Rockwell Automation 20-COMM-H RS485 HVAC Adapter FRN 2.xxx - Manual (Page 48)

5-2 Using Metasys N2
20-COMM-H RS-485 HVAC Adapter User Manual
Publication 20COMM-UM009D-EN-P
Metasys N2 Data Types
Table 5.A Description of the Regions of a Virtual Object
Region Type Short Description
Region 1 Analog Input AI 32-bit, IEEE-standard floats
Region 2 Binary Input BI 1-bit
Region 3 Analog Output AO 32-bit, IEEE-standard floats
Region 4 Binary Output BO 1-bit
Region 5 Internal Float ADF 32-bit, IEEE-standard floats (Analog Data Float)
Region 6 Internal Integer ADI 16-bit (Analog Data Integer)
Region 7 Internal Byte DB 8-bit (Analog Data Byte)
Table 5.B Internal Structure of Metasys N2 Analog Input (AI)
Attribute Type Description
1 Byte Object Configuration
2 Byte Object Status
3 Float Analog Input Value
8 Float Low Alarm Limit
9 Float Low Warning Limit
10 Float High Warning Limit
11 Float High Alarm Limit
12 Float Differential
Table 5.C Internal Structure of Metasys N2 Binary Input (BI)
Attribute Type Description
1 Byte Object Configuration
2 Byte Object Status
Table 5.D Internal Structure of Metasys N2 Analog Output (AO)
Attribute Type Description
1 Byte Object Configuration
2 Byte Object Status
3 Float Current Value
Table 5.E Internal Structure of Metasys N2 Binary Output (BO)
Attribute Type Description
1 Byte Object Configuration
2 Byte Object Status
3 Integer Minimum On-Time
4 Integer Minimum Off-Time
5 Integer Maximum Cycle/Hour
Table 5.F Internal Structure of Metasys N2 Internal Integer (ADI)
Attribute Type Description
1 Byte Object Status
2 Integer Current Value. Signed 16-bit.