Carrier WSHP Open v3, Руководство по интеграции

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Appendix C: Modbus Protocol Implementation Conformance Statement
WSHP Open v3 CARRIER CORPORATION ©2021
Integration Guide All rights reserved
46
Date: 11/12/2013
Vendor Name: Carrier
Product Names: WSHP Open
Product Model Number: Water Source Heat Pump
Protocol Description:
The WSHP Open controller speaks the Modicon Modbus RTU/ASCII Protocol as described in the Modicon Modbus
Protocol Reference Guide, PI-MBUS-300 Rev.J. Further details on the Modbus implementation are described
below.
Product Description:
The WSHP Open is a factory-installed water source heat pump controller that is capable of speaking multiple
protocols.
Serial Transmission Mode: Supported?
RTU Slave only
ASCII Not supported
Communication
Types:
Baud rates: Data Bits: Parity: Stop Bits:
2-wire EIA-485, 9600, 19200,
38400, 76800 8 None 1
Function Codes: Purpose: Used with Register
Numbers:
01 – Read Coil Status Read Discrete Outputs 00001 - 65535
02 – Read Input Status Read Discrete Inputs 00001 - 65535
03 – Read Holding Registers Read Holding Registers 00001 - 65535
04 – Read Input Registers Read Input Registers 00001 - 65535
05 – Force Single Coil Write Discrete Outputs (single) 00001 - 65535
06 – Preset Single Register Write Holding Registers (single) 00001 - 65535
15 – Force Multiple Coils Write Discrete Outputs 00001 - 65535
16 – Preset Multiple Coils Write Holding Registers 00001 - 65535
Register Type: Range:
Function Codes Used with this
Register Type:
Float Value (FLOAT)
Single-Precision IEEE floating point
value
3 – Read Holding Register
6 – Preset Single Register
16 – Preset Multiple Register
Appendix C: Modbus Protocol Implementation Conformance Statement