Honeywell SEARCHLINE EXCEL PLUS Technical Manual page 77

Open path flammable hydrocarbon gas detector
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Modbus Holding Register
Address
First
Last
Qty
40062
40074
13
40075
40081
7
40082
40083
2
40084
40084
1
40085
40085
1
40086
40088
3
40089
40090
2
40091
40092
2
40093
40094
2
40095
40096
2
40097
40098
2
40099
40102
4
40103
40104
2
40105
40106
2
40107
40108
2
40109
40110
2
40111
40112
2
40113
40114
2
40115
40115
1
40116
40122
7
40123
40123
1
40124
40142
19
40143
40144
2
40145
40145
1
40146
40154
9
40155
40155
1
40156
40156
1
40157
40157
1
40158
40158
1
40159
40159
1
Note 2 - Events response format
2 registers
Date/Time
1 register
Event category; 1=alarm; 2=fault; 3=warning; 5=informational
2 registers
Event type
2 registers
Argument 1
2 registers
Argument 2
Register
Parameter Description
Type
r
Reserved
r
Serial number
r
Reserved
r
Detector version
r
Detector version
r
Voltage monitor
r
mA - A1 level
r
mA - A2 level
r
mA - A3 level
r
mA - A4 level
r
Reserved
r
Reserved
r
Reserved
r
Reserved
r
Alarm threshold
r
Alarm threshold
r
Reserved
r
Timestamp of last bump test
r
Proof test interval
r
Reserved
r
Relay congfiguration
r
Reserved
r
Timestamp
r
Reserved
r
Event block - read
w
Event command
w
Modbus responder address
w
Baudrate
w
Parity
w
Stop bits
Searchline Excel™ Plus / Searchline Excel™ Edge – Technical Manual
Chapter 10 Communications
Additional Description
------
------
------
Hw
Sw
[10] = reserved, [11] = reserved, [12] =
+3V3_AFE
Alarm1/Pre-alarm
Alarm2/Alarm
Test signal 2
Overrange
------
------
------
------
Alarm1 set point
Alarm2 set point
------
------
------
------
Default state of relay1,
Default state of relay2,
Default state of relay3,
Relay1 latch on/off,
Relay2 latch on/off,
Relay3 latch on/off
------
Current RTC timestamp in UTC
------
Event data - one record in event history
Event command - request
------
1 - 9600, 2 - 19200, 0 - 76800 (this
baud rate is only to support fp2 s/w)
Note: Modbus will work only with
baudrates 9600 and 19200
0 - Even; 1 - Odd; 2 - None
0 = 1 Stop bit; 1 = 2 Stop bits
77
Notes
Note 16
Note 17
Note 6
Note 2
Note 10

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