User Manual Owner's manual
Table Of Contents
- 1772-6.5.8, Mini-PLC-2/02, -2/16, -2/17 Processor, User Manual
- Important User Information
- Summary of Changes
- Table of Contents
- 1 - Using This Manual
- 2 - Fundamentals of a Programmable Controller
- 3 - Hardware Features
- 4 - Installing Your Programmable Controller
- 5 - Starting Your Processor
- 6 - Maintaining and Troubleshooting Your Processor
- 7 - Memory Organization
- 8 - Scan Theory
- 9 - Relay-Like Instructions
- 10 - Program Control Instructions
- 11 - Timers and Counters
- 12 - Data Manipulation and Compare Instructions
- 13 - Three-Digit Math Instructions
- 14 - EAF Math Instructions
- 15 - EAF Log, Trig, and FIFO Instructions
- 16 - EAF Process Control Instructions
- 17 - Jump Instructions and Subroutines
- 18 - Block Transfer
- 19 - Data Transfer Instructions
- 20 - Bit Shift Registers
- 21 - Sequencers
- 22 - Selectable Timer Interrupts
- 23 - Report Generation
- 24 - Program Editing
- 25 - Programming Techniques
- 26 - Program Troubleshooting
- A - Specifications
- B - Processor Comparison Chart
- C - Number Systems
- D - Glossary
- E - Quick Reference
- Index
- Back Cover
Starting Your Processor
Chapter 5
5-10
1Slot Addressing
The processor addresses one I/O module slot as one I/O group.
Each 1-slot I/O group is represented by a word in the input image table and
a word in the output image table. You have 16 input bits and 16 output bits
available for each slot. This lets you use any mix of 8- and 16-point I/O
modules in the I/O chassis in any order. 32-point modules must be used in
complementary arrangements.
Important: For full compatibility with 1-slot addressing you must use the
series C, revision A (or later) 1770-T3 industrial terminal.
You select 1-slot addressing by setting switches 4 and 5 of the I/O chassis
backplane switch assembly:
Switch 4 to the OFF position
Switch 5 to the ON position
The physical address of each I/O group (1-slot) corresponds to an input
and an output image table word. The type of module you install (either
8-point or 16-point I/O) determines the number of bits in these words that
are used.
Figure 5.8 (on the next page) illustrates the 1-slot I/O group concept with
one 16-point I/O module. This module group uses an entire word of the
image table. You can use an 8-point I/O module with 1-slot addressing,
but the module uses only 8 bits of the I/O image table word (8 bits in the
I/O image table are unused).