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Hi everybody!
I am working a test with the Siemens S5 and S7 interconnection. We have an existing S5 CPUs (with ET200X as the interfacing module to the S7 CPU). All the S5 CPUs act as a remote IO and are connected (daisy chain) to a S7 CPU 315DP (the S5 CPUs are programmed independently). This 315DP is then connected to a COROS OP35 HMI. The function of the 315 DP is to connect all RIO S5 CPU to have
a communication with the COROS OP35. I tried to connect an additional rack (with ET200M, 1 analog input module and 1 analog output module to control a certain valve. A pressure transmitter is connected to the analog input module). The 315DP CPU has two ports so I put the wire to the second profibus port. The problem is, some of the networked or chained S5 CPUs became "invisible" (or can not be seen in the network) when I connect the ET200M in the CPU 315DP via profibus (when you are ONLINE). The "invisible CPUs" will again be seen if I detach my ET200M in the chain. I checked my addresses but they are all correct.
Did I connect it the right way? Any help will be greatly appreciated.
P.S. - 1 S5 CPU and 1 ET200X work in pair. We have 8 S5 CPUs with ET200X connected in the CPU315DP via profibus (daisy chained).
I am working a test with the Siemens S5 and S7 interconnection. We have an existing S5 CPUs (with ET200X as the interfacing module to the S7 CPU). All the S5 CPUs act as a remote IO and are connected (daisy chain) to a S7 CPU 315DP (the S5 CPUs are programmed independently). This 315DP is then connected to a COROS OP35 HMI. The function of the 315 DP is to connect all RIO S5 CPU to have
a communication with the COROS OP35. I tried to connect an additional rack (with ET200M, 1 analog input module and 1 analog output module to control a certain valve. A pressure transmitter is connected to the analog input module). The 315DP CPU has two ports so I put the wire to the second profibus port. The problem is, some of the networked or chained S5 CPUs became "invisible" (or can not be seen in the network) when I connect the ET200M in the CPU 315DP via profibus (when you are ONLINE). The "invisible CPUs" will again be seen if I detach my ET200M in the chain. I checked my addresses but they are all correct.
Did I connect it the right way? Any help will be greatly appreciated.
P.S. - 1 S5 CPU and 1 ET200X work in pair. We have 8 S5 CPUs with ET200X connected in the CPU315DP via profibus (daisy chained).