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Configured for precision field signal control and instrument loop driving in PACSystems RX3i platforms, the GE Fanuc IC695ALG728 (IC695ALG728 Non-Isolated Analog Output Module) provides direct physical/electrical execution.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC695ALG728 |
| Brand | GE Fanuc / Emerson |
| Origin | USA / As specified on hardware label |
| Weight | 12.00 lbs (5.44 kg) |
| Dimensions | Standard single RX3i I/O slot footprint |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | 380 mA max @ 3.3 VDC backplane power (HART enabled); 315 mA @ 24 VDC (isolated); 7.25 W max dissipation |
| Channel Count | 8 non-isolated output channels (4 channels per HART modem) |
| Voltage Outputs | +/-10 VDC, 0 to 10 VDC |
| Current Outputs | 0 to 20 mA, 4 to 20 mA |
| Signal Resolution | +/-10V: 15.9 bits; 0-10V: 14.9 bits; 0-20mA: 15.9 bits; 4-20mA: 15.6 bits |
| Output Update Rate | 8 ms approximate (all 8 channels) |
| External Power Supply | +19.2 VDC to +30 VDC (+24 VDC nominal) |
| Isolation Rating | 2550 VDC field-to-backplane for 1 second |
| HART Support | Highway Addressable Remote Transducer (HART) Protocol Version 5.0 |
Backplane Bus Communication Velocity and Firmware Flash Compatibility
The IC695ALG728 integrates two onboard HART modems to support HART Protocol Version 5.0 pass-through, converting dynamic IEEE 32-bit floating point or 16-bit integer data structures across 8 output channels. Executing an analog update rate of 8 ms across all outputs, the module manages current and voltage signal transitions without impacting backplane bus communication velocity. Firmware flash compatibility ensures synchronized parameter execution during system boot sequences and loop configuration updates.
Frequently Asked Questions
Q: What power sources are required to run the IC695ALG728 analog output module?
A: The module requires both backplane power (up to 380 mA at 3.3 VDC with HART enabled) and an external user power supply ranging from +19.2 to +30 VDC (+24 VDC nominal).
Q: What is the maximum load impedance supported for current output loops on the IC695ALG728?
A: The current output drivers support a maximum connected field load of 850 Ohms.
Field Installation Guidelines
- Disconnect backplane power and external 24 VDC user supply lines before inserting or removing the module from the RX3i backplane rack.
- Land field output wiring on the designated terminal block assembly, maintaining channel polarity for 0-20 mA, 4-20 mA, and +/-10 VDC field loops.
- Ground all field cable shielding at the system grounding bar to maintain signal integrity and prevent high-frequency noise interference.
- Ensure external 24 VDC field power supply lines do not exceed the +19.2 VDC to +30 VDC operating window under full load conditions.
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