GE
90-70
manual
GE Fanuc Automation
Specs
Install
Chapter Fault Detection
Watchdog Timer
Configuration Requirements
Basic CPU Redundancy Setups
Command Block for Svcreq #43
Connector
Battery Connectors
Backup Active
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GE Fanuc Automation
Programmable Control Products
Series
90™-70
Enhanced Hot Standby
CPU Redundancy User's Guide
GFK-1527A
May 2000
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Contents
GE Fanuc Automation
GFL-002
Preface
Content of This Manual
Related Publications
Preface
Contents
Contents
Chapter Fault Detection
Appendix a Cabling Information
Definition of Terms
Introduction
Enhanced Hot Standby CPU Redundancy
Compatibility with CPU780
Using the Redundancy CPU for Non-Redundant Operation
Redundancy CPUs as Compared to Other Series 90-70 CPUs
Features not Available with Redundancy CPUs
Differences in Operation for Redundancy CPUs
Redundancy Communications Module
Enhanced Redundancy CPU Module
Redundant Racks
Systems for Enhanced Hot Standby CPU Redundancy
Local I/O
Genius I/O
Cable Connections
Local I/0 Can be
Enhanced Hot Standby CPU Redundancy System with Local I/O
GHS Control Strategy
Control Strategies
GDB Control Strategy
Output Control with GHS
Basic Enhanced Hot Standby Operation
Output Control with GDB
Single Bus with Preferred Master GHS Control Strategy
Basic CPU Redundancy Setups
Critical Data + Redundant Outputs Transferred
Single Bus with Floating Master GDB Control Strategy
Paired GBC = INT/EXT Internal External
Dual Bus with Floating Master GDB Control Strategy
On-Line Repair
Online Programming
Duplex CPU Redundancy
System Components
For Installation Instructions
System Racks
Redundancy CPU
Features
CPU Architecture
Watchdog Timer
Expansion Memory Board
Memory Protect Keyswitch
CPU Features
Battery Connectors
CPU LEDs
Port
CPU Mode Switch
Unit Select Pushbutton
Redundancy Communications Module
RCM Status Leds
Connector
Bus Transmitter Module
Connectors
Bus Transmitter Module Status LEDs
Cables and Termination
Bus Receiver Module
Bus Receiver Module Status LEDs
Location of GBCs and Blocks
Genius Bus Controller
Dual Bus Genius Networks
Single Bus Genius Networks
Bus Controller LEDs
Programmer Connection for Configuration
Configuration Requirements
One Application Program in Both PLCs
Program Folders in Control Programming Software
Program Folders in Logicmaster
CPU Configuration Parameters
Parameter Default Range Description
Configuring Shared I/O References
System Communications Window Considerations
Finding the Memory Available for Application Program Storage
Bus Controller Configuration Parameters
Rack Module Configuration Parameters
Genius I/O Block Configuration Parameters
Normal Operation
Powerup of a Redundant CPU
Resynchronization of a Redundant CPU
Incompatible Configurations
GDB Control Strategy
GHS Control Strategy
Ovrpre %S Reference Not Available
References for CPU Redundancy
Sweep Time Synchronization
Scan Synchronization
AT a
Output Data Transfer to the Backup Unit
Fail Wait Time
Data Transfer Time
GFK-1527A Normal Operation
Data Transfer Example
Programming a Data Transfer from Backup Unit to Active Unit
Disabling Data Transfer Copy in Backup Unit Svcreq #43
Command Block for Svcreq #43
Validating the Backup PLCs Input Scan
Backup Qualification with Svcreq #43
Validating the Backup PLCs Logic Solution
Switching Times
Switching Control to the Backup Unit
RUN Disabled Mode for GHS Control Strategy
RUN Disabled Mode
Example 1 Role switches allowed on both units
Example 3 Role switches not allowed on either unit
Example 2 Role switches allowed on both units
Example 4 Role switches allowed on both units
Backup Active
Example 8 Invalid
RUN Disabled Mode for GDB Control Strategy
CGR772 CGR935
Finding the Words to Checksum Each Sweep
Finding the Total Sweep Time
Finding the Background Window Time
Miscellaneous Operation Information
Timer and PID Function Blocks
Timed Contacts
Multiple I/O Scan Sets
Sequential Function Chart Programming SFC
Stop to RUN Mode Transition
Debugger
Background Window Time
Genius Bus Controller Switching
Ethernet Global Data Consumption
Ethernet Global Data in a Redundancy CPU
Sntp Timestamping
Ethernet Global Data Production
Configuration of Fault Actions
Fault Detection
Fault Detection
Message Fault Description Corrective Action
PLC Fault Table Messages for Redundancy
With redundancy in other fault groups
Fault Response
Losing a Link
Faulting the Redundancy Communications Module
Fault Actions in a CPU Redundancy System
Fault Group Type Description
Configurable Faults
Fatal Faults on Both Units in the Same Sweep
Non-Configurable Fault Group
On-Line Repair
Maintaining Parallel Bus Termination
Power Supply
On-Line Repair Recommendations
Racks
Redundancy Communications Module and Cables
Central Processor Unit
Redundancy Communications Link Failures
Bus Transmitter Module
Single Bus Networks Bus faults
Genius Bus Controller
Genius Bus
Genius Blocks
Dual Bus Networks
Cabling Information
Specifications
IC690CBL714A Multi-drop Cable
Purpose
Connector a
Connector A, 15-pin Female
Index
Battery connectors Bus Controller, Genius
Index
Online programming Online repair
Svcreq
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