Configuring S7 1200 PLC as Modbus server using MB_SERVER instruction. Demonstrating parameter configuraion and testing with Modbus client application. #Modbus #TCP #S71200 #MB_SERVER #Siemens #PLC
Hey, really appreciating making and sharing these instructions! I would kindly ask if you have tried to establish a Modbus TCP Server on an ET200SP PLC.
Thanks.. By your process, i succesfully create this.. I need your advice.. I have some output in DB block.. Like db100.dbd0.. How can i move this value in modbus block
in this example the length is 50 registers and modbus address staring from 40001, i just want to know that where we can define the starting modbus address and length of modbus addresses. if i want my starting modbus address is from 40010 then where i can define that address in modbus server.
you have to start writing in your plc logic from 40010 and ignore from 40001 to 40009, as a modbus server you cant control this, only as a modbus client
How do you know that address of first registers in PLC is 40001 ? If you have second MB_SERVER block, what would be staring address for registers in second block? Thanks
I have 4 devices of plc s7 1200 and in this devices the program developed with modbus db block and its protected .It is read only how could i connect these devices to the tia portal i need to read and write holding address ? Please help me how could i connect modbus TCP ip devices to tia portal ? I need to develop scada using these holding addresses please help me anyone ? If i have communication module of rs 485 could i get values directly from that cm module ?
@@StableAutomation sir without asking password is there any atlernative to get holding registers actually i need to develop scada for this i want those modbus addresses. Using opc server can i get addresses without password?
@@Santhoshkumar015 then one of the possible way it to check each data on modbus scanner and manually check and verify individual values with plant data.
@@StableAutomation ok sir i already checked data I have data addresses now how can I use these addresses in tia wincc rt advanced along with pc station ?
