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antwan_jacoup
Junior
Joined: 03 May 2013
Posts: 13
Location: usa
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 Posted: 14/02/2017 14:47 Post subject: problem with vijeo citect not write to variable |
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I use Vijeo citect with Modicon M340 with Ethernet ( Modbus/TCP )
Citect read all variable ( Bool - Int ) but didnot need to write any variable . can any one help me |
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zolly
Junior 2
Joined: 08 May 2016
Posts: 46
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| Posted: 14/02/2017 19:18 Post subject: Re: problem with vijeo citect not write to variable |
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| antwan_jacoup wrote: | I use Vijeo citect with Modicon M340 with Ethernet ( Modbus/TCP )
Citect read all variable ( Bool - Int ) but didnot need to write any variable . can any one help me |
By default, you must login to write a variable.
Modify the parameter [LAN]AllowLegacyConnection.
[LAN]SecureLogin=0
After created user and after login you usually have the right to write and modify registers.
If all above has been done and not success check Citect.ini parameter to see if it has any effect:
[IOServer]
WatchdogPrimary=1
If you need to slow down the polling to the IODevices, then simply open your IODevice form for the specific device, and set Cache=TRUE and CacheTime = Xms
If you continue to have problem then I would suggest setting up Wireshark to capture your Modbus packets to see where the error could be.
Have you installed the latest drivers..? |
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