Benchmark with Edge [I]: Operation-Maintenance Manual
SECTION 7
– BOILER SEQUENCING TECHNOLOGY
OMM-0145_A99
• GF-218 • 9/18/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page
121
of
157
OPTION 7
Instructions: Remote Setpoint, Modbus Header Temp Sensor & 4-20ma Setpoint
Drive
Step 3: OPTION 7 CONFIGURATION
Using the Modbus Transmitter provides gives the plant the ability to use the Backup
manager feature. This allows the any of the client units to become a Backup manager if
the manager unit is not communicating.
On All Boiler:
1. Go to:
Main Menu
→
Advanced Setup
→
BST Cascade
→
Cascade Configuration
:
•
Set the
Unit Mode
parameter to
BST Client
.
2. Go to:
Main Menu
→
Advanced Setup
→
BST Cascade
→
Application Configuration
:
•
Set the
Unit Address
parameter to the communication address of the unit.
On the BST Manager only
:
1. Go to
Main Menu
→
Advanced Setup
→
BST Cascade
, set the Parameters to the Values
in each menu in the table below.
Menu/Screen Name
Parameters
Values
Cascade
Configuration
Auto Manager Transfer
Enabled (This is available on the Manager
unit only)
Auto Failover Type
C-More
Backup Manager Address Enter the designated backup unit address
Unit Mode
BST Manager
Hdr Temp Sensor
Network
Sensor
Comm Address
240
Hdr Temp Point
14
Application
Configuration
Application
Space Heating
SH Operating Mode
Rmt Setpt Analog
BST Remote Signal
4-20mA/1-5V *
Cascade Comm
Min address
The
minimum
unit address in the cascade
Max address
The
maximum
unit address in the cascade
Cascade Baud Rate
The baud rate for the cascade.
* Be sure that the SW1-
4 DIP switch on Controller’s Interface Board is set appropriately (On = Current,
Off = Voltage.)
