The JVL MAC00-EM4 Modbus expansion module allows user to communicate to the motor over TCP/IP networks by connecting  over port 502.  The JVL implementation also supports Modbus UDP which is faster but with no connection control.

Specifications:

• 8 pin connector for I/O.  Total 4x M12.
• Control and setup through Modbus TCP/IP.
• Modbus TCP/IP input and output.  Switch built-in.
• For built-in PLC with (MAC400-3000) or HWI for MAC050-141 etc.
• 1 digital input for enable, limit, etc.
• 1 analogue input for zero search and adjustment etc.
• 1 digital opto-isolated output up to 15mA for In Position, Error, etc.
• IP67 Protection.
• RS232 interface.

Modbus TCP/IP or Modbus TCP — is a Modbus variant used for communications over TCP/IP networks, connecting over port 502.

The JVL implementation also supports Modbus UDP, the same protocol as ModbusTCP but transferred via UDP, which is faster, but with no connection control. It is basically a Modbus RTU without a checksum calculation as lower layers already provide checksum protection. It is protocol based on the standard TCP/IP protocols so it is applicable anywhere there is standard Ethernet available as it have no special requirements regarding the Ethernet hardware, opposite some of the other industrial Ethernet protocols. Further information about Modbus TCP is available from the Modbus Organization www.modbus.org.