QnA Series - Online edit and comms

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I will work on Q2A series Mitsubishi which seems to be around 20 years old.

And wondering if I can connect directly to RS-422 (25 pin D sub) (picture below) port on the CPU module? As far as I understand from the manual this port can be accessed only by a Mitsubishi programming module (Q6CPU)?

The only alternative I can see from the I/O Devices is that there is A1SJ7QC24 which I assume is used for HMI, in this case I could possibly connect to RS-485 or RS-232C channel (depending which one is free).

My question is by connecting to QC24 module would I be able to make my modifications online?




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You can connect to to rs422 port of the cpu but you will need a SC09 cable.

if you don’t have one you could connect via de QC24 module but you might have to change the dipswitches on the module and reset the cpu after.




Edited by Gambit

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