Data Transmission Rs Interfaces - promesstec UREG 200 User Manual

Universal controller
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Example:
OUT2 = COOL, PB1 = 10,0°C, CBP = 50, PL1 = 50%, PL2 = 80%
You can see the control process in picture.
Control limit
Note:
In manual operation or in case of error, the control limitation of MV1
(heating) with PL1 and MV2 (cooling) with PL2 is deactivated.

7.8 Data transmission RS interfaces

Two interface cards are available for data transmission in the UREG200, one RS232
interface (type code -1) or one RS485 interface (type code -2). Two major
considerations should be made when selecting the interface.
1. how many participants do I want to connect?
- For more than one participant → RS485
- For one participant → RS232 or RS485
2. how long is my overtagging distance?
- Over 20m line path → RS485
- Up to 20m line path → RS232 or RS485
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