Power Supply supervision in TB 840a
Power supply supervision
How can i get the alarms for SA / SB power supply failure for TB840 in 800Xa alarm list
I think its not possible to get a HWStatus from TB840, as its not an active module in hardware structure. However you could try "AllUnitStatus" directly under AC800M and look for devicespecific error codes. We could manage to get some error codes specific to TB840 to give a general failure alarm; but not specifically SA / SB alarm.