Micromod MOD: Modcell 2050R MODBUS Communications User Manual
Page 29
IB-23C650M
RS-485 COMMUNICATIONS SETUP
Table 1. RS-485 Setup Menu
Middle
Display
Bottom
Display
Entry Description
SETPOINT
LAST
NEW VALU
If any of the LOCAL set-point sources were
selected in the previous step, "LAST" will
cause the controller to use the current set-point
value in that location. Selecting "NEW VALU"
allows a new value (defined in Step 8.12.6.1.1)
to be written into the set-point source register.
Note: The set-point value entered into that set-
point source in the "SETPTS MENU" will be
overwritten by the new value.
Ex.; LOC3 is selected as the computer fail set-
point mode (step 8.4.6) and has been set at
58.3 in the "SETPTS MENU". The computer
fail set-point value (set in Step 8.12.6.1.1) is set
at 38.6. When a computer fail is detected, 38.6
will be written into LOC3.
SPT VALU
XXXX
Where X = -3000 to 30000. This value is
limited by the specific set-point limits.
ENABLE
ON
OFF
= enables the bus for communications with a
host device.
= disables the communications bus from
receiving or writing with a host device.
This duplicate entry is provided for
convenience since the bus must be re-enabled
following any parameter change.
NOTE: IF this attribute setting is changed
from OFF to ON, communication with
the host device must be initiated by
switching from LOCKED to
REQUESTED at the computer (CMP)
prompt in the DISPLAYS MENU. See
Basic Operation With a Host
Device for more information.
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