Problem accessing Mitsubishi A-Series CPU

Discussion of configuring and troubleshooting communication to PLC's or other devices using iX Developer.
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philip.joebstl
Posts: 26
Joined: Tue Oct 09, 2012 12:56 am

Problem accessing Mitsubishi A-Series CPU

Post by philip.joebstl »

Hallo,

I'm trying to connect the iX T4A - Panel to a Mitsubishi A-Series CPU (CPU-Port). Communication settings should be correct, we tried with both COM-Ports and each of them with RS232 and RS422, and we also deleted the build files and rebuild after setting the communication. But still there is the connection error showing up.

Do you have any ideas to try, or is the driver itself not working correctly?
MELSEC A-Series ComSettings.png
MELSEC A-Series ComSettings.png (34.66 KiB) Viewed 7762 times
Best regards,
Philip Joebstl

mark.monroe
Posts: 824
Joined: Tue Mar 13, 2012 9:53 am

Re: Problem accessing Mitsubishi A-Series CPU

Post by mark.monroe »

You should take a look at this forum post. About the only way to debug such problems is to sniff the serial port traffic on the line. You should see traffic coming from the HMI and whether or not the Controller is responding to those requests.
Best Regards,
Mark Monroe

Beijer Electronics, Inc. | Applications Engineer

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