Velocio PLCs | McMaster-Carr

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24 Products

About PLCs

Select the sensors, switches, and actuators in your setup and we'll guide you to compatible PLCs.

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.

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.

PLCs with Transistor Inputs

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

PLCs with Transistor and Analog Inputs

	Outputs				Inputs
Max. No. of Inputs/Outputs	Type (No. of)	Signal Type	Transistor Type	Max. Current @ Voltage	Type (No. of)	Signal Type	Transistor Type	Transistor Voltage	Operating Voltage Range	Serial Industry Designation (No. of)	Communication Protocol		Each
0-10V DC Analog Input Signal
9	Transistor (3)	Digital	NPN	0.3 A @ 30 V DC	Transistor (3) Analog (3)	Analog, Digital	PNP	3-30V DC	5.1-28V DC	RS-232 (1)	Modbus RTU	1394N21	000000
4-20 mA Analog Input Signal
9	Transistor (3)	Digital	NPN	0.3 A @ 30 V DC	Transistor (3) Analog (3)	Analog, Digital	PNP	3-30V DC	5.1-28V DC	RS-232 (1)	Modbus RTU	1394N22	00000
27	Transistor (12)	Digital	NPN	0.3 A @ 30 V DC	Transistor (12) Analog (3)	Analog, Digital	PNP	3-30V DC	5.1-28V DC	RS-232 (1)	Modbus RTU	1394N23	000000
36	Transistor (12)	Digital	NPN	0.3 A @ 30 V DC	Transistor (12) Analog (12)	Analog, Digital	PNP	3-30V DC	5.1-28V DC	__	Modbus RTU	1394N24	000000

PLCs with Transistor and Thermocouple Inputs

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

PLCs with Transistor, Analog, and Thermocouple Inputs

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

DIN-Rail Mounting Brackets

Shown in Use

For DIN Rail Ht., mm	Ht.	Wd.	Dp.		Each
35	2 1/2"	2 1/2"	1/2"	1394N102	00000

Communication Cords

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

RS-232 Terminal Block × DB9 Socket
Lg., ft.	Shielding	Shield Type	Communication Protocol		Each
5	Double Shielded	Braid, Foil	Modbus RTU	1394N103	000000

HMIs

Shown Mounted (Enclosure Not Included)

Tap into simple, intuitive machine control and monitoring from a single touchscreen display. These HMIs come with software designed specifically to integrate with your PLC, so you don’t need to spend time or money on the complex setup and extra equipment of industrial PCs. The touchscreen activates with firm pressure, so you can use them while wearing gloves. They also work with a stylus, screwdriver handle, and other hard objects.

The manufacturer’s free PC software guides you through communication setup and screen design using drag-and-drop tools. Preview your layout, test navigation, and catch design errors before you connect to any equipment. When you’re ready, transfer your setup to the HMI with a USB cord, memory card, or Ethernet cord.

All of our HMIs support the PLCs we currently offer, plus those from systems such as Allen-Bradley and Siemens. Use the number of supported drivers to gauge compatibility. If your PLC is common, HMIs with fewer drivers likely support it, so you won’t need to pay for extra compatibility. To view the full list of supported PLCs, barcode scanners, and other devices, click on a part number and select “Product Detail.” Drivers for specific PLCs save you setup time. However, you can always use a standard protocol such as Modbus RTU or EtherNet/IP—just expect more manual setup.

When mounted in an enclosure, the front of these HMIs is IP rated for protection against dust and light washdowns. Maximum screen brightness is measured in candelas per square meter (cd/m²). 400 cd/m² is similar to an office monitor, 800 cd/m² suits bright factory floors, and 1200 cd/m² stays visible even in direct sunlight.

Add a screen protector (sold separately) to take the hits and scratches before your HMI does. They’re tested to meet ASTM D3363 7H standards for hardness, so they’ll stand up to sharp objects. A chemical-resistant coating also withstands grease, oil, and cleaners.

HMIs													Screen Protectors
Diagonal Screen Size	No. of Supported Communication Drivers	Screen Resolution	Max. Screen Brightness, cd/m²	Serial Industry Designation (No. of)	Connection Type (No. of)	Memory Type (Size)	Housing Material	Operating Temp. Range, °F	Environmental Rating	Specifications Met		Each		Each
4.3"	45	480 × 272	400	RS-232/RS-422/RS-485 (1)	USB-A 2.0 (1) USB-C 2.0 (1)	Flash (128 MB) SDRAM (128 MB)	Plastic	0° to 130°	IP65	CE Marked	2305N29	0000000	8902N13	00000
7"	45	1024 × 600	450	RS-232/RS-422/RS-485 (1) RS-485 (1)	Ethernet RJ45 (1) USB-A 2.0 (1) USB-C 2.0 (1)	Flash (128 MB) SDRAM (128 MB)	Plastic	0° to 130°	IP65	CE Marked	2305N32	000000	8902N18	00000
10.2"	45	1024 × 600	450	RS-232/RS-485 (2)	Ethernet RJ45 (1) USB-A 2.0 (1) USB-C 2.0 (1)	Flash (128 MB) SDRAM (128 MB)	Plastic	0° to 130°	IP65	CE Marked	2305N33	000000	8902N24	00000
15.6"	45	1920 × 1080	300	RS-232/RS-485 (1)	Ethernet RJ45 (1) USB-A 2.0 (1)	Flash (4 GB) SDRAM (256 MB)	Aluminum	0° to 130°	IP65	CE Marked	2305N34	000000	8902N32	00000