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
Quick Reference
Appendix E
E-35
Internal Control Functions
Diagnostic Word: Word 027
Bits in word 027 are used by the processor for internal control functions.
This
Bit:
Stores this Information:
00 (Battery low) - set when the battery is low.
01 (EEPROM) - set indicates that EEPROM transferred at powerup.
This bit is always reset (0) when the processor powers down
02 (STI too long) - set indicates subroutine execution time plus program
transition time exceed service time.
03 Reserved.
04
05
06
07 Reserved for Data Highway - set when the processor is connected to
the line and actively communicating with the Data Highway.
10 Report Generation message 1 enable bit
11 Report Generation message 2 enable bit
12 Report Generation message 3 enable bit
13 Report Generation message 4 enable bit
14 Report Generation message 5 enable bit
15 Report Generation message 6 enable bit
16 Report Generation busy bit
17 Report Generation done bit
Diagnostic Word 027