Page 6
ModBus
Stop 1
Use <ROLL> to toggle the stop bits between 1 and 2. The
default Modbus stop bits is 1.
14. STOP BITS
<MENU>
Press to advance to next menu item
Only if
Modbus Option
installed
ModBus
CRC A001
ModBus
CRC A001
Use <ROLL> to set the CRC value to A001 (CRC-16 reverse),
1021 (CITT), 8005 (CRC-16) or 8408 (CITT reverse). The default
CRC polynomial is 0xA001.
Use <ROLL> to change the value from MIN (minimum) to 50,
100, 150, 200, 250, 300 or 350ms. The factory default slave
response delay is minimum (minimum delay means just
more than 3.5 character time delays, 4ms for 9600 baud rate,
for example).
15. CRC VALUE
16. SLAVE
RESPONSE
<MENU>
Press to advance to next menu item
<MENU>
Exits the Setup Menu and returns to normal mode.
ModBus
Parity N
Use <ROLL> to select a parity value of N (none), O (odd) or E
(even). The factory default Modbus parity bit is N (none).
13. PARITY VALUE
<MENU>
Press to advance to next menu item
Only if
Network Option
installed
BaudRate
9600
Address
3
The default network baud rate is 9600. Use <ROLL> to select
9600, 19200, 38400, 57600, 76800 or 115200 as required.
The default network address is 3 for BACnet® and 1 for Modbus.
Use <ROLL> to select 0-127 for a BACnet® device or 1-255 for a
Modbus device.
11. BAUD RATE
12. ADDRESS
<MENU>
Press to advance to next menu item
<MENU>
Press to advance to next menu item
OPERATION - TESTING/COMMISSIONING (OPTIONAL)
To perform testing or commissioning the unit should be configured to display PM reading since AQI
reading requires operation over 24-hour period. To verify sensor is reading properly a Greystone CO BUMP
KIT or equivalent can be used to generate particulates.
To prepare for testing open CO BUMP KIT, follow instructions included with kit to generate smoke from
wick. The CO Adapter is not required for testing the PM sensor.
Hold wick close to inlet of sensor (bottom of cover).
Sensor PM reading should increase.
This will verify sensor is reading higher PM levels and is operational. If sensor readings do not increase
with smoke then sensor is faulty.
IN-GE-PMRMCXXX-05
Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: +1 506 853 3057 Web: www.greystoneenergy.com
