Modbus TCP IP Communicaiton in CHMI
Dear sir,
CHMI 6.0.3.2
PLC: PM554 ETH
We were trying to make communication using Modbus TCP IP with CHMI
Modbus TCP/IP Server protocol is given in PLC
PLC IP: 192.168.0.10
I have given Modbus protocol in Control structure as site ID1 and IP: 192.168.0.10
I have added a Dword signal which is configured as %MD0.0 in PLC and while checking the data it shows communication failed.
I have searched for documents while using Modbus TCP/IP with CHMI but I was unable to find one
Pls advise
CHMI 6.0.3.2
PLC: PM554 ETH
We were trying to make communication using Modbus TCP IP with CHMI
Modbus TCP/IP Server protocol is given in PLC
PLC IP: 192.168.0.10
I have given Modbus protocol in Control structure as site ID1 and IP: 192.168.0.10
I have added a Dword signal which is configured as %MD0.0 in PLC and while checking the data it shows communication failed.
I have searched for documents while using Modbus TCP/IP with CHMI but I was unable to find one
Pls advise
Asked 6 months ago
Answers
0
Hi,
Why you don't use AC500 OPC server (I think it is Codesys OPC server or similar, depends on your version)
CHMI generally is designed to use OPC connection, particularly AC800M.
I know it is described that CHMI supports Modbus TCP, and should do that, but personally I have never tried that.
0
Hi. CHMI has never support Modbus directly. You would need a controller (eg AC800 or AC500 with Modbus) or an OPC server like Kepware or Matrikon to allow access for Modbus. We have used Kepware successfully with 800xA (CHMI is a 'lite' version of 800xA anyway) as a suggestion.
by ParthibanT Rank: 42 on 9/9/2020 6:33:09 AM | Like (0) | Report
Are you using 800xA PLC connect (Master) to communicate over Modbus TCP with the PLC PM554 (Slave)?
by Amal Rank: 84 on 9/9/2020 9:13:50 PM | Like (0) | Report
CHMI Modbus TCP/IP Driver acts as a Server or Client?
PLs confirm
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