MAC E200 to QJ71C24N-R2

[neildobson]

Can anyone help me with comm settings to enable me to connect an E200 to the Q-series RS232 module? I had the terminal working for a while but after fiddling with the baud rate I can no longer get any comms. I need to reduce the baud rate to 19200 because of the 20m long cable length. I see there is a switch settings dialog in GXDEV I/O configuration but when I adjust parameters here it seems to affect my programming port connection. Do I select the CPU protocol or C24 protocol in the E-terminal software? Any have example switch settings? Any help would be most appreciated.

[waynes]

If you are connecting to the cpu, select cpu protocol, otherwise if you are connecting to the c24 card, select c24 protocol. I am assuming that you are connecting to the c24 card. This manual should help you out. MELSEC_A___Q_CPU___C24_MA00549.pdf

[waynes]

OK, I got the manual for the C24 card. Here it is. QJ71C24__R2___Basic__User_Man_SH_080006_D.pdf

[waynes]

OK, now go to chapter 4.5/ page 4-11/ pg. 87 of 314. The settings that you need to set in GX are listed there. Hope this helps.

[neildobson]

Thankyou, after studying the manuals and a bit of experimentation i've got it working. Here are the settings for future reference: E200 terminal configured with default C24 protocol settings: - RS232, 19200, N, 8, 1 C24 module settings: -Baud rate:19,200 = 07H (bits 8-15) -bit 0:OFF - independent -bit 1:ON - 8 data bit -bit 2:OFF - no parity -bit 3:OFF - odd parity (ignored) -bit 4:OFF - 1 stop bit -bit 5:ON - sum check on -bit 6:ON - write during run enabled -bit 7:OFF - setting modification prohibited Setting = 62H Protocol Setting: -Format 5 = 05H Configuration in GX Developer: From PLC Parameters, I/O assignment, Switch setting, enter the following for the communications module: Switch 1:0762 Switch 2:0005 Job done.