Rockwell Automation 1771-DA,D17716.5.13 U MNL 1771-DA ASCII I/O MODULE User Manual
Page 16
Getting Started with Your ASCII Module
Chapter 2
2Ć9
EN
011
17
DN
111
17
BLOCK XFER READ
DATA ADDR:
MODULE ADDR:
BLOCK LENGTH:
FILE:
030
111
16
252 - 271
EN
011
16
DN
111
16
BLOCK XFER WRITE
DATA ADDR:
MODULE ADDR:
BLOCK LENGTH:
FILE:
031
111
16
200 - 217
020
02
END 00460
NOTE: Configure the data table for two racks using [SEARCH][5][0]
before entering this program.
Installing Your ASCII Module
Be sure that power to the I/O chassis is turned off when installing (or
removing) your ASCII module as follows:
1.
Remove power from the I/O chassis.
2.
Insert the ASCII module in rack 1, module group 1, slot 1. The
program makes the processor communicate with the ASCII module
at that specific location. (If you must use another rack location and
are familiar with block transfer operation, change the rack, group,
and slot number of the module address in the block transfer read and
write instructions, accordingly.)
3.
Turn on power to the I/O chassis. Three LED indicators on the
ASCII module illuminate momentarily. Their functions are:
FAULT: Normally off. This red LED indicator illuminates when the
module detects an internal fault.