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Modbus Slave TCP/IP
Human-Machine Interface and SCADA. topic
Posted by wisnu on 5 March, 2009 - 3:24 am
Dear All,
I found a problem when i try to commnunicate Citect Scada with AB PLC 1800 over Modbus TCP/IP. AB PLC act as Modbus Master and Citect as Modbus Slave. I am using MBSlave TCP on Citect, my configuration is according Citect's KnowledgeBase Q2015.But I Still can't communicate. And why can't I find MBSlave Parameter on Citect.ini?
Thank's


Posted by Ian Finlay on 1 July, 2009 - 2:12 am
You should probably look at MODNET rather than MBSlave. MBSlave was only meant for serial comm's. Modnet is for TCP/IP.

As far as ssetting up citect.ini protocol parameters, you must create the section header yourself
[MODNET]

to know what parameters to use for each driver, go to help>driver Help>[driver name]>Parameters

(suggest you also try using the CiConfig utility makes it easier to edit the citect.ini)

Ian Finlay
Freelance Citect/C++/VB/Embedded Engineer
www.earthed.net.au


Posted by Rengel on 21 August, 2009 - 8:18 am
Hello, I'm not sure if it is possible to use the Standard Modnet Driver as Slave Driver.

Kind Regards
Rengel


Posted by Nathan Slider on 16 September, 2009 - 9:39 am
There is an MNSlave Driver available which is just that, Modnet Slave, but you will need to contact Citect Support to get this one.

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