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Description
The 8280-339 has several configurable analog and discrete I/Os. This includes eight discrete inputs, four analog inputs, three discrete outputs, and three analog outputs. The analog I/O is rated at 0.5% of full scale and the load share input is rated at 1.0% of full scale. The eight discrete inputs on this controller have a response time of 10 ms ±15%. A variety of accessories are available for use with the 8280-339 controller, including Woodward’s Handheld Programmer (part number 9907-205). I/O and setpoints are configured through this programmer (connected to one of the unit’s serial ports). The programmer is a menu-driven system, so managing the controller is simple even for users without much programming knowledge.
The 8280-219 has integrated diagnostic tests to monitor the control’s baseline power, processor and memory. The 723 control setpoints are stored in the controller’s permanent memory, which retains this data without the need for external power. Setpoints are configured using a menu-driven handheld programmer (Woodward part 9907-205, sold separately) connected to the unit via the serial port. In addition to the three serial ports, the 8280-219 features multiple discrete inputs, analog I/O, load sharing lines, relay outputs, two LON channels, and two alarm outputs. Information on controller I/O can be found in Woodward 723 Digital Controls Product Specification 02759B.
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