Status registers - DMP5 - DMP6 - DMP7 - DMP8 - DMPX

DMP Series User Guide

Document code
M212357EN
Revision
D
Language
English
Product
DMP5
DMP6
DMP7
DMP8
DMPX
Document type
User guide
Table 1. Modbus status data registers (read-only)
Register number Address Description Data format Note
513 0200hex Error status 16-bit boolean

0000hex: One or more errors active

0001hex: No errors

514 0201hex Online status 16-bit boolean

0000hex: Output locked

0001hex: Online data available

516 0203hex Error code 32-bit signed integer See Table 2.
518 0205hex Security hash 32-bit signed integer

Security hash changes when any change is made to device settings or adjustments.

520 0207hex RH measurement status 16-bit signed integer

0000hex: Status OK

0001hex: Measurement is not available

0002hex: Measurement is not reliable

0004hex: Under range

0008hex: Over range

0020hex: Value locked

0080hex: Sensor failure

0100hex: Measurement is not ready

521 0208hex T measurement status 16-bit signed integer
522 0209hex Td/f measurement status 16-bit signed integer
523 020Ahex Device status 16-bit signed integer

0000hex: Status OK

0001hex: Critical error, maintenance needed

0002hex: Error, device may recover automatically

0004hex: Warning

0008hex: Notification

0010hex: Calibration mode active

Table 2. Error codes in register 0203hex
Bitmask Error message Severity
0000hex Status OK
0001hex Temperature measurement error Error
0002hex Humidity measurement error Error
0004hex Humidity sensor failure Error
0008hex Capacitance reference error Error
0010hex Ambient temperature out of range Error
800000hex Sensor heater failure Warning