Features:
- 96 MHz processor.
- 512 KB user memory.
- Floating-point calculations.
96 MHz processor establishes the principal capability of
IC697CGR772 within its Series 90-70 function.
The relationship between 512 KB user memory and floating-point calculations determines how the module fits the surrounding rack, network, or field circuit.
During service, redundancy synchronization must remain consistent with the saved application and the installed hardware.
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General Electric IC697CGR772 96 MHz Redundancy CPU with 512 KB Memory Manuals, Datasheets, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Requirements for the primary and secondary CPUs
- CPU role: IC697CGR772 is intended for CPU-redundancy applications and can operate as either controller in the pair.
- Program relationship: Primary and secondary units may run the same program or different programs according to the redundancy design.
- State transfer: Configurable backup data is synchronized between the two CPUs during normal operation.
- I/O arrangement: Common IC660/IC661 Genius I/O is shared by the redundant controller pair.
Maintaining control during a CPU changeover
- Bumpless transfer: The redundancy design transfers control without an intended disturbance to the controlled process.
- Switching time: Most changeovers complete within one controller scan.
- Manual command: A pushbutton on the Redundancy Communications Module can initiate a controlled transfer.
- Online service: Programming and repair can be performed online within the supported redundancy arrangement.
Execution and memory available to IC697CGR772
- CPU core: A 96 MHz 80486DX4 processor executes logic and floating-point calculations.
- User memory: The single-slot CPU contains 512 KB of battery-backed fast CMOS RAM.
- I/O scale: The controller supports 2,048 discrete inputs, 2,048 discrete outputs, and up to 8K analog I/O.
- Serial access: Three SNP ports provide RS-232 and RS-485-compatible service connections.
Information used to isolate a pair fault
- Status bits: Redundancy symptom bits report operating and transfer conditions to the control program.
- Fault tables: CPU and I/O faults remain available for maintenance analysis.
- Data integrity: Memory parity and checksums supervise the synchronized controller data.
- Indicator set: Seven front LEDs distinguish CPU state, run condition, outputs, and communication activity.