User Manual HTS801
Humidity and Temperature Sensor for High Humidity and Chemically Polluted Conditions | 43
Registers ...
... with these
assigned measurands ...
... map to registers ...
... mirrored from
source registers
Dec
Hex
Meas.
Unit
Type
Dec
Hex
Dec
Hex
Function code 0x10
Function code 0x03/0x04
6001
0x1770
RH
%
FLOAT32
3001
0xBB8
1021
0x3FC
FLOAT32
3002
0xBB9
1022
0x3FD
6002
0x1771
T
°C
FLOAT32
3003
0xBBA
1003
0x3EA
FLOAT32
3004
0xBBB
1004
0x3EB
6003
0x1772
Td
°C
FLOAT32
3005
0xBBC
1105
0x450
FLOAT32
3006
0xBBD
1106
0x451
6004
0x1773
Tw
°C
FLOAT32
3007
0xBBE
1109
0x454
FLOAT32
3008
0xBBF
1110
0x455
6005
0x1774
T
°F
FLOAT32
3009
0xBC0
1005
0x3EC
FLOAT32
3010
0xBC1
1006
0x3ED
6006
0x1775
Td
°F
FLOAT32
3011
0xBC2
1107
0x452
FLOAT32
3012
0xBC3
1108
0x453
6007
0x1776
RH
%
INT16
3013
0xBC4
4011
0xFAA
6008
0x1777
T
°C
INT16
3014
0xBC5
4002
0xFA1
6009
0x1778
T
°F
INT16
3015
0xBC6
4003
0xFA2
3016
0xBC7
65536
0xFFFF
3017
0xBC8
65536
0xFFFF
3018
0xBC9
65536
0xFFFF
3019
0xBCA
65536
0xFFFF
3020
0xBCB
65536
0xFFFF
Tab. 10
Custom Modbus map example
6.2.4. Device Status Indication
If a critical error occurs, all Modbus values are set to NaN (according to IEEE754 for data type FLOAT32) or to
0x8000 (INT16). It is possible to read out all status and error information via Modbus register 609 (0x260). Errors
are displayed in bit-coded form. If an event is present, the corresponding bit is set to 1.
Measured values outside the measureing range are limited with the corresponding limit value.
Error Bits Description
Recommended action
Bit 0 RH sensor shortcut
Return the unit to the E+E Customer Service
Bit 1 RH sensor broken
Return the unit to the E+E Customer Service
Bit 2 T sensor shortcut
Return the unit to the E+E Customer Service
Bit 3 T sensor broken
Return the unit to the E+E Customer Service
Bit 4 PT1000 sensor shortcut (T17 and T28 only)
Return the unit to the E+E Customer Service
Bit 5 PT1000 sensor broken (T17 and T28 only)
Return the unit to the E+E Customer Service
Bit 6 Tube heater failure
Return the unit to the E+E Customer Service
Bit 7 RH sensor contamination (little bit)
Clean the RH sensing element
Bit 8 RH sensor contamination (dirty)
Clean the RH sensing element
Bit 9 RH sensor contamination (very dirty)
Return the unit to the E+E Customer Service
Bit 10 Parallel capacity misconfiguration
Return the unit to the E+E Customer Service
Bit 11 Analogue voltage output 1 shortcut
Check wiring
Bit 12 Analogue voltage output 2 shortcut
Check wiring
Bit 13 Analogue current output 1 open loop
Check wiring
Bit 14 Analogue current output 2 open loop
Check wiring
Bit 15
Tab. 11
Device status indication