GE 90-70 manual Connectors, Bus Transmitter Module Status LEDs

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Bus Transmitter Module

A Bus Transmitter Module (BTM), catalog number IC697BEM713 or IC687BEM713 (½ slot version), must be in rack 0 of both the Primary PLC and the Secondary PLC in a Hot Standby CPU Redundancy system. The Bus Transmitter Module provides a path for Redundancy communications when connected to the Redundancy Communications Module as described previously. Each PLC in the redundancy system (Primary and Secondary) must have a BTM and an RCM in rack 0.

Primary Unit

Secondary Unit

( RACK 0 )

( RACK 0 )

P

C

B

R

G

P

C

B

R

G

S

P

T

C

B

S

P

T

C

B

U

M

M

C

U

M

M

C

31

30

Redundancy Communications Link

Redundancy Communications Link

When included as a bus communications module in an I/O expansion system, the BTM is a high speed parallel interface which propagates the I/O bus signals through a cable to a Bus Receiver Module located in the first I/O expansion rack. The BTM also provides a high speed parallel connection to the programmer.

Connectors

The lower connector on the BTM is used to connect to a Redundancy Communications Module in the other Redundancy system or to a Bus Receiver Module in the first expansion rack. Standard parallel I/O cables are used to make the connection to a Bus Receiver Module. Cables with built-in termination are used to make the connection to a Redundancy Communications Module.

The upper connector provides a parallel connection to a Work Station Interface (WSI) board installed in the programmer for the Series 90-70 PLC.

LEDs

MODULE OK

PROGRAMMER PORT ENABLED

EXPANSION PORT ENABLED

Connector for Programmer (Programmer Port)

Bus Transmitter Module Status LEDs

Module OK: The top LED is ON when the CPU software has completed its power-up configuration of the BTM, and has polled (or attempted to poll) each expansion rack in the system. It is OFF when any of these conditions are not met.

Programmer Port Enabled: The middle LED is either blinking or ON when the programmer and the PLC are communicating. It is OFF when they are not communicating.

Expansion Port Enabled: The bottom LED shows the status of the expansion bus. This LED is either blinking or ON when the BTM is communicating.

Connector for Redundancy Communications or Bus Receiver Module (Expansion Port)

2-8

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

GFK-1527A

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Contents GE Fanuc Automation GFL-002 Related Publications Content of This ManualPreface Preface Contents Contents Chapter Fault Detection Appendix a Cabling Information Definition of Terms IntroductionEnhanced Hot Standby CPU Redundancy Compatibility with CPU780 Using the Redundancy CPU for Non-Redundant OperationDifferences in Operation for Redundancy CPUs Features not Available with Redundancy CPUsRedundancy CPUs as Compared to Other Series 90-70 CPUs Redundancy Communications Module Enhanced Redundancy CPU ModuleRedundant Racks Systems for Enhanced Hot Standby CPU RedundancyCable Connections Genius I/OLocal I/O Local I/0 Can be Enhanced Hot Standby CPU Redundancy System with Local I/OGDB Control Strategy Control StrategiesGHS Control Strategy Output Control with GDB Basic Enhanced Hot Standby OperationOutput Control with GHS Single Bus with Preferred Master GHS Control Strategy Basic CPU Redundancy SetupsCritical Data + Redundant Outputs Transferred Single Bus with Floating Master GDB Control StrategyPaired GBC = INT/EXT Internal External Dual Bus with Floating Master GDB Control StrategyDuplex CPU Redundancy Online ProgrammingOn-Line Repair System Racks For Installation InstructionsSystem Components Redundancy CPU FeaturesExpansion Memory Board Watchdog TimerCPU Architecture Memory Protect Keyswitch CPU FeaturesBattery Connectors CPU LEDsPort CPU Mode SwitchUnit Select Pushbutton Redundancy Communications ModuleRCM Status Leds ConnectorBus Transmitter Module Status LEDs ConnectorsBus Transmitter Module Bus Receiver Module Status LEDs Bus Receiver ModuleCables and Termination Location of GBCs and Blocks Genius Bus ControllerDual Bus Genius Networks Single Bus Genius NetworksBus Controller LEDs Programmer Connection for Configuration Configuration RequirementsOne Application Program in Both PLCs Program Folders in Control Programming SoftwareProgram Folders in Logicmaster CPU Configuration ParametersParameter Default Range Description Configuring Shared I/O ReferencesSystem Communications Window Considerations Finding the Memory Available for Application Program StorageBus Controller Configuration Parameters Rack Module Configuration ParametersGenius I/O Block Configuration Parameters Normal Operation Powerup of a Redundant CPU Resynchronization of a Redundant CPU Incompatible ConfigurationsGDB Control Strategy GHS Control StrategyOvrpre %S Reference Not Available References for CPU RedundancySweep Time Synchronization Scan SynchronizationAT a Output Data Transfer to the Backup UnitFail Wait Time Data Transfer TimeGFK-1527A Normal Operation Data Transfer Example Programming a Data Transfer from Backup Unit to Active UnitDisabling Data Transfer Copy in Backup Unit Svcreq #43 Command Block for Svcreq #43 Validating the Backup PLCs Logic Solution Backup Qualification with Svcreq #43Validating the Backup PLCs Input Scan Switching Times Switching Control to the Backup UnitExample 1 Role switches allowed on both units RUN Disabled ModeRUN Disabled Mode for GHS Control Strategy Example 4 Role switches allowed on both units Example 2 Role switches allowed on both unitsExample 3 Role switches not allowed on either unit Backup Active Example 8 Invalid RUN Disabled Mode for GDB Control StrategyCGR772 CGR935 Finding the Words to Checksum Each SweepFinding the Total Sweep Time Finding the Background Window TimeMiscellaneous Operation Information Timer and PID Function BlocksTimed Contacts Multiple I/O Scan SetsSequential Function Chart Programming SFC Stop to RUN Mode TransitionDebugger Background Window TimeGenius Bus Controller Switching Ethernet Global Data Consumption Ethernet Global Data in a Redundancy CPUSntp Timestamping Ethernet Global Data ProductionConfiguration of Fault Actions Fault DetectionFault Detection Message Fault Description Corrective Action PLC Fault Table Messages for RedundancyWith redundancy in other fault groups Fault Response Losing a Link Faulting the Redundancy Communications ModuleFault Actions in a CPU Redundancy System Fault Group Type Description Configurable FaultsFatal Faults on Both Units in the Same Sweep Non-Configurable Fault GroupOn-Line Repair Maintaining Parallel Bus Termination Power SupplyOn-Line Repair Recommendations RacksRedundancy Communications Link Failures Central Processor UnitRedundancy Communications Module and Cables Bus Transmitter Module Single Bus Networks Bus faultsGenius Bus Controller Genius BusGenius Blocks Dual Bus NetworksCabling Information SpecificationsIC690CBL714A Multi-drop Cable PurposeConnector a Connector A, 15-pin Female Index Battery connectors Bus Controller, GeniusIndex Online programming Online repair Svcreq