Rockwell Automation Allen-Bradley 1790D-N0C2, Руководство пользователя

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12 Rockwell Automation Publication 1790-UM001B-EN-P - April 2021
Chapter 1 Overview
Each time the input module reads a channel, the module tests that analog data
value for an overrange or underrange condition. If such a condition is
detected, a unique bit is set in the channel status word. The channel status
word is described in
Module Data, Status, and Channel Configuration for
Analog Output Modules on page 33 .
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 3 shows a block diagram of the circuitry.
Figure 3 - Output Module Circuitry Block Diagram
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