog Digital	PNP/NPN	24	0V DC to 10V DC	88	12 to 24	—	Modbus TCP/IP	—	8647N13	0000000
Relay (4)	Digital	10 amp @ 250V AC	Transistor/Analog (8)	Analog Digital	PNP/NPN	24	0V DC to 10V DC	88	12 to 24	RS-485 (1)	Modbus RTU Modbus TCP/IP	—	8647N11	000000
Relay (4)	Digital	10 amp @ 250V AC	Transistor/Analog (8)	Analog Digital	PNP/NPN	24	0V DC to 10V DC	88	12 to 24	RS-485 (1)	Modbus RTU Modbus TCP/IP	Wi-Fi, Bluetooth	8647N12	000000

Expansion Modules

Add expansion modules to these PLCs when your system needs more inputs and outputs or new functionality. All modules have an LED status indicator to show the device is powered and running.

Increase the number of inputs and outputs you can control with the PLC. These modules send and receive digital signals, such as on-off, so you can integrate devices such as limit switches and lights. They also receive analog signals from devices that send variable data, such as humidity sensors.

PWM—Modules with PWM outputs are ideal for motor speed controls and other devices that require fast, precise switching because the outputs have no moving parts.

RTD Input Type—Modules with RTD inputs trigger actions based on temperature readings, such as opening a valve when a threshold is reached.

Outputs						Inputs
Type (No. of)	Development Board Signal (No. of)	Signal Type	Max. Current @ Voltage	Max. Freq., kHz	Analog Signal	Type (No. of)	Signal Type	Digital Signal	Transistor Voltage, V DC	Analog Signal	RTD Type	Operating Voltage, V DC		Each
Relay (8)	—	Digital	6 amp @ 250V AC	—	—	Analog/Transistor (16)	Analog Digital	PNP/NPN	24	0V DC to 10V DC	—	12 to 24	8647N14	0000000
Relay (8)	—	Digital	3 amp @ 24V DC	—	—	Analog/Transistor (16)	Analog Digital	PNP/NPN	24	0V DC to 10V DC	—	12 to 24	8647N15	000000
Analog (2)	PWM (4)	Analog, Digital	0.1 amp @ 24V DC	10	0V DC to 10V DC, 4 mA to 20 mA	RTD (2) Analog (4)	—	—	—	0V DC to 10V DC, 4 mA to 20 mA	Pt100, Pt1000	12 to 24	8647N16	000000


Shown Installed


Shown Installed


Shown Installed


Shown Installed