PLC Connectivity

ProtoTwin Connect supports low-latency connectivity to industrial Programmable Logic Controllers (PLCs) and Programmable Automation Controllers (PACs).

Supported Protocols

Siemens S7

The Siemens S7 protocol supports connecting to the following PLCs:

• Siemens S7-1500
• Siemens S7-1200
• Siemens LOGO!

We plan to support connecting to PLCSIM and PLCSIM Advanced in the future.

Ethernet/IP

The CIP (Class 3) Ethernet/IP protocol supports connecting to the following Rockwell Automation PLCs:

• Allen-Bradley ControlLogix
• Allen-Bradley CompactLogix
• Allen-Bradley Micro800
• Allen-Bradley MicroLogix

The following Omron PLCs may also be configured to support Ethernet/IP communications:

• Omron NJ/NX

TwinCAT ADS

The TwinCAT ADS protocol supports connecting to the full range of Beckhoff PLCs.

• Beckhoff PLC
• Beckhoff TwinCAT 3

Omron FINS

The Omron FINS protocol supports connecting to the full range of Omron PLCs and PACs.

• Omron NJ/NX (Omron FINS)
• Omron CP/CJ (Omron FINS)

Mitsubishi MELSEC

The Mitsubishi MELSEC protocol supports connecting to the full range of Mitsubishi PLCs via the MX Component library.

• Mitsubishi MELSEC

Modbus

The Modbus protocol supports connecting to a wide range of PLCs, including the full range of Schneider Modicon PLCs and the Arduino OPTA.

• Schneider Modicon M221 (Modbus TCP/IP)
• Schneider Modicon M241 (Modbus TCP/IP)
• Arduino OPTA (Modbus TCP/IP)

OPC UA

The OPC UA protocol supports connecting to a wide range of PLCs, including CODESYS-based PLCs.

• CODESYS OPC UA