Rockwell Automation 1771-DA,D17716.5.13 U MNL 1771-DA ASCII I/O MODULE - Manual (Page 30)

Getting Started with Your ASCII Module
Chapter 2
2Ć23
Refer to your PLC-3 Programmable Controller Installation and Operation
Manual (publication 1775-800) for additional installation information
such as switch settings for the adapter module and I/O chassis, and for
grounding information.
Checking ASCII Module Configuration
Your module is configured for RS-232-C operation when shipped from
the factory. If you suspect that its internal configuration (settings of
internal programming plugs) has been altered, you should check module
configuration (refer to section titled ”Choosing the Mode of
Communication,” in chapter 2). Do this as follows:
1. Remove the covers from the module’s printed circuit board.
2. Locate the programming plugs, and set them according to RS-232-C
without control lines (Figure 2.8).
Entering the Getting Started Program"
Using your industrial terminal, enter the “Getting Started Program”
(Figure 1.8) into processor memory. At this point, you do not need to
understand how the program works, but you should enter it exactly as
shown.