Honeywell VC4 User Manual page 139

4-point continuous monitor
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Software Rev. Examples (Major/Minor/VIP):
          01/07/FFFF - Rev. 1.07
          03/0C/FFFF - Rev. 3.12
          03/0C/0066 - Rev. 3.12-102
          04/12/017A - Rev 4.18-378
Get Unit Status - 0x31
This command requests the current condition or status of the slave. This command allows the
master to inquire about the general operating condition of the system.
Command packet to instrument:
          Command Code (0x31) - 1 byte
Response packet from instrument:
          Command Code (0x31) - 1 byte
VC4™ Date - 2 bytes
VC4™ Time - 2 bytes
          General Status - 2 bytes
                    bit 0: Current Operating mode
                              0 = Not monitoring
                              1 = Monitoring
                    bit 1: Keyboard Lockout state
                              0 = Disabled
                              1 = Enabled
                    bit 2: Key pad status
                              0 = unlock
                              1 = locked
                    bit 3: Chemcassette™ counter status
                              0 = Counter disabled
                              1 = Counter enabled
                    bit 4: 2mA Fault operation
                              0 = Feature disabled
                              1 = Feature enabled
VC4™
139
User Manual

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