Carrier RTU-MP, Руководство по интеграции

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RTU-MP Controller 45
Date: 06/30/2008
Vendor Name:
Carrier
Product Names: RTU-MP
Product Model Number: RTU-MP
Protocol Description:
N2 is not a standard protocol, but one that was created by Johnson Controls, Inc. that has been made open
and available to the public. The speed of N2 network is limited to only 9600 baud. The N2 slave address can
be set from 01 to 99.
Product Description:
The RTU-MP is a factory-installed rooftop controller that is capable of speaking multiple protocols. The RTU-
MP controller speaks the Johnson N2 Open Protocol as described in the Metasys N2 System Protocol
Specification (for Vendors) document , revision 6/13/96. Further details on the N2 supported
implementation are described below.
Communication
Types:
Baud
rates:
Data Bits: Parity: Stop Bits:
2-wire EIA-485 9600 8 None 1
Network Point Types:
Analog Inputs (AI)
Binary Inputs (BI)
Analog Outputs (AO)
Binary Outputs (BO)
Internal Floats (ADF)
Internal Integers (ADI)
Internal Bytes (BD)
Protocol Commands:
Identify Device Type
Sync Time
Poll Without Acknowledge
Poll With Acknowledge
Read Analog Input
Read Binary Input
Appendix D: Johnson Controls N2 Protocol Implementation Conformance
Statement