INFICON HLD6000 Refrigerant Leak Detector Interface Description - Manual (Page 19)

LD Protocol 19
3.3 Status Word
Status word bit no. Meaning
Bit 0 Device state:
0 = Runup
1 = Standby
2 = Measure
3 = Calibration internal
4 = Calibration external
5 = Proof
6 = Not used
7 = Not ready
Bit 1
Bit 2
Bit 3 not used
Bit 4 not used
Bit 5 Still pending device warning. Is 1 even if
warning is confirmed via command "Clear
error" (Command No. 5) as long as
reason for warning still exists.
Bit 6 Sniffer Key
Bit 7 not used
Bit 8 PLC Output Change
Bit 9 Setpoint exceeded
Bit 10 Actual valid setpoint:0=Setpoint 1,
1=Setpoint 2
Bit 11 Value changed via interface command
Bit 12 Light barrier
Bit 13 Unconfirmed device warning
Bit 14 Device error
Bit 15 Syntax/Command error