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5. (Optional) Set Additional Communications Response Delay in “delay units.”
A delay unit is 2/3 of the time required to transmit one character, as calculated for
the port currently in use and the character transmission parameters. Valid values
range from 1 to 255.
Additional Communications Response Delay is used to synchronize Modbus
communications with hosts that operate at a slower speed than the transmitter. The
value specified here will be added to each response the transmitter sends to the
host.
Tip
Do not set Additional Communications Response Delay unless required by your Modbus host.
6.7.4 Configure Digital Communications Fault Action
Display
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ProLink II ProLink > Configuration > Device > Digital Comm Settings > Digital Comm Fault Setting
Field Communicator Configure > Alert Setup > Inputs/Outputs Fault Actions > Digital Communications
Overview
Digital Communications Fault Action specifies the values that will be reported via digital
communications if the transmitter encounters an internal fault condition.
Procedure
Set Digital Communications Fault Action as desired.
The default setting is None.
Options for Digital Communications Fault Action
Options for Digital Communications Fault ActionTable 6-17:
Label Description
ProLink II ProLink III Field Communicator
Upscale Upscale Upscale
• Process variable values indicate that the
value is greater than the upper sensor lim-
it.
• Totalizers stop incrementing.
Downscale Downscale Downscale
• Process variable values indicate that the
value is greater than the upper sensor lim-
it.
• Totalizers stop incrementing.
Integrate the meter with the control system
Configuration and Use Manual 119