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11
CONFIGURE COMMUNICATION
The final installation task is communication setup and configuration. Use the arrow keys on the D20 to select
menu options (the Enter button accepts the change and the Back button exits the menu screen).
To set up a 4-20mA communication connection to a PLC:
1.
Select CONFIGURATION on the D20 display/controller panel and choose 4-20 mA OPTIONS.
2.
Go to SELECT OUTPUT CHANNELS.
3.
Select OUT1 (or any of the four channels).
To set the scaling limits between the PLC and the D20:
1.
In the
4-20mA Options
menu, select and change the values for
Set 4-20mA Upper Limit
.
2.
Back out to the
4-20mA Options
menu, select and change the values for
Set 4-20mA Lower Limit
.
(Optional) To calibrate the outputs:
The 4-20mA outputs on the D20 are already calibrated at the factory. If the settings do not match those on your
PLC, select
4-20 mA CAL
option from the
Configuration
menu to recalibrate the channel, 4mA, and 20mA values: