AC unit operation using PLC and all alarms to communicate with SNMP protocol to ethernet switch

1. All alarms and status in shelter (either from PLC or direct from equipment) need to be communicated to customer ethernet switch by SNMP protocol.
2. Below are the alarms / status required to be communicated:

a. ON/OFF Status of two Main Incomer Breakers
b. Surge Trip Status
c. ON/OFF status of AC unit’s breaker
d. Trip Status of AC unit’s breaker
e. Power supply unit failure status
f. Front & back door open/close status
g. Shelter temperature monitoring & high temperature alarm
h. Alarms & Status from AC units

Refer Attachment # 1 and 2 for above

3. Sequence of operation for the AC unit in shelter is available in attachment # 3.
4. PLC need to be programmed to operate AC units and shelter internal lights as per the sequence of operation.
5. Above mentioned alarms/status need to be available as inputs to PLC. Required alarms and status to be taken for sequence of operation.