Rockwell Automation 1771-DA,D17716.5.13 U MNL 1771-DA ASCII I/O MODULE - Manual (Page 39)

Getting Started with Your ASCII Module
Chapter 2
2Ć32
If you are still having trouble, refer to “Testing the ASCII Module and
Cables,” to verify communication between the ASCII module and the
industrial terminal. If you suspect a cable problem, check the 1770-CB
cable (Figure 1.7).
Then try again starting with Procedure P1.
In this demonstration you will load data characters into the write block
transfer file and observe how they are displayed by the industrial terminal.
You will use the industrial terminal in PLC-3 mode to load data. Then
you will change the industrial terminal to alphanumeric mode and observe
the transferred data.
The procedures that you will follow are described below.
In Procedure You Will
P3 Connect the 1775ĆCAT cable, and set your industrial terminal to PLCĆ3
mode
P5 Load data into the file
P1 Connect the 1770ĆCB cable, and set your industrial terminal to alphanuĆ
meric mode
P6 Enable the transfer of new data
Procedure P3
Set Your Industrial Terminal to PLC-3 Mode
NOTE: Skip this procedure if the industrial terminal is already in PLC-3
mode.
1. Connect the 1770-CAT cable to channel B.
2. Set your industrial terminal to PLC-3 mode, and display the
beginning of your ladder diagram program.
Press [SHIFT][MODE]1
Procedure P5
Load Data into a File
1. Place the processor in program load mode using the PLC-3 front
panel.
Writing Data to Your ASCII
Device