Svcreq | GE 90-70 manual

Index

Stop mode, 2-5

Stop to Run mode transition, 4-22

different for redundancy CPUs, 1-4

SVCREQ 26

role switch from program, 4-14

SVCREQ 27

Write to reverse transfer area, 4-10

SVCREQ 28

Read from reverse transfer area, 4-10

SVCREQ 43

using for backup qualification, 4-13

Sweep time, 4-20

Sweep time synchronization, 4-6

Synchronization

scan, 4-6

Synchronized

defined, 1-1

System Communications Window, 3-4

T

Termination

bus, 5-11

Timed contacts, 4-21

Timed programs

not available with Redundancy CPUs, 1-4

Timer

watchdog, 10ms to 1000ms, 2-3

Timer function blocks, 4-21

U

User checksum, 4-19

V

VME Racks

not compatible with Redundancy CPUs, 1-4

W

Watchdog timer

10ms to 1000ms, 2-3Genius bus, 2-12

Words to checksum calculation example, 4-19

Index-4

Series 90™-70 Enhanced Hot Standby CPU Redundancy User's Guide–May 2000

GFK-1527A

Image 85

GE 90-70 manual Svcreq

Contents

GE Fanuc Automation GFL-002 Preface Content of This ManualRelated 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 CPUsDifferences in Operation for Redundancy CPUs Redundancy Communications Module Enhanced Redundancy CPU ModuleRedundant Racks Systems for Enhanced Hot Standby CPU Redundancy Local I/O Genius I/OCable Connections Local I/0 Can be Enhanced Hot Standby CPU Redundancy System with Local I/O GHS Control Strategy Control StrategiesGDB Control Strategy Output Control with GHS Basic Enhanced Hot Standby OperationOutput 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 ProgrammingDuplex CPU Redundancy System Components For Installation InstructionsSystem Racks Redundancy CPU Features CPU Architecture Watchdog TimerExpansion Memory Board Memory Protect Keyswitch CPU FeaturesBattery Connectors CPU LEDs Port CPU Mode Switch Unit Select Pushbutton Redundancy Communications Module RCM Status Leds Connector Bus Transmitter Module ConnectorsBus Transmitter Module Status LEDs Cables and Termination Bus Receiver ModuleBus 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 RequirementsOne 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 #43Validating the Backup PLCs Logic Solution Switching Times Switching Control to the Backup Unit RUN Disabled Mode for GHS Control Strategy RUN Disabled ModeExample 1 Role switches allowed on both units Example 3 Role switches not allowed on either unit Example 2 Role switches allowed on both unitsExample 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 BlocksTimed Contacts Multiple I/O Scan Sets Sequential Function Chart Programming SFC Stop to RUN Mode TransitionDebugger 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 SupplyOn-Line Repair Recommendations Racks Redundancy Communications Module and Cables Central Processor UnitRedundancy Communications Link Failures Bus Transmitter Module Single Bus Networks Bus faultsGenius Bus Controller Genius Bus Genius Blocks Dual Bus Networks Cabling Information SpecificationsIC690CBL714A Multi-drop Cable Purpose Connector a Connector A, 15-pin Female Index Battery connectors Bus Controller, Genius Index Online programming Online repair Svcreq