Connect HMI DELTA with PLC IDEC via RS 232C/485

[gide007]

I'm trying to establish communication between an HMI DELTA (DOP-B07E515) and a PLC IDEC (FC6A-D16R1CEE) via the RS-232C/485 module (FC6A-SIF-52). My current settings are as follows:

HMI IP: 192.168.0.2
PLC IP: 192.168.0.95
Baud rate: 115200
Data bits: 7
Parity: Even
Stop bits: 1

For RS-485:
- DP9 pin 1 is connected to module port A1.
- DP9 pin 6 is connected to module port B1.

For RS-232C:
- DP9 pin 2 is connected to module port RD1.
- DP9 pin 3 is connected to module port SD1.

However, I'm encountering errors:
- For RS-485, HMI warning: "COM2 Station 1: Communicate error 3."
- For RS-232C, HMI warning: "COM2 Station 1: Communicate error 2."

Could you please help me identify what I might be missing or if there are alternative options to connect the HMI DELTA (DOP-B07E515) and PLC IDEC (FC6A-D16R1CEE)?

 

[goghie]

There is no way you can do Half-Duplex RS485 with that speed. I would try with 9600, E, 7, 1. Also you I advise you to increase communication timeout on HMI side. For RS485, if i remember good, should be connected pins 2, 1 and 7 on MiniDIN connector.

 

[gide007]

Thank you, sir. I've identified the issue; the PLC station and slave numbers (constants) need to be the same.