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Old November 13th, 2012, 12:36 AM   #1

Yna is offline
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Join Date: Jul 2012
Location: Metro Manila
Posts: 37
Vijeo Citect HMI Error

Hi guys!

I encountered an error on vijeo citect HMI. The system is configured as main and standby HMI.

I have this error on standby HMI, "ERROR 0x21 ON OPENING 'PORT1_BOARD2_SBY' FOR PROTOCOL 'MODNET' ". This error occurs if I run the the citect on first attempt. Upon closing the error dialog box and re-running the citect on the second time, the error is no longer available and I can run the citect....but if I exit again and run the citect, the error occurs again. I have to close it again and rerun the citect.. Same configuration both main & standby, but error occurs only on standby. How can I fixed it? Thank you in advance..
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Old January 3rd, 2013, 03:48 AM   #2
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IainH is offline
Join Date: Jul 2008
Location: Sussex
Posts: 44
It may not be relevant, but I have had the same error number when starting a project using MODBUS protocol and it was due to the serial port specified for MODBUS not being available.

Can you check that the port you are using is available and free before you start the project?

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