Rockwell Automation Publication 1794-UM066C-EN-E - April 2023 31
Chapter 5
Analog I/O with Direct Connection
Overview In this example you add analog input and output modules to the FLEX I/O configured with two
digital I/O modules in the previous chapter. Analog modules default to direct connection, so you
open a direct connection to each analog module while still using a single rack-optimized
connection for the two digital I/O modules.
To test the system, the example of the previous chapter is modified to send a signal to one of the
analog output channels and read the signal back in through one of the analog input channels.
Set Up the Hardware Change the system hardware setup of the previous chapter to that shown in Figure 4, adding the
FLEX analog input and output modules to the DIN rail with the 1794-AENTR adapter and digital I/O
modules.
Figure 4 - Example Hardware Setup
• In the example application, the ControlLogix 5580 controller is in the slot that is shown in
Figure 4
in the ControlLogix chassis.
• Verify that the IP addresses for the controller network, the 1794-AENTR adapter, and the
programming terminal are correct.
• Verify the position (slot) of the I/O modules on the DIN rail.
• Verify that all wiring and cabling is properly connected.
• Make sure you have your communication driver (for example, AB_ETH-1 or AB_ETHIP-1)
configured in RSLinx as described in Appendix B
.
Create the Example
Application
Perform the following steps to create the example application:
1. Start the Studio 5000 Logix Designer application.
2. From the main dialog File menu, select the project file from the previous chapter (for
example, FLEX_IO_Controller).
FLEX I/O
1794-OB16 digital
output module
1794-IB16 digital
input module
1756-EN2TR
130.130.130.2
1794-AENTR
130.130.130.3
Data
Programming
terminal
130.130.130.1
SLOT 1 2
1794-OF4I analog
output module
1794-IF4I analog
input module
Local
chassis
SLOT 0
2 1
ControlLogix 5580
controller
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