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© 2017 CoolAutomation

CoolPlug PRM

Document Revision 0.1     10/3/2017

www.coolautomation.com

CoolPlug
Universal Interface Adapter 
for HVAC Systems

Summary of Contents for CoolPlug

Page 1: ... 2017 CoolAutomation CoolPlug PRM Document Revision 0 1 10 3 2017 www coolautomation com CoolPlug Universal Interface Adapter for HVAC Systems ...

Page 2: ...2 Contents CoolPlug PRM www coolautomation com 2017 CoolAutomation Table of Contents 1 Document Revision History 3 2 Modbus Interface 4 5 2 1 Modbus Register Map ...

Page 3: ...Document Revision History CoolPlug PRM Rev 0 1 3 www coolautomation com 2017 CoolAutomation 1 Document Revision History 0 1 Initial ...

Page 4: ...tion to Modbus is Two Wire EIA TIA 485 standard interface via 485 A and 485 B terminals recommended by Modbus specification On such 2W bus at any time only one driver has the right for transmitting thus a Modbus communication is always initiated by the master CoolPlug will never transmit without receiving a request from Modbus master A number of CoolPlug devices can be connected to single 2W bus E...

Page 5: ...lure 1 indoor reports failure bit3 0 normal operation 1 device in boot mode bit4 0 line configured 1 line not configured bits5 15 Reserved 0061 97 Compact indoor status r bit0 0 on off bits 1 5 mode see mode encoding bits 6 9 fan speed see fan speed encoding bits 10 12 louver see louver position encoding bit13 filter sign bit14 therm on 0062 98 Set temperature r w ºCelsius x10 0063 99 Ambient temp...

Page 6: ...s on wire are less by 1 then specified in table If nothing specified register is supported in any version and or type N A means future option Mode Encoding Cool 0 Heat 1 Auto 2 Dry 3 HAux 4 Fan 5 Fan Speed Encoding Low 0 Medium 1 High 2 Auto 3 Top 4 Very Low 5 Louver swing position Encoding Vertical 0 30º 1 45º 2 60º 3 Horizontal 4 Auto 5 Off 6 No 7 ...

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