Boiler Control Instruction & Operation Manual
Page 2
4
of
68
Installation
Energy Management Interface
The following Parameters are adjustable within the System menu of the display. Access System menu by
going to the Main Menu > EMS Interface > Modbus Setup. Select EMS Modbus Parameters for directions
on how to edit EMS Parameters.
READ ALL DIRECTIONS
before entering the System Menu.
Display Communication Port Setup;
COM Port:
Com 1
Com 2
Com 3
Com Port Configure For
Not Used
Control
EMS
Port Type
Not Used
Modbus Master
Modbus Slave
Special Notes
n/a
Caution
Do not change any of
these settings. Loss of
communication to control
could result.
Note
This is the port to adjust
settings to suit the EMS
System
Comm HMI Station
This is Modbus Slave Address.
n/a
0
(not used)
1
COM Mode
n/a
RS 485
RS 485
Baud Rate
n/a
38400
38400
Stop Rate
n/a
1 bit
1 bit
Data Bits
n/a
8 bit
8 bit
Parity
n/a
None
None
Comm Delay
n/a
10 ms
10 ms
Comm Timeout
n/a
1000 ms
1000 ms
Comm Retry Times
n/a
2
2
PLC Default Station
This is address Modbus Master is reading.
n/a
1
1
(not used)
Baud Rate Fine Tuning
n/a
0
0