The IC695ALG708 functions as a high-performance non-isolated analog output module for the PACSystem RX3i platform. Emerson Automation currently manufactures this module, continuing the legacy of GE Intelligent Platforms. Engineers use this module to convert digital control signals into precise analog commands for field devices. Consequently, it provides seamless communication between the controller and actuators like valves and drives.
Core Output Architecture and Configuration
This IC695ALG708 module features eight independently configurable output channels for maximum application flexibility. Each channel can generate either current signals or voltage signals based on specific process requirements. For current-based applications, the module supports both 0 to 20 mA and 4 to 20 mA signal ranges. For voltage-driven devices, it provides both ±10V and 0 to 10V output capabilities. This dual-function design reduces inventory requirements by using a single module type for multiple applications.
Technical Specifications and Physical Characteristics
Understanding the precise specifications of the IC695ALG708 ensures proper integration into your RX3i control system. The module occupies a single slot in the universal backplane and offers impressive resolution across all ranges. Below you will find a comprehensive breakdown of its technical parameters:
| Specification Category | Detailed Parameter |
|---|---|
| Product Type | Non-Isolated Analog Output Module |
| Manufacturer | GE Fanuc / Emerson Automation |
| Series | PACSystem RX3i |
| Part Number | IC695ALG708 |
| Weight | 0.94 lbs (0.43 kg) |
| Number of Channels | 8 differential outputs |
| Current Output Ranges | 0 to 20 mA, 4 to 20 mA |
| Voltage Output Ranges | 0 to 10 VDC, ±10 VDC |
| Module Resolution | ±10V: 15.9 bits; 0-10V: 14.9 bits; 0-20mA: 15.9 bits; 4-20mA: 15.6 bits |
| Data Formats | IEEE 32-bit floating point; 16-bit integer in 32-bit field |
| Update Rate | 8 milliseconds (all eight channels) |
| Output Settling Time | 2 milliseconds to 95% of final value |
| Maximum Output Load | 850 Ohms (current mode) |
| Isolation Voltage | 2550 VDC for 1 second (field to backplane) |
Power Requirements and Energy Management
The IC695ALG708 draws power from both the backplane and an external power supply for optimal performance. It requires 375 milliamps at +3.3 VDC from the RX3i backplane for logic operation. Additionally, the module needs 315 milliamps at +24 VDC from an isolated external source for output circuitry. This external supply must provide 19.2V to 30V with a nominal rating of 24V. The module’s maximum power dissipation reaches 7.25 Watts under full load conditions.
Installation and Integration with RX3i Systems
Mounting the IC695ALG708 requires a standard RX3i universal backplane with an available slot. The module connects directly to field wiring through the front-mounted terminal block. Users can configure each channel individually using the programming software for maximum flexibility. The module supports both floating point and integer data formats for compatibility with various applications. Its fast 8-millisecond update rate ensures responsive control for dynamic processes.
Reliability and Industrial Applications
The IC695ALG708 undergoes rigorous testing to meet Emerson’s standards for industrial automation equipment. It suits a wide range of applications including process control, manufacturing, and material handling systems. The module’s non-isolated design provides cost-effective analog output for general-purpose applications. For facilities operating PACSystem RX3i controllers, this module offers a reliable output solution. Its availability ensures long-term support for existing automation investments without requiring platform migration.
Details
| Weight | 0.1 kg |
|---|---|
| Dimensions | 25 × 108 × 127 mm |
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