Johnson Controls Metasys N2 Slave Interface Module

1550-N2

The N2 module allows Rockwell Automation Variable Speed Drives to interface directly with Johnson Controls building and energy management controllers. The N2 module functions as a communications gateway providing the interface neccessary to allow a drive to be monitored and controlled over the Johnson Controls N2 link.

Features and Benefits

• Hands Off OperationAfter the N2 module has been set up for operation, the module provides transparent control and monitoring capabilities. The N2 module and Rockwell Automation Drive combination form a tightly integrated solution.
• Installation, Set Up and OperationThe 1550-N2 is available as an external DIN rail mounted module. The products functional characteristics are enabled and controlled with the setting of several dip switches. Each product is shipped with a User Manual detailing the installation and operation.

Applications

Applications benefitting from the N2 module are prevalent in commercial building and energy management projects. Single or multiple drive applications will benefit through reduced installation costs and increased functionality. Application Notes are available for these products.

Functional Specifications

• General capabilities
  • Binary Input/Output
  • Analog Input and Analog Output data type commands supported for primary control/monitoring drive parameters

• Supported Command/Subcommands
  • 0/9: Status Update
  • 1/1: Read Analog Input Attributes
  • 1/2: Read Binary Input Attributes
  • 1/3: Read Analog Output Attributes
  • 1/4: Read Binary Output Attributes
  • 2/1: Write Analog Input Attributes
  • 2/2: Write Binary Input Attributes
  • 2/3: Write Analog Output Attributes
  • 2/4: Write Binary Output Attributes
  • 7/2/3: Override Analog Output (Set drive frequency)
  • 7/2/4: Override Binary Output (Set drive control bits)
  • F: Identify Device Type

• The following commands are recognized and acknowledged by the 1550-N2, but do not impact the operation or return any data
  • 0/0: Time Update
  • 0/4: Poll Message No Acknowledge
  • 0/5: Poll Message with Acknowledge
  • 0/8: Warm Start

• All other commands return a Bad Command Error Code
• Warning and Alarming functions performed on Analog Input and Binary Input data types
• Change Of State Response buffering
  • Available packages 120 VAC Enclosed24 VDC Enclosed

• Communication port connections
  • N2 - Female 9-pin DB - Supports RS-232 and RS-485
  • SCANport - SCANport connector
  • Status LED
  • SCANport Status (bi-color)
  • N2 Status (green): Serial Tx, Rx Status
  • Current Consumption: 60 ma at 24 VDC
  • Input Voltage: 85 to 264 VAC,1 Phase,45 to 63 Hz, 24 VDC
  • Operating Temp: 0 to 50°C
  • Storage Temp: -40 to 85°C

Ordering Information

Distributors:
Place your order by email to orders@prosoft-technology.com:, fax to +1 661-716-5101.

Sales and Support: