Procure now IC695ALG704 GE Fanuc PACSystems RX3i Analog Output Module
Procure now IC695ALG704 to command your precision actuators, variable frequency drives, and proportional flow valves with absolute deterministic accuracy. The GE Fanuc IC695ALG704 is an elite 4-Channel Analog Output Module specifically engineered to harness the high-speed processing power of the PACSystems RX3i PCI Express backplane. Delivering an exceptional 16-bit digital-to-analog conversion resolution, this module ensures that your central CPU’s minute PID logic adjustments are translated into perfectly smooth, continuous voltage or current signals in the field. What defines this module’s superior industrial rating is its channel-to-channel isolation. By physically and electrically separating each of the four output circuits, the IC695ALG704 completely eradicates the threat of ground loops destroying connected field devices or injecting noise back into the PLC rack. Whether you are precisely dosing chemicals or synchronizing multi-axis drive speeds, securing this authentic OEM component guarantees unparalleled operational stability and extends the mechanical life of your highly sensitive control valves.
Core Technical Specifications
- Part Number: IC695ALG704
- Manufacturer: GE Fanuc (Emerson)
- Product Series: PACSystems RX3i
- Module Type: Isolated Analog Output Module
- Channel Count: 4 fully isolated analog output channels
- Output Ranges: -10 to +10 VDC, 0 to 10 VDC, 4 to 20 mA, 0 to 20 mA
- Resolution: 16-bit D/A conversion accuracy
- Backplane Interface: High-speed PCI Express bus integration
Expert Wiring and Loop Power Supply Advice
When deploying the IC695ALG704 to drive 4-20mA current loops, understanding the power architecture is critical. Unlike some basic output modules, this high-performance unit requires an external user-supplied 24 VDC power source to drive the current loops; it does not draw loop power from the RX3i backplane. This design choice prevents heavy field loads from dragging down the PLC’s internal logic voltages. When wiring the external power supply to the module’s terminal block, ensure you utilize twisted-pair, heavily shielded instrumentation cable. Route these analog cables strictly in separate conduits away from massive AC motor leads. Crucially, ground the analog cable shield at the PLC cabinet grounding bar only—never at the actuator end—to prevent circulating AC noise from interfering with the precise milliampere output signal.
Frequently Asked Questions (FAQs)
What happens to the outputs if the RX3i CPU goes into a STOP state? The IC695ALG704 is highly configurable via software. You can individually program each of the 4 channels to exhibit a specific behavior if the CPU stops or loses backplane communication: ‘Hold Last State’ (maintaining the final voltage/current) or ‘Default to Value’ (dropping to a safe, pre-defined baseline like 0V or 4mA).
Can I configure channel 1 for voltage and channel 2 for current simultaneously? Yes. Because the module features full channel-to-channel isolation, every single output channel is independently configurable via the Proficy Machine Edition hardware configuration tool, allowing for a mix of voltage and current outputs on the exact same terminal block.
Is the IC695ALG704 compatible with legacy Series 90-30 backplanes? No. This specific module requires the advanced PCI Express bus architecture to function, meaning it can only be installed in a PACSystems RX3i Universal Backplane (such as the IC695CHS007). It will not physically or electrically operate in an older Series 90-30 chassis.
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