Product Details
The Foxboro AD202MW, also cataloged as the AD202MW Analog Output Module, operates as a dedicated hardware component for converting digital controller commands into calibrated analog current signals within Foxboro DCS architectures. The module delivers 4-20 mA output currents across up to 32 channels with 16-bit resolution and a 1 millisecond response time to drive process actuators and control valves.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | AD202MW |
| Brand | Foxboro |
| Origin | USA |
| Weight | 0.45 kg (1.0 lbs) |
| Dimensions | Standard Foxboro module chassis |
| Operating Temp | -40 deg C to +70 deg C |
| Power Consumption | 24 VDC external supply |
| Channel Count | Up to 32 channels |
| Output Signal | 4-20 mA |
| Signal Accuracy | +-0.1% of reading |
| Resolution | 16-bit |
| Sampling Rate | 100 Hz |
| Response Time | 1 millisecond |
| Loop Resistance | 250 ohm |
| Process Connection | 1/2" NPT |
Channel-to-Channel Isolation and Loop Protocol Connectivity
The Foxboro AD202MW incorporates internal isolation circuitry between output channels and system backplane logic to isolate control loops from ground potentials. Its 16-bit digital-to-analog architecture stabilizes 4-20 mA HART loop protocol current drivers under varying load conditions up to 250 ohm loop resistance, maintaining signal purity for final control element positioning.
Frequently Asked Questions
Q: What output signal protocol and dynamic range does the AD202MW support?
A: The module generates 4-20 mA analog output signals across up to 32 channels at a 100 Hz sampling rate.
Q: What loop load resistance can be driven by the AD202MW outputs?
A: The module outputs are rated for standard loop loads up to 250 ohm operating from a 24 VDC supply rail.
Field Installation Guidelines
Mount the AD202MW directly into its designated baseplate slot, ensuring top and bottom chassis latches engage securely to maintain backplane contact pressure. De-energize 24 VDC field power sources prior to inserting or removing module connection assemblies.
Route 4-20 mA field output conductors using shielded twisted-pair wire in separate cable trays away from high-voltage motor wires or switching inductive loads. Connect cable drain shields to the central enclosure grounding bar. Where field cabling enters through 1/2" NPT process connections or enclosure glands, verify that threaded joints achieve a minimum of 5 full threads of engagement to maintain physical strain relief.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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