50 Classic Questions About Siemens S300 PLC: Learn Through Examples!
1: How to avoid “communication failure” messages when using CPU 315F and ET 200S? When using CPU S7 315F, ET 200S, and fault-tolerant DI/DO modules, you will call the fault-tolerant program OB35. Moreover, you have accepted all default monitoring time values and are willing to receive “communication failure” messages. OB 35 is set to 100 … Read more