Communications Group; Table 3-8 Communications Group Function Prompts - Honeywell UDC2500 Product Manual

3.8

Communications Group

Introduction
The Communications group lets you configure the controller to be connected to a host
computer via Modbus® or Ethernet TCP/IP protocol.
Introduction
A controller with a communications option looks for messages from the host computer. If
these messages are not received within the configured shed time, the controller will
SHED from the communications link and return to stand-alone operation. You can also
set the SHED output mode and setpoint recall, and communication units.
Up to 99 addresses can be configured over this link. The number of units that can be
configured depends on the link length, with 31 being the maximum for short link lengths
and 15 drops being the maximum at the maximum link length.
ATTENTION
FM Models cannot have parameters changed (write transactions) via communications,
parameters can only be changed via the keyboard.
Function Prompts

Table 3-8 Communications Group Function Prompts

Function Prompt
Lower Display
ComADR
COMSTA
IRENAB
Selection or Range of
Setting
Upper Display
1 to 99
DIS
MODB
DIS
EnAB
UDC2500 Universal Digital Limit ControllerProduct Manual
Parameter
Definition
COMMUNICATIONS STATION ADDRESS—This
is a number that is assigned to a controller that is
to be used with the communications option. This
number will be its address. This parameter is also
used for the IR communications link.
COMMUNICATIONS SELECTION
DISABLE—Disables the communications option.
MODBUS—Allows Modbus RTU communication
prompts.
INFRARED COMMUNICATIONS –
Enables/Disables the IR Port.
Configuration
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