It is sometimes useful to be able to connect the ACE PLC to an RS485 network.

As examples:

  • connect hundreds ACE PLC on the same RS485 network
  • connect a HMI to a ACE PLC far away from the each other where the RS232 is not enough (10 meters about)
  • connect an ACE PLC to an external sensor or device: Small display, variable-frequency drive, smart sensor,..

The ACE 1430 and 1450 already have a built-in RS232/485 port, but for the others a small RS232 to RS485 signal converter must be added. It’s not the ideal solution, but it can be useful as our industrial ACE are very powerful and cheap.

This converter is cheap and reliable. You will find it here: https://aceautomation.eu/product/rs232-to-rs485-converter/

  • It has on one side a terminal board for the RS485. Only A+ and B+ need to be connected.
  • On the other side, the same type of connection as our ACE connectors for RS232 instead of the classic SUB-D9.
  • We provide with a 3M double sided adhesive

The RS232/485 converter is powered via the RS485 network. It is not necessary to power it.

RS-232
RS-485
ACE 1 <> 4 CONVERTER A+
ACE 2 <> 3 CONVERTER B-
ACE 3 <> 1 CONVERTER