Honeywell MC-GHAO11 (51309540-175) – 8-Channel HART Analog Output Module | Experion PKS / TDC 3000
Engineering Background
The MC-GHAO11 is a high-density analog output module engineered for Honeywell’s Experion PKS and legacy TDC 3000 distributed control systems. Designed to meet the rigorous demands of continuous process industries, this module delivers precision 4–20 mA HART-enabled outputs across 8 independent channels, enabling direct field device communication and advanced diagnostics without additional hardware.
Product Positioning
Targeted at instrumentation and control engineers managing refinery, petrochemical, power generation, and pharmaceutical automation infrastructure, the MC-GHAO11 provides a drop-in replacement path for aging I/O infrastructure while maintaining full backward compatibility with existing Experion PKS controller architectures. Konmask.com supplies this module as a verified, tested unit with full traceability documentation.
Complete Technical Specifications
| Part Number | MC-GHAO11 |
| Manufacturer Part Number | 51309540-175 |
| Manufacturer | Honeywell Process Solutions |
| Platform / Series | Experion PKS / TDC 3000 / HC900 |
| Module Type | Analog Output (AO) |
| Number of Channels | 8 Channels |
| Output Signal | 4–20 mA (current loop) |
| HART Protocol | HART 5 / HART 7 compatible |
| Resolution | 16-bit DAC |
| Accuracy | ±0.1% of full scale |
| Load Resistance | 0–750 Ω per channel |
| Isolation | Channel-to-channel and channel-to-bus isolation |
| Power Supply | Supplied via backplane (24 VDC nominal) |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 5% to 95% RH, non-condensing |
| Certifications | CE, UL, FM (Class I, Div 2) |
| Form Factor | Single-slot I/O module, hot-swappable |
| Weight | Approx. 80 g |
| Country of Origin | USA |
Proven Application Environments
- Oil & Gas Refining: Control valve positioner outputs, flow control loops, and pressure regulation in upstream/downstream processes.
- Petrochemical Plants: Reactor temperature and feed rate control via HART-enabled field instruments.
- Power Generation: Turbine governor control, boiler feed water regulation, and generator excitation systems.
- Pharmaceutical Manufacturing: Bioreactor agitation speed, temperature jacket control, and clean-in-place (CIP) valve actuation.
- Pulp & Paper: Consistency control, headbox pressure, and dryer section steam control.
- Water & Wastewater Treatment: Pump speed control via VFD analog reference signals and chemical dosing systems.
Engineering Advantages
- HART Pass-Through: Full HART communication on every channel enables remote device configuration, diagnostics, and secondary variable monitoring without additional multiplexers.
- Hot-Swap Capability: Module replacement without system shutdown minimizes process interruption and maintenance windows.
- High-Density I/O: 8 channels per slot reduces cabinet footprint and wiring complexity versus discrete single-channel solutions.
- 16-Bit Resolution: Ensures fine-grained control precision for critical regulatory loops requiring tight setpoint adherence.
- Galvanic Isolation: Protects controller backplane from field-side ground loops, transients, and fault currents.
- Backward Compatibility: Fully interoperable with existing Experion PKS C200, C300, and legacy TDC 3000 controller nodes.
System Architecture & Signal Flow
The MC-GHAO11 resides in the Experion PKS I/O chassis and communicates with the C200/C300 controller via the FTE (Fault Tolerant Ethernet) backplane bus. Each of the 8 output channels independently converts a digital setpoint from the controller into a precision 4–20 mA current signal delivered to the field device (control valve, VFD, or actuator). HART digital communication is superimposed on the analog signal, enabling bidirectional device communication without interrupting the control loop. The module supports both simplex and redundant I/O configurations when paired with the appropriate redundancy module.
Sourcing & Quality Verification
- All units sourced through authorized industrial surplus and OEM-certified supply chains.
- Each module undergoes incoming inspection: visual, functional power-on test, and firmware version verification.
- Serialized traceability records maintained for every unit shipped.
- Packaging: ESD-safe anti-static bag, foam-lined carton, with desiccant for humidity control during transit.
- Counterfeit mitigation: label authentication, PCB marking verification, and cross-reference against Honeywell OEM documentation.
Procurement Process
- Inquiry: Submit your part number, required quantity, and delivery timeline to [email protected] or via the product page.
- Quote: Receive a formal quotation with unit price, lead time, and shipping options within 24 business hours.
- Order Confirmation: Purchase order accepted via email, Shopify checkout, or wire transfer (T/T).
- Inspection & Dispatch: Unit tested, serialized, and dispatched with packing list and certificate of conformance.
- Delivery: DHL / FedEx / UPS express worldwide; sea freight available for bulk orders. Typical transit: 3–7 business days.
- After-Sales: 90-day warranty on all verified units. Technical support available via email and WhatsApp.
Technical FAQ
Q: Is the MC-GHAO11 compatible with Experion PKS R500 and later releases?
A: Yes. The module is backward compatible with Experion PKS R400 through R500+ when used with supported C200/C300 controllers and current FIM firmware.
Q: Can this module operate in a redundant I/O configuration?
A: Yes, when paired with the appropriate Honeywell redundancy module and configured in the Experion PKS Control Builder, the MC-GHAO11 supports 1:1 redundant output operation.
Q: What is the maximum cable length for the 4–20 mA output loop?
A: With a maximum loop resistance of 750 Ω and standard 24 AWG shielded twisted-pair cable, loop lengths up to approximately 1,500 m are achievable depending on cable resistance per unit length.
Q: Does Konmask provide a certificate of conformance (CoC)?
A: Yes. A CoC with serial number, inspection date, and test results is included with every shipment upon request.
Q: What is the lead time for this part?
A: In-stock units ship within 1–2 business days. Out-of-stock items typically have a 2–4 week sourcing lead time. Contact us for real-time availability.
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