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90-70 manual
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85 pages, 505.77 Kb
GE Fanuc Automation
Programmable Control Products
Series 90™-70
Enhanced Hot Standby
CPU Redundancy User's Guide
GFK-1527A
May 2000
Contents
Main
Warnings, Cautions, and Notes as Used in this Publication
Warning
Caution
Note
Preface
Content of This Manual
Related Publications
Preface
Contents
Page
Page
Page
Introduction
Definition of Terms
Enhanced Hot Standby CPU Redundancy
Features of Enhanced Hot Standby CPU Redundancy
Using the Redundancy CPU for Non-Redundant Op eration
Compatibility with CPU780
Redundancy CPUs as Compared to Other Series 90-70 CPUs
Features not Available with Redundancy CPUs
Differences in Operation for Redundancy CPU s
Components of the Enhanced Hot Standby Redundancy System
Enhanced Redundancy CPU Module
Redundancy Communications Module
Redundant Racks
I/O Systems for Enhanced Hot Standby CPU R edundancy
Genius I/O
Local I/O
Cable Connections
GFK-1527A Chapter 1 Introduction 1-7
Enhanced Hot Standby CPU Redundancy Syst em with Local I/O
TERMINATED I/O CABLE
---
*
Secondary Unit Primary Unit
Control Strategies
GHS Control Strategy
GDB Control Strategy
Basic Enhanced Hot Standby Operation
Output Control with GHS
Output Control with GDB
Basic CPU Redundancy Setups
Single Bus with Prefer red Master: GHS Contro l Strategy
Single Bus with Floating Master: GDB Control Strategy
Dual Bus with Floating Master: GDB Control Strategy
Duplex CPU Redundancy
Online Programming
On-Line Repair
System Components
For Installation Instru ctions
System Racks
Redundancy CPU
Features
CPU Architecture
Expansion Memory Board
Watchdog Timer
CPU Features
Memory Protect Keyswitch
CPU LEDs
OK: The OK LED is ON when the CPU is functioning properly. The
RUN: This LED is ON when the CPU is in the RUN/ENABLE or RUN/DISABLE mode. It is
CPU Mode Switch
Run/Outputs Enabled Mode
Run/Outputs Disabled Mode
Stop Mode
Port 1
Redundancy Communications Module
Unit Select Pushbutton
Connector
RCM Status LEDS
Board OK:
Local System Ready
Local System Active
Bus Transmitter Module
Bus Transmitter Module S tatus LEDs
Bus Receiver Module
Cables and Termination
Bus Receiver Module St atus LEDs
Board OK: The top LED is ON when the CPU completes its power-up configuration of
Last Rack: The middle LED is ON when the terminator plug is installed in the bottom
Genius Bus Controller
Location of GBCs and Blocks
Single Bus Genius Networks
Dual Bus Genius Networks
Bus Controller LEDs
Module OK: The top LED is ON when the board has
CH 1 OK: The CH 1 OK LED is ON after the board has
Configuration Requirements
Programmer Connection for Configuration
One Application Program in Both PLCs
Program Folders in Control Programming Software
Program Folders in Logic master 90
CPU Configuration Parameters
Configuring Shared I/O References
Finding the Memory Available for Application Program Storage
System Communications Win d ow Con siderations
Configuring the Redundancy CPU for Non-redundant Operation
Rack Module Configuration Parameters
Bus Controller Configuration Parameters
Genius I/O Block Configuration Parameters
Normal Operation
Powerup of a Redundant CPU
Incompatible Configurations
Resynchronization of a Redundant CPU
GHS Control Strategy
GDB Control Strategy
%S References for CPU Redundancy
OVR_PRE %S Reference Not Available
Scan Synchronization
Input Data and Synchronization Data Transfer to the Backup Unit
Sweep Time Synchronization
GFK-1527A Chapter 4 Normal Operation 4-7
Output Data Transfer to the Backup Unit
DATA DATA
Data Transfer Time
Fail Wait Time
Page
Programming a Data Transfer from Backup Unit to Active Unit
Data Transfer Example
Disabling Data Transfer Copy in Backup Unit (SVCREQ #43)
Warning
Command Block for SVCREQ #43
Backup Qualification w ith SVCREQ #43
Validating the Backup PL C's Input Scan
Validating the Backup PLC's Logic Solution
Switching Control to the Backup Unit
Switching Times
Commanding a Role Switch from the Appli cation Program (SVCREQ #26)
RUN Disabled Mode
RUN Disabled Mode for GHS Control Strategy
Example 1: Role switches allowed on both unit s
4-16 Series 90-70 Enhanced Hot Standby CPU Redundancy User's Guide May 2000 GFK-1527A
Example 2: Role switches allowed on both unit s
The Secondary unit drives the out puts in this example.
Example 3: Role switches not a llowed on either unit
Example 4: Role switches allowed on both unit s
Example 5: Role switches allowed on both units Seco ndary Unit Active
Example 6: Role switches not a llowed on either unit, Secondar y Unit Active
Example 7: Role switches allowed on both unit s, Secondary Unit Active
Example 8: Invalid
RUN Disabled Mode for GDB Control Strategy
Background User Checksum and Background Window Timing Instructions
Finding the Words to Checksum Each Sweep
Finding the Background Window Time
Finding the Total Sweep Time
Miscellaneous Operation Information
Timer and PID Function Blocks
Timed Contacts
Multiple I/O Scan Sets
C Debugger
STOP to RUN Mode Transition
Background Window Time
Sequential Function Chart Programming (SFC)
Genius Bus Controller Switching
Ethernet Global Data in a Redundancy CPU
Ethernet Global Data Consumption
Ethernet Global Data Production
SNTP Timestamping
Fault Detection
Configuration of Fault Actions
Fault Detection
PLC Fault Table Messages for Redundancy
Page
Fault Response
Faulting RCMs, Losing Links, a nd Terminating Communications
Faulting the Redundancy Communications Modu le
Losing a Link
Fault Actions in a CPU Redundancy System
Configurable Faults
*
GFK-1527A Chapter 5 Fault Detection 5-9
Non-Configurable Fault Group
The table below shows the non-configurable faults and their fault action defaults.
Fault Actions Fault Group Table Type Description Not Synchronized Synchronized
Fatal Faults on Both Units in the Same Sweep
On-Line Repair
Maintaining Parallel Bus Termi nation
On-Line Repair Recommendation s
Power Supply
Caution
Racks
Central Processor Unit
Redundancy Communications Module and Cables
Redundancy Communications Link Failures
Bus Transmitter Module
Genius Bus Controller
Genius Bus
Single Bus Networks Bus faults
Dual Bus Networks
Genius Blocks
Cabling Information
Appendix
A
IC690CBL714A Multi-drop Cable
Purpose
Specifications
A
Figure A-1. Multi-Drop Cable Connection Diagram
Page
Index
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