IC695ALG808 Analog Input Modules PACSystems RX3i GE Fanuc

The GE Fanuc IC695ALG808, also cataloged as the IC695ALG808 Analog Input Module, operates as a dedicated hardware component for analog-to-digital signal processing within PACSystems RX3i platforms. The module executes signal acquisition across multiple channels, converting input source currents or voltages into digital integers accessible by the controller CPU. It provides physical isolation barriers between field wiring terminals and the internal backplane logic circuit.

Hardware Specifications

Profinet/EtherNet/IP Deterministic Networks and Platform Compatibility

The module integrates directly into standard RX3i universal backplanes, communicating via the high-speed PCI bus segment. When deployed in distributed topologies via remote network interface units, data synchronization maps directly onto Profinet or EtherNet/IP deterministic networks. Proper operation requires validation of firmware flash compatibility within both the controller CPU and the network module to enforce predictable scan times and avoid I/O dropouts during cyclic transmission intervals.

Frequently Asked Questions

Q: Does the IC695ALG808 support hot-swap capabilities within the PACSystems RX3i chassis?

A: Yes, Hot Insertion and Removal (RIUP) is supported when utilizing a universal RX3i backplane. System power to adjacent modules remains uninterrupted during substitution sequences, provided the field terminal block is safely disconnected.

Q: How is the channel configuration retained within the hardware during power failure events?

A: Parameter blocks and scale ranges are downloaded from the CPU controller to the non-volatile memory of the module during initialization. The configuration remains fixed until a hardware configuration change is commanded by the master application program.

Field Installation Guidelines

• Terminal Block Alignment: Ensure the terminal block mechanisms align properly with the module face markings before driving the retention screws to avoid physical PIN deformation.
• Shield Continuity and Grounding: Terminate cable shields at the designated chassis grounding bar using low-impedance connections. Do not loop ground paths or route shields through terminal blocks alongside signal pairs.
• Inductive Load Separation: Maintain a physical clearance minimum of 100 mm between low-voltage analog cables and high-power AC lines or motor controller lines inside the cabinet routing tracks.
• Current Loop Resistors: External current shunt resistors are not required when configured for 4-20 mA mode, as the module contains internal current sensing hardware circuits.