Form: 2405
Universal Communication Gateway Reference Manual
Date: 01-25-2019
Revision: 8
Bryan Steam LLC, 783 North Chili Avenue, Peru, IN 46970
Web:
Phone:
765.473.6651
Fax:
765.473.3074
E-mail:
20
3.2.5.6
REMOTE/LOCAL
The AZL has an internal remote / local
switch. This switch can only be operated
from the display menus.
•
ManualOperation
•
Auto/Manual/Off
There are three settings for this switch.
Off
– Manually turn the boiler off. All set
points are ignored.
Manual
– Operates in manual based on the
operator’s inputted value. All set points are
ignored. Normally used for commissioning
the boiler.
Auto
– Allows the boiler to be controlled by
the BMS.
3.2.5.7
BMS OPERATING MODE
When the BAS remote / local switch is
active and set to remote, control of the
boiler is based on the operating mode
selection.
There are three operating modes:
Off
– The burner will remain off regardless
of set point.
On
– The burner will be controlled based on
the fuel rate register #45. (Remote Firing
Rate Control)
Auto
– The burner will be controlled based
on external set point register #44. (Remote
Set point)
3.2.6
HONEYWELL RM7800
SERIES
There are two types of modules that can be
used to set up communication on the
RM7800.
Keyboard Display Module S7800A
see
Modbus Module S7810M see
3.2.6.1
MODBUS MODULE S7810M
Figure 17 - 7810M Address Switches and Baud Rate Jumper
Assign a device address number from 01 to
99. “00” is not an acceptable address
number and will not work.
The default baud rate is 9600. To change
the baud rate to 19.2K, use needle nose
pliers to remove the jumper. See Fig. 17.
