Adds 4 additional analog outputs to a gas detection system

 

Adds four channels of 4 - 20 mA analog output to a Modbus® RS-485 network configured with a QCC Quad Channel Controller or an FCS Flexible Control System Controller

 

Key Features

  • Four 4-20 mA output channels
  • Power LED indicator
  • Modbus® RS-485 RTU communication
  • Scaling and zoning capabilities supported by the ontroller
  • Configurable default settings for any interruption in communication
  • Standard water / dust tight, corrosion resistant enclosure

 

Description

The LNK-AO Analog Output peripheral device adds four channels of 4 - 20 mA analog output to a Modbus® RS-485 network configured with a QCC Quad Channel Controller or an FCS Flexible Control System Controller. The LNK-AO is designed to send a 4 - 20 mA signal to up to four devices such as a data / trend / logging system, a BAS or DDC or up to four VFDs.

The four 4-20 mA output signals are current sourced and can be independently scaled using the menu system on the controller. Each output can be assigned to an individual sensor or to a group of sensors through zoning configured within the controller. Communication with the controller is monitored and if interrupted a pre-configured default current will be output in each channel.

 

 

LNK-AO Analog Output Peripheral Device

  • Mechanical

     

    Enclosure

    ABS / Polycarbonate, corrosion resistant

     

    Copper coated interior to reduce RF interference

    Weight

    400 g / 14 oz

    Size

    127 x 127 x 71 mm / 5.0 x 5.0 x 2.8 inches

    User Interface

     

    Indicator

    LED green indicator for power

    Input/Output

     

    Output

    Four 4-20 m A (2 - 10 volts is obtainable using a 500 Ohm resistor)

    Communication

    Modbus® RS-485 RTU

    Electrical

     

    Power Requirement

    24 VDC, 3W, Class 2 (24 VDC supplied by the Controller)

    Wiring

    4-conductor shielded minimum 18 AWG stranded within conduit

    Fuses

    Thermal, resetting

Copyright© 2020 by Tops Instruments Supplies Co. graphics, data sheet, photos and videos all rights reserved.