Index

specifications, A-1wiring diagram, A-3

Multiple I/O scan sets, 4-21

N

Non configurable faults, 5-9

Non redundant operation, 1-3

configuring, 3-5

O

Online programming, 1-13

Online repair, 1-13

description, 5-10

Output control, 1-9

Output data transfer, 4-6

Outputs disabled, 2-5

Outputs enabled, 2-5

OVR_PRE reference

not available with Redundancy CPUs, 1-4

P

Periodic programs

not available with Redundancy CPUs, 1-4

PID function blocks, 4-21

Power supply

replacement, 5-11

Powerup

sequence for full redundancy at powerup, 4-2

Powerup sequence, 4-2

Primary unit

defined, 1-1diagram, 2-2

Primary Unit

Bus Controller SBA, 1-2powerup sequence, 4-2

Program

application, 3-1folders, 3-1

Program size

for Redundancy CPUs, 1-4

Programming

online, 1-13

R

Racks

failure, 5-11

for redundancy systems, 2-1VME racks not supported, 2-1

Redundancy

defined, 1-1

Redundancy Communications link failures, 5-12

Redundancy Communications Module

configuring, 3-5connector, 2-7faulting, 5-6

IC687RCM711 for dual redundant racks, 1-5IC697RCM711 for standard Series 90-70 racks, 1-5

LEDs, 2-7operation, 2-6summary description, 1-5Unit select pushbutton, 2-6

Redundancy CPUs

CGR772, 2-3

CGR935, 2-3description, 2-2

differences from other CPUs, 1-4expansion memory, 2-3features, 1-3

features of, 2-3keyswitch operation, 2-2LEDs, ports, connectors, 2-4

rack and slot installation requirement, 2-2summary description, 1-5

watchdog timer, 2-3

Redundant CPUs

powerup, 4-2

Redundant racks

IC697CHS770, 1-5

IC697CHS771, 1-5

Remote system

defined, for Redundancy Communications Module, 2-7

Repair

online, 1-13

Run modes, 2-5

Run/Disabled mode, 4-15

different for redundancy CPUs, 1-4

S

Scan sets

multiple, 4-21

Scan synchronization, 4-6

Secondary unit

defined, 1-1diagram, 2-2

Secondary Unit

Bus Controller SBA, 1-2powerup sequence, 4-2

Sequential Function Chart programming, 4-22Serial bus address

assignments in single bus network, 2-11

Service Request. See SVCREQ

Stop I/O Scan mode

not available with Redundancy CPUs, 1-4

GFK-1527A

Index

Index-3

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Image 84
GE 90-70 manual Online programming Online repair