But this time, they wouldn’t share L1. Instead, each would be supplied by L1a, L1b, L1c, and L1d. Your first step in troubleshooting digital input modules is to verify the power sources: Identify ...

Hardware Description The Corona input module is seen in Figure 2 with the system diagram in Figure 3 . Figure 2. The Corona reference design board, (MAXREFDES12#). Figure 3. Diagram of the ...

Higher amperage relay output modules and an 8-point input simulator module are now available from AutomationDirect for the Click series stackable micro brick PLCs. The Click C0-04TRS-10 ($54.00) is a ...

If they do, the problem is on the processor side of the input module. Next, watch the PLC logic for a corresponding change. If it doesn't happen, then the signal isn't making it from the input module ...