ABB Videographic Recorder Not working with Modbus TCP/IP
Hi. I'm trying to connect to a vidrographic recorder abb sm3000 via modbus tcp/IP, in the device we setup the address that will connect to the instrument, however, on the other side we need a modbus device address, this is not part of the configurations of the sm3000, does this has a default address?
I will apreciate any help!
I will apreciate any help!
Asked 2 years ago
Answers
0
With device address you mean Unit address in Modbus/TCP spec
you can this here
http://www.modbus.org/docs/Modbus_Mes...
page 22/23
On TCP/IP, the MODBUS server is addressed using its IP address; therefore, the MODBUS Unit Identifier is useless. The value 0xFF has to be used.
And if you want to archive you data, I recommend changing the CF Card in a frequently manner (i.e. quarterly)
Due the almost constant write the flash memory will wear out. I know this from my own experience
you can this here
http://www.modbus.org/docs/Modbus_Mes...
page 22/23
On TCP/IP, the MODBUS server is addressed using its IP address; therefore, the MODBUS Unit Identifier is useless. The value 0xFF has to be used.
And if you want to archive you data, I recommend changing the CF Card in a frequently manner (i.e. quarterly)
Due the almost constant write the flash memory will wear out. I know this from my own experience
Answered 2 years ago
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