Rockwell Automation 1790D-NOV2/TNOV2 CompactBlock LDX Analog Modules - Manual (Page 16)

Publication 1790-UM001A-EN-P - March 2002
1-6 Overview
Output Module
The output module uses a digital-to-analog (D/A) converter to read
the digital output data from the network and convert it to an analog
output signal. Figure 1.3 below shows a block diagram of the
circuitry.
Figure 1.3
43220
Isolation
Control
Data
Microcontroller
Optocouplers
DeviceNet XCVR
24V dc
Field
Power
Analog
power
supply
Analog
power
D/A
Analog
output
Analog
output
Output 1
Output 0