MVR-300™ Refrigerant Gas Detector
P/N: 6203-9000 Version 1
39
Reg
Addr
Name
Description
Data
Type
Def Val
R/W
2010
Relay 2 Fault
Indication
0 = Relay 2 indicates high alarm
only
1 = Relay 2 indicates high alarm
and fault condition
Note: Setting only has an effect
if the Modbus priority flag is set
Unsigned
integer
0
R. W if
un-
locked
2011
Alarm Latching
Behavior
0 = Alarms automatically reset
1 = Alarms must be
acknowledged
Note: Setting only has an effect
if the Modbus priority flag is set
Unsigned
integer
0
R. W if
un-
locked
2012
Buzzer disable
0 = Buzzer normal operation
1 = Buzzer disabled
Note: Setting only has an effect
if the Modbus priority flag is set
Unsigned
integer
0
R. W if
un-
locked
2017
Calibration Gas
Level PPM
Level of gas being applied
during calibration
Unsigned
integer
Unit
dependent
R. W if
un-
locked
8.9.4
Input Status Flags
Input status flags are readable (using function code 02).
Reg Addr
Name
Description
Data
Type
Def
Val
3000
Gas Low Alarm
Flag
0 = No low alarm state
1 = Low alarm active or latched
Boolean
0
3001
Gas High Alarm
Flag
0 = No high alarm state
1 = Low alarm active or latched
Boolean
0
3002
Saturation Overflow
0 = Gas level less than or equal to full scale
range
1 = Gas level exceeds full scale range
Boolean
0
3003
Saturation
Underflow
0 = Gas level greater than or equal to 0 ppm
1 = Gas level underflow condition
Boolean
0
3004
Startup
Detector is in startup. No valid gas level or
outputs
Boolean
0
3005
Detector Offline
Detector not reporting gas level or generating
alarm conditions
Boolean
0
3006
Detector Fault
The detector is reporting a fault which prevents
valid gas level or output generation
Boolean
0
3007
Relay 1 State
0 = Relay de-energized
1 = Relay energized
Boolean
0
3008
Relay 2 State
0 = Relay de-energized
1 = Relay energized
Boolean
0
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