Product Details
The Emerson A26-00139, also cataloged as the A26-00139 PLC Module, operates as a dedicated hardware component for direct logic processing and signal conditioning execution within Emerson control system backplanes. It processes digital and analog system parameters while interfacing directly across the internal cabinet communication bus.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | A26-00139 |
| Brand | Emerson |
| Base Model | A26-00139 |
| Origin | USA |
| Weight | 0.3 lbs (0.14 kg) |
| Dimensions | 2.5 cm x 27.9 cm x 25.4 cm |
| Operating Temp | Standard cabinet enclosure rating |
| Power Consumption | Internal backplane bus powered |
| Module Type | Programmable Logic Controller Module |
| Certification | CE certified |
Channel-to-Channel Isolation and Cold Junction Compensation (CJC)
The A26-00139 PLC module features galvanic channel-to-channel isolation to prevent electrical crosstalk and common-mode voltage interference from corrupting processing logic. Integrated signal conditioning circuitry maintains high accuracy across field sensor interfaces, supporting cold junction compensation (CJC) protocols when processing thermocouple inputs and direct field instrument loops across distributed control topologies.
Frequently Asked Questions
Q: Does the A26-00139 PLC module draw power from an external supply or the chassis bus?
A: The module receives regulated operating voltage directly through its primary backplane edge connector upon physical insertion into the rack chassis.
Q: What environmental certifications apply to the A26-00139 hardware assembly?
A: The module carries official CE certification compliance for electromagnetic compatibility and low-voltage safety directives in industrial panel enclosures.
Q: How is mechanical alignment handled during module replacement?
A: The module relies on integrated alignment rails within the rack slot to guide rear card-edge contacts into full mating engagement with the backplane receptacle.
Field Installation Guidelines
- Isolate primary system power before inserting or removing the PLC module from the backplane rack.
- Align the top and bottom edges of the card assembly with the panel chassis guide tracks.
- Slide the module into the slot until the rear connectors click securely into the backplane bus socket.
- Fasten all panel retaining screws to ensure proper earth grounding and continuous vibration resistance.
- Inspect field wiring terminals to ensure signal cable shielding is earthed at a single grounding point.
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
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.
Industrial Networking Essentials: Demystifying Hubs, Switches, and Routers in Control Systems
Industrial automation relies heavily on robust networking infrastructure to connect programmable logic controllers (PLCs), distributed control systems (DCS), and human-machine interfaces (HMIs). Modern factory automation environments generate vast amounts of real-time operational data across deterministic networks. Understanding the structural differences between hubs, switches, and routers ensures optimal traffic segmentation, minimizes latency, and maintains high network availability.
Safety Relays in Industrial Automation: Fundamentals, Design Standards, and Fail-Safe Architecture
Safety relays form the bedrock of functional safety in modern factory automation, preventing catastrophic equipment failure and protecting plant personnel. While standard electromechanical relays handle basic load switching, they lack the redundant diagnostics required for high-risk industrial environments. Modern industrial automation platforms—including programmable logic controllers (PLCs) and distributed control systems (DCS)—rely on specialized safety relays to monitor field devices and isolate hazards instantly.