Bus Transmitter Module, Connectors | GE 90-70 guide

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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

Image 29

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

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 Introduction Enhanced Hot Standby CPU Redundancy Compatibility with CPU780 Using the Redundancy CPU for Non-Redundant Operation Differences 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 Redundancy Cable Connections Genius I/OLocal I/O Local I/0 Can be Enhanced Hot Standby CPU Redundancy System with Local I/O GDB 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 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 Duplex CPU Redundancy Online ProgrammingOn-Line Repair System Racks For Installation InstructionsSystem Components Redundancy CPU Features Expansion Memory Board Watchdog TimerCPU Architecture 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 Status LEDs ConnectorsBus Transmitter Module Bus Receiver Module Status LEDs Bus Receiver ModuleCables and Termination 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 Logic Solution Backup Qualification with Svcreq #43Validating the Backup PLCs Input Scan Switching Times Switching Control to the Backup Unit Example 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 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 Link Failures Central Processor UnitRedundancy Communications Module and Cables 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