Vaisala MGP260 Series, User Manual, Page: 85 / 92

Register
number
(decimal) Address
(hexade
cimal) Register description Data format Bitmask
521 0208
hex
CH
4
measurement
status
16-bit signed
integer 0000
hex
: Unsupported
0001
hex
: Reading is not
reliable
0002
hex
: Under range
0003
hex
: Over range
0004
hex
: Noisy
0005
hex
: Value locked
0006
hex
: Calibration expired
0007
hex
: Sensor failure
0008
hex
: Measurement not
ready
522 0209
hex
CH
4
measurement
status (dry basis)
16-bit signed
integer
523 020A
hex
CO
2
measurement
status
16-bit signed
integer
524 020B
hex
CO
2
measurement
status (dry basis)
16-bit signed
integer
525 020C
hex
H
2
O measurement
status
16-bit signed
integer
526 020D
hex
T
df
measurement status 16-bit signed
integer
527 020E
hex
T
s
measurement status 16-bit signed
integer
528 020F
hex
Device status 16-bit signed
integer 0000
hex
: Critical failure
0001
hex
: Error
0002
hex
: Warning
0003
hex
: Notification
529 0210
hex
Clear error log: the error
log is cleared if 1 is
written, other values are
ignored. Register always
reads as 0.
Function
Table 17 Error codes in register 0200
hex
(status code low)
Bitmask Error message Severity
0000
hex
Firmware checksum mismatch. Critical
0001
hex
Device settings corrupted. Critical
0009
hex
Infrared source temperature too high. Error
0010
hex
Infrared source failure. Error
0011
hex
Infrared source failure. Error
0012
hex
Supply voltage out of range. Error
0013
hex
Internal voltage out of range. Error
Appendix A – Modbus reference
83
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