![]() A 24 VDC power supply is built-in to provide up to 150 mA of power to external field transducers. Inputs are universal and support thermistor, dry contact, 0-5 VDC, or 4-20 mA signals. ![]() Programmable timers have a resolution of 100 msec. The TX-653P is designed for high-speed data processing, with an internal DDC loop cycle time of 100 msec. A portable computer running Alerton TDS software can also connect directly to the TX-653P with an optional portable computer cable. ![]() The TX-653P communicates with the Alerton global controller over a two-conductor communication trunk at 9600, 4800, or 1200 baud. ![]() A single TX-653P can contain multiple control loops for various parts or multiple pieces of equipment. This self documenting software includes a complete library of control functions, enabling totally flexible control strategies. All TX-653P control logic is programmed using Alerton's easy to learn DDC programming language. It operates either as a stand-alone controller or as part of a site-wide, integrated DDC system. ![]() Common applications include rooftop units, unit ventilators, central plant equipment, air handling units, and clean room equipment. Alerton TX-653P PLC Programmable Logic Controller for HVAC - The Alerton® TX-653P™ is a high-performance programmable logic controller designed for HVAC and industrial equipment. ![]()
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