AERCO BMS 168 - Manual (Page 31)

4.2.12 ▲ and ▼ Arrow Keys
The ▲ and ▼ arrow keys are not active in
this mode, since no changes can be made
to the displayed settings
4.2.13 ON and OFF Keys
Pressing and releasing the ON or OFF key
enables or disables the BMS. In addition,
the corresponding key LED will light when
the key is pressed.
4.2.14 CONFIG SYS
Pressing and releasing this key places the
BMS in the System Configuration Mode and
lights the CONFIG SYS key LED. When this
key is pressed, the display will read
CONFIG. SYSTEM MAKE SELECTION.
Refer to paragraph 4.4 for key functions
when in this mode.
NOTE
Sample Field Adjust Mode displays
with their Factory Default values and
allowable entry ranges are provided
in Appendix D.
4.3 F
IELD
A
DJUST
M
ODE
D
ISPLAYS
A
ND
F
UNCTIONS
The Field Adjust Mode allows you to view or
change settings currently stored in memory
for BMS parameters. Many of the settings in
this mode have been preset by AERCO to
their Factory Defaults. However, you can
reset many functions to suit the specific
needs of your BMS installation.
The Field Adjust Mode is entered by simply
pressing the FIELD ADJ key and verifying
that the FIELD ADJ key LED lights. When
this key is pressed, the display will read
FLD. ADJUSTMENTS MAKE SELECTION.
The following paragraphs describe the
functions of the keys when in the Field
Adjust Mode.
NOTE
When in the Field Adjust Mode, the
HDR TEMP and AIR TEMP keys are
used to set multiple functions
required for Modbus Network
operation. Refer to Modbus
Communication Manual GF-114 for
additional information on set-up and
installation of Modbus (RS485)
Networks.
4.3.1 HDR TEMP
The HDR TEMP key is used to set multiple
Modbus functions when the BMS is
configured as the Modbus Master and is
directly controlling C-More Boiler Controller
Slaves on the RS485 Network. This key is
used to set functions as follows:
NOTE
Default values for each function are
indicated below. Refer to Modbus
Communication Manual GF-114 for
required settings. Use the ▲ and ▼
arrow keys to increment or
decrement the displayed value.
1. Press key once. RS485 BAUDRATE is
displayed. Default = 9600.
2. Press key again. MIN SLAVE ADDR is
displayed. Default = 0.
3. Press key again. MAX SLAVE ADDR is
displayed. Default = 0.
4. Press key again. NUMBER OF NETW
BLRS is displayed. Default=0. This key
is used to set the maximum number of
C-More Boilers that will be controlled on
the Modbus Network.
5. Press key again. MODBUS CNTL TYPE
is displayed. Default = Round Robin.
6. Press key again. NETW BOILER 1
ADDRESS=0 is displayed. Default = 0.
This address must be the same as the
Comm Address stored in the C-More
Boiler Controller.
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