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5438-822 - MicroNet LinkNet Controller Module is available in stock which ships the same day.
5438-822 - MicroNet LinkNet Controller Module comes in UNUSED as well as REBUILT condition.
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TECHNICAL SPECIFICATIONS:
Part Number: 5438-822
Manufacturer: Woodward
Series: MicroNet / MicroNet Plus
Module Type: LinkNet Controller
Communication Interface: RS-422 / RS-485 (LinkNet Nodes)
Backplane Interface: MicroNet Parallel Backplane
Baud Rate: 1.25 Mbps (LinkNet Network)
Input Voltage: 5 VDC (from MicroNet Backplane)
Power Consumption: 2.5 Watts (Nominal)
Operating Temp: -30 °C to +65 °C (-22 °F to +149 °F)
Availability: In Stock
Origin: United States
FUNCTIONAL DESCRIPTION:
The 5438-822 is a specialized LinkNet Controller Module designed for the Woodward MicroNet and MicroNet Plus control systems. Its primary function is to act as a communication gateway between the high-speed MicroNet CPU and distributed LinkNet I/O nodes. This allows the system to expand its I/O capacity beyond the physical limits of the chassis by connecting to remote terminal blocks and specialized sensor modules.
DISTRIBUTED I/O MANAGEMENT
The MicroNet LinkNet Controller Module manages the data flow for LinkNet networks, which are typically used for non-critical, slower-changing signals like temperatures and auxiliary pressures. It communicates with LinkNet I/O modules over a shielded twisted-pair cable at a baud rate of 1.25 Mbps. By offloading these auxiliary signals to a distributed network, the 5438-822 frees up the primary MicroNet backplane for safety-critical governing and high-speed protection tasks.
SYSTEM INTEGRATION AND REDUNDANCY
The MicroNet LinkNet Controller Module is fully compatible with redundant configurations. It can be installed in pairs to ensure that if one LinkNet controller fails, the remote I/O data remains available to the control logic via the redundant module. The module features onboard status LEDs that provide immediate visual feedback regarding LinkNet network health and backplane communication status, simplifying on-site maintenance.
RUGGED RELIABILITY
Designed for the demanding environments of power generation and industrial engine control, the MicroNet LinkNet Controller Module is built to withstand high levels of vibration and electrical noise. The module includes robust galvanic isolation to protect the sensitive backplane electronics from field-side transients. Its compact, slide-in design allows for rapid installation and replacement within the standard Woodward MicroNet chassis.
WHY BUY FROM WOC:
World of Controls supports the lifecycle of your Woodward MicroNet systems by offering the 5438-822 in both UNUSED and REBUILT conditions. Each controller module is rigorously tested on functional MicroNet test benches to ensure zero packet loss and perfect backplane synchronization. We maintain a comprehensive global inventory to provide immediate solutions for your turbine and engine control needs. With expert technical support and 24/7 service, WOC is your dependable partner for Woodward industrial hardware.
What is the Woodward 5438-822?
The 5438-822 is a LinkNet Controller module that acts as the communication interface between the main MicroNet CPU and remote LinkNet I/O modules. It enables the control system to monitor and control a large number of distributed field points efficiently.
What is the function of the Woodward LinkNet Controller module?
The LinkNet Controller module serves as the interface between a MicroNet CPU and LinkNet distributed I/O nodes, allowing for the expansion of I/O points outside of the main chassis.
Can this module be used in a MicroNet Plus chassis?
Yes, the MicroNet LinkNet Controller Module is compatible with both the standard MicroNet and the newer MicroNet Plus chassis, supporting both simplex and redundant system architectures.
How many LinkNet nodes can one MicroNet LinkNet Controller Module manage?
While the theoretical limit is higher, a single LinkNet Controller Module is typically used to manage up to 60 LinkNet I/O nodes, depending on the specific update rates required by the application.
How do I troubleshoot a LinkNet Communication Failure?
First, check the Net LED on the LinkNet Controller Module front panel. A flashing or red LED indicates a communication issue. Inspect the shielded twisted-pair cable for integrity and ensure that termination resistors are properly placed at the ends of the LinkNet trunk.
