Product Overview
The Woodward 9905-969 is a Linknet 6-Channel Analog Input Module (4-20mA) designed for distributed I/O in industrial automation. Part of the NetCon control system family, this module enables low-cost, simple implementation of remote I/O for non-turbine tasks like sequencing and monitoring. With its rugged construction and precise 1% accuracy, the 9905-969 delivers reliable signal acquisition in demanding environments.
Technical Specifications
Below are the key parameters for the Woodward 9905-969 Industrial Automation Module:
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Part Number: 9905-969
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Manufacturer: Woodward
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Dimensions: 14W x 11H x 4D inches
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Display: 2 line x 24 characters with 30 Multi-function Keypad
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Accuracy: 1% at 25 °C
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Power Supply Input: 18 to 32 Vdc
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Input Voltage: +24 Vdc at 1 A
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Temperature Range: -40 to +55 °C
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Humidity: 20-55°C at 95% for 48 hours
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Weight: 9.11 lbs
The module includes isolation ratings: Network to I/O channel 277 Vac, Power supply input to network 277 Vac, and Power supply input to I/O channel 500 V.
Industry Applications
The Woodward 9905-969 analog input module excels in remote monitoring and control applications where distributed I/O reduces wiring costs. Typical uses include:
- Oil and gas pipeline monitoring – the 9905-969 can handle 4-20mA signals from pressure and flow transmitters across long distances.
- Water treatment plants – remote I/O cabinets collect sensor data via LINKnet, simplifying installation and maintenance.
- Industrial boiler control – the module acquires temperature, pressure, and level signals reliably even in harsh environments.
Installation & Setup Guide
Each LINKnet module is housed in a plastic Phoenix field termination package for DIN rail mounting. Two rotary switches on the module set the network address (1 to 60), which must match the MOE coder configuration. Use a single twisted pair wire to connect each node to the NetCon controller. Ensure the environment stays within the -40 to +55°C temperature range and avoid condensation above 95% humidity.
Maintenance & Reliability
With solid-state components and no moving parts, the 9905-969 requires minimal periodic inspection. Check for dust accumulation on the keypad/display area and verify that all network connections remain secure. The module’s wide temperature tolerance and high isolation ratings reduce downtime in critical processes. For long-term reliability, maintain ambient humidity below 95% non-condensing.
Compatibility & Integration
The 9905-969 is part of Woodward’s LINKnet distributed I/O family, designed to work with NetCon controller modules. A single NetCon module can manage up to four independent trunks, each with up to 60 I/O modules (240 total). The network uses twisted pair wiring and supports multiple rate groups defined in MOE coder software. This module is also compatible with other LINKnet I/O types (discrete, RTD, thermocouple, relay output) for complete system flexibility.
Selection Guide & Purchasing Advice
When ordering the Woodward 9905-969, verify your input signal type (4-20mA) and power supply (18-32 Vdc). Ensure your NetCon controller has available LINKnet channels. For large systems, plan trunk lengths and address assignments carefully. PLC Source PRO (ubest101.myshopify.com) stocks genuine Woodward modules with fast shipping. Contact our team if you need help configuring your I/O network.