Zone & Unitary Controllers
Modbus Communication General-Purpose Digital Controller
Modbus Communication General-Purpose Digital Controller
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Overview
R7428C6646 is a general-purpose digital controller designed by Honeywell for air conditioning equipment control applications. R7428C6646 has networking functions, and both communication interfaces adopt ModBus RTU communication format widely used in the industry. R7428C6646 has the best flexible design and expansion space for both stand-alone operation and a networked control .
Features & Benefits:
- Regional networking function (two sets of RS485 ModBus RTU ports);
- Provide HVAC and general control low-cost, cost-effective solutions
- High precision control: Temperature ± 0.1°C and relative humidity ± 0.5%
- Set values are saved permanently
- With PID (Proportional Integral Difference) control
- Simple programming tools
- 132 KB flash memory program space
