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

EAF Math Instructions
Chapter 14
14-2
Figure 14.1
EAF
T
wo Operand W
ord and Digit Format in the Data T
able
17 16 15 14 10 7 4 3
Data
0
S
Digit 1 Digit 2 Digit 3
Digit 4
Digit 7
Digit 10
Digit 5
Digit 8
Digit 11
Digit 6
Digit 9
Digit 12
Operand A
MSD
LSD
a
a+1
a+2
a+3
S
Digit 1 Digit 2 Digit 3
Digit 4
Digit 7
Digit 10
Digit 5
Digit 8
Digit 11
Digit 6
Digit 9
Digit 12
Operand B
MSD
LSD
b
d
g
k
Result
Address
Result
m
m+1
m+2
m+3
10348-I
13
X S 0 O/U
Address
The Operands and the Result words have the format xxx xxx . xxx xxx.
Only the Addition and Subtraction EAFs use all 12 digits. All other EAFs
use 6 digits maximum, located anywhere within the 12 available digits.
Legal formats are:
123456. 12.3456
12345.6 1.23456
1234.56 .123456
123.456
Enter the operands from the keyboard of your 1770-T3 terminal or through
ladder diagram instructions.
Operand A (which is the data address of the EAF instruction) can be
placed in any legal address in the data table. However, you must select
four consecutive addresses.
Important: Operand A does not need to be shown in the EAF rung.