Product Details
The Honeywell PUB6438SR, also cataloged as the PUB6438S Programmable Controller, operates as a dedicated hardware component for HVAC temperature loop management and sequence execution within Spyder BACnet MS/TP networks.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | PUB6438SR (PUB6438S Series) |
| Brand | Honeywell |
| Origin | USA / As specified on hardware label |
| Weight | 0.5 kg (1.1 lbs) typical |
| Operating Temp | -40 to 65 deg C (-40 to 149 deg F) |
| Power Consumption | 20 to 30 VAC @ 50/60 Hz (10 VA max) |
| Network Protocol | BACnet MS/TP |
| Universal Inputs (UI) | 6 channels |
| Digital Inputs (DI) | 4 channels |
| Analog Outputs (AO) | 3 channels (0-10 VDC / 4-20 mA) |
| Digital Outputs (DO) | 8 channels (Triac / Relay) |
4-20 mA HART Loop Protocol and Channel-to-Channel Isolation
The PUB6438SR executes continuous proportional-integral-derivative (PID) loop calculations and output modulating actions across 6 Universal Inputs, 4 Digital Inputs, 3 Analog Outputs, and 8 Digital Outputs. Universal inputs support direct thermistor, RTD, or 0-10 VDC / 4-20 mA HART loop protocol signal conditioning. Channel-to-channel isolation on the field wiring block prevents ground loops and electrical interference from degrading temperature sensing accuracy across multi-stage air handling and terminal unit applications.
Frequently Asked Questions
Q: What power input voltage is required for operating the PUB6438SR controller?
A: The module requires an external AC power source delivering 20 to 30 VAC at 50/60 Hz with a maximum power draw of 10 VA.
Q: How are field sensor inputs and output channels configured on the PUB6438SR?
A: Universal inputs and analog outputs are software-configurable via Honeywell Spyder programming tools to accept temperature sensors, 0-10 VDC, or 4-20 mA signals.
Field Installation Guidelines
- Secure the controller onto a standard 35 mm DIN rail inside a protective NEMA or IP-rated enclosure prior to applying power.
- Route AC power supply wiring (20-30 VAC) in separate conduit channels from low-voltage analog temperature sensor input lines.
- Terminate shield wires from field temperature sensors to a single point cabinet earth ground to maintain signal integrity.
- Set the BACnet MS/TP network MAC address DIP switches and baud rate configuration settings according to the master network segment schedule.
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.
Tech & Buying Guide
Marshalling Cabinet Preventive Maintenance: Essential Healthiness Checks for PLC, DCS, and ESD Systems
Marshalling cabinets serve as the vital interface between field instrumentation and control room electronics in modern process facilities. Regular preventive maintenance of these cabinets ensures signal integrity across programmable logic controllers (PLCs), distributed control systems (DCS), and emergency shutdown (ESD) networks. System technicians must execute structured inspection protocols to mitigate environmental risks, identify loose wiring, and maintain continuous operational readiness.
Spatial Computing in Industrial Automation: Elevating PLC and DCS Operations with AR and VR
Industry 4.0 integrates digital intelligence into field operations, transforming factory automation landscapes worldwide. Spatial technologies—specifically Augmented Reality (AR) and Virtual Reality (VR)—redefine how engineers interact with industrial control systems. By bridging computer-generated CAD models with real-time operational technology (OT) data, immersive displays enable intuitive monitoring, rapid diagnostics, and safer maintenance across complex processing facilities.
Master Acceptance Testing: Understanding FAT and SAT in Industrial Control Systems
Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT) serve as critical quality assurance gateways in complex industrial control systems. Both procedures verify that programmable logic controllers (PLCs), distributed control systems (DCS), and associated field devices meet strict functional specifications. However, executing these tests effectively requires clear delineation between off-site staging and final field commissioning.