Field Notes
The 6AG1531-7MH00-7AB0: Wire-break diagnostics throw a red LED per channel and a diagnostic alarm, but only on 4-20 mA loops—0-20 mA won't flag a broken wire. The module also supports limit-value alarms (two upper, two lower per channel) and overflow/underflow detection. Isolation is tested at 707 V DC between channels and backplane; good for industrial environments with mixed-voltage wiring. The RUN LED is green, ERROR is red, and there's a separate red LED for both module diagnostics and channel diagnostics. No MAINT LED, no oversampling, no isochronous mode—this is a straightforward integrating analog input.