siemens plc s7 400 hardware configuration | S7 300 PLC Hardware configuration online status show

Описание: #plcpanel
#plc_programming
#siemensplc
#s71200
#electrical
#automation

queries
1. What is the standard slot arrangement for Siemens S7-400 CPU and I/O modules?
2. How do you check if the physical module order matches the hardware configuration in Step 7/TIA?
3. What does the SF (System Fault) LED indicate on an S7-400 CPU?
4. What does the BF (Bus Fault) LED indicate on an S7-400 CPU?
5. How do you verify the correct power supply module is working in S7-400?
6. What happens if two modules are assigned overlapping I/O addresses in the hardware configuration?
7. How can you diagnose hardware mismatch faults using the CPU diagnostic buffer?
8. Why is it important to select the exact CPU part number in the HW Config catalog?
9. How do you troubleshoot a PROFIBUS communication error in S7-400 hardware configuration?
10. What are the steps to check and correct wrong MPI/DP addresses in the hardware configuration?
11. How can missing hardware catalog updates cause configuration errors in S7-400 projects?
12. What does a flashing STOP LED on an S7-400 CPU typically indicate in terms of hardware config?
13. How do you confirm that a DI/DO/AI/AO module is correctly parameterized in HW Config?
14. What tool in SIMATIC Manager helps to view detailed module diagnostics?

15. How do you check whether the terminating resistor setting on a PROFIBUS DP module is correct?

16. What is the effect of inserting a module in the wrong rack slot during configuration?

17. How do you identify firmware mismatch issues between hardware modules and the project configuration?

18. What steps do you take if the CPU does not accept the hardware configuration download?

19. How do you differentiate between a wiring issue and a hardware configuration error in S7-400?