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Agilaire 8872 Manual
Application Notes
Next, create a Logger Modbus Device under
Configuration->Logger Channels
using the
supplied driver:
To set the analog output function for each particular analog output channel open the “Analog
Ouputs” tab. To create a new analog output program, use the bottom row (with the ‘*’ asterisk) and
enter in the fields:
DAC Channel Number (1, 2, 3, etc)
Channel (Logger)
Average Interval to transmit/update (001s for instantaneous)
Low/High- represents upper / lower engineering units to be output (e.g. 0 to 500 ppm)
Low/High Output – set to 0 and 20,000 for Acromag devices.
Action On Error- set to either Ignore, Zero (drive to zero value), Hold, or LowVal (e.g., 4mA).
Modbus Instrument- associates with Modbus device.
Modbus Register: For Acromag, use:
Data Type: Integer
Allow the Site Node Logger service to restart, and the analog output should begin to drive the
desired value.
