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IR#
#
IR1
0
IR2
1
IR3
2
IR4
3
IR5
4
IR6
5
IR7
6
IR8
7
IR9
8
IR10
9
IR11
10
IR12
11
IR13
12
IR14
13
IR15
14
IR16
15
IR17
16
IR18
17
IR19
18
IR20
19
IR21
20
IR22
21
IR23
22
IR24
23
IR25
24
IR26
25
IR27
26
IR28
27
IR29
28
IR30
29
IR31
30
IR32
31
1 Reserved DIs returns 0.
2 0x3FFF represents 100% output, i.e. 2000 ppm CO
Tel: 07788 548013
3 IR10 low byte + IR11 contains Sensor Type ID 3-bytes value.
4 IR13 high byte is FW Main revision, low byte – FW Sub revision.
solentgasconsultants@gmail.com
5 IR14 + IR15– 4-bytes sensor's serial number.
Honeywell CRIR-M1 User Guide
MODBUS REGISTER DEFINITION
Table 6 - Input Registers Definition
NAME
-
-
-
-
Temperature
Meter Status
Output Status
Space CO
2
PWM Output
2
Sensor Type ID High
Sensor Type ID Low
Memory Map version
FW version Main.Sub
Sensor ID High
5
Sensor ID Low
5
Serial Num.1
Serial Num.2
Serial Num.3
Serial Num.4
Serial Num.5
-
-
-
-
-
-
-
-
-
-
-
-
.
2
DESCRIPTION
Reserved
Reserved
Reserved
Reserved
Detector Temperature
DI 1 – reserved1
DI 2 – reserved1
DI 3 – reserved1
DI 4 – reserved1
DI 5 – reserved1
DI 6 – Out of Range
DI 7 – Memory error
DI 8 – Reserved1
DI 1 – Alarm Output status (inverted due to Open Collector)
DI 2 – PWM Output status (1 means full output)
Space CO
2
PWM Output
2
3
Sensor Type ID High
Sensor Type ID Low
3
Memory Map version
FW version Main.Sub
4
Sensor ID High
5
Sensor ID Low
5
Serial Num.1, Corresponding to the ASCII red 2-digit code.
Default: ASCII 000-0000-000
Serial Num.2, Corresponding to the ASCII red 2-digit code.
Default: ASCII 000-0000-000
Serial Num.3, Corresponding to the ASCII red 2-digit code.
Default: ASCII 000-0000-000
Serial Num.4, Corresponding to the ASCII red 2-digit code.
Default: ASCII 000-0000-000
Serial Num.5, Corresponding to the ASCII red 2-digit code.
Default: ASCII 000-0000-000
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
3
3
4
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