Macurco MRS-485 Modbus RS-485 Adapter
REV – 1.0
[34-2900-0019-7]
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Appendix A
Please refer to BRS-485 product page in
for details on Modbus Registers, BACnet Objects,
Metasys N2 Objects, and Siemens FLN points.
NOTE: BRS-485 dynamically adjusts which objects/registers are exposed on the network based on whether a
single-sensor detector or dual-sensor detector is detected by the BRS-485. So, please refer to corresponding
object mapping available on the BRS-485 product page in
. For dual sensor (CX-6), S1 refers
to carbon monoxide sensor and S2 refers to nitrogen dioxide sensor.
BRS-485's network driver does not start up until a valid Macurco detector is recognized and hence
objects/registers are not exposed until after successful registration with valid Macurco detector. Following table
list valid detector type for BRS-485 along with other detector details.
Detector
Sensor
Type
Sensor Range
Sensor
Resolution
CM-6
1
200ppm
1ppm
TX-6-ND
2
20.0ppm
0.1ppm
GD-6
3
50% LEL
1% LEL
TX-6-AM
4
100ppm
1ppm
TX-6-HS
5
50ppm
1ppm
RD-6
6
1000ppm
10ppm
OX-6
8
25.0% v/v
0.1% v/v
CD-6H
9
5000ppm
50ppm
CD-6MC
9
5000ppm
50ppm
CD-6G
10
5.00% v/v
0.01% v/v
CX-6
1 (CO)
2 (NO2)
200ppm (CO)
20.0ppm (NO2)
1ppm (CO)
0.1ppm (NO2)
