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4. Connect the cable to the terminal blocks.
Fig. 8.
5. Plug the terminal block back onto the pin connector
and tighten the waterproof connectors.
Fig. 9.
6. Replace the cover of the electrical wiring compart-
ment and tighten the screws.
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 energized
continuously for more than 48 hours to ensure stable
output of all measured values.
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
5
C7355B IN-DUCT IAQ MONITOR
Fig. 10.
31-00438—01
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