Status Registers - HMD60 - HMD65

HMD65 User Guide

Product status
Document code: M212243EN
Revision: C
ft:locale: en-US
Product: HMD60; HMD65
Document type: User guide

Table 1. Modbus Status Data Registers (Read-Only)
Register Number (Decimal)	Address (Hexadecimal)	Register Description	Data Format	Bitmask
513	0200_hex	Device status	16-bit signed integer	0000_hex: Status OK 0001_hex: Critical error, maintenance needed. 0002_hex: Error, device may recover automatically 0004_hex: Warning 0008_hex: Notification 0010_hex: Calibration mode active
514	0201_hex	Error code	32-bit signed integer	0201_hex (status code low): see Table 2
514	0202_hex	Error code	32-bit signed integer	0202_hex (status code high): see Table 3
516	0203_hex	Security hash	32-bit signed integer	Security hash changes on any change to device settings/adjustments.
516	0204_hex	Security hash	32-bit signed integer
518	0205_hex	RH measurement status	16-bit signed integer	0000_hex: Status OK 0002_hex: Reading is not reliable 0004_hex: Under range 0008_hex: Over range 0020_hex: Value locked 0040_hex: Calibration expired 0080_hex: Sensor failure 0100_hex: Measurement not ready
519	0206_hex	T measurement status	16-bit signed integer

Table 2. Error Codes in Register 0201_hex (Status Code Low)
Bitmask	Error Message	Severity
0000_hex	Status OK
0001_hex	T sensor measurement failure	Error
0004_hex	RH sensor measurement failure	Error
0008_hex	Reference capacitance failure	Error
0010_hex	Ambient temperature too high	Error
0040_hex	Device settings corrupted	Critical
0400_hex	Factory settings corrupted	Critical
8000_hex	Calibration has expired	Warning

Table 3. Error Codes in Register 0202_hex (Status Code High)
Bitmask	Error Message	Severity
0000_hex	Status OK
0001_hex	Calibration is about to expire	Info