S7 1200 as Modbus TCP Server using MB_SERVER Stable Automation 1 year ago S7 1200 as Modbus TCP Server using MB_SERVER 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 .