try to delelope communication between profibus dp and modbus

mjoubert said:

check this link

http://www.moxa.com/newsletter/connection/2007/05/MOXA_Protocol_Converter.htm

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kraj said:

hello


is there is some solution on it

i have siemense plc on one side and n/w used is profibus
which is a master one
and on other side there is modicon plc which is slave n/w used is modbus

i am trying to fecth data from slave to master

how can it possible


thanking you

raj

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dchartier said:

Hello raj;
If your Siemens PLC is of the S7-300 family, you could setup a CP 341 (serial comm processor) as a Modbus master and request data from your Modicon Slave.
If it is a S7-400, then you could use the CP 441-2 for the same purpose.
Here you can download the manual for the Modbus Master driver manual:
http://support.automation.siemens.com/WW/view/en/1220184
This FAQ mentions all drivers that can be loaded in the CP 341/CP 441-2, so you can select the correct part number:
http://support.automation.siemens.com/WW/view/en/1918186
With this information you can decide if the Siemens driver is a solution for you.
Hope this helps,
Daniel Chartier

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have siemense plc on one side and n/w used is profibus
which is a master one and on other side there is modicon plc which is slave n/w used is modbus

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one more thing
modbus n/w is on tcp/ip

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manmeetvirdi said:

Hi there
Will the modbus communication take over ethernet? If so then you just need a ethernet cable running between two CPU's. If not then you need CP441 as mentioned by dchartier.

Cant make it from your statements what you have !
courtesy:


and


not on RTU??

confusing....can you go clear?

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