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C7355A ROOM IAQ MONITOR
Fig. 10.
Fig. 11.
6. Plug the terminal blocks back onto the contact pins.
7. Aim the dot located in the middle of two arrows on
the side of the detector with the vertical lines on the
backboard. See Fig. 12. Then rotate detector follow-
ing the "FIX" direction shown in Fig. 13. RS-485 wir-
ing is completed.
Fig. 12.
31-00434—01
RS-485 CONFIGURATION
Prerequisites
Before going through RS-485 configuration, ensure the
monitor is installed and wired up according to the
Mounting Instructions.
After installing the monitor and powering it up for initial
use or re-use, the device should be continuously powered
for more than 48 hours to ensure stable output of all
measured values. Complete these steps to configure the
detector and connect it to the BMS.
IMPORTANT
Make sure the RS-485 wiring is done before pow-
ering up
Modbus Register Table
Mode: RTU (MSB First)
Baud Rate:
1-4800
2-9600
3-14400
4-19200
5-38400
6-56000
7-57600
8-115200
default: 2-9600bps
Start Bits: 1
Data Bits: 8
Stop Bits: 1 / 2
default: 1
Parity: None / Odd / Even
default: None
Register Map
Support Function code:
3 - Read Holding Registers
4 - Read Input Registers
6 - Write Single Register
16 - Write Multiple registers
4
Fig. 13.
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