RS-232 Contact Closure Detection

The Most Powerful Command Set Available Anywhere
Read Sensors & Trigger Relays with Contact Closure
Direct Wire or DB9 Connections Available

RS-232 Contact Closure Monitoring

With this Scan Series Controller you can monitor Contact Closure Inputs using a computer.  With minimal programming, data collection and control from a single controller allows any computer to talk this device through an RS-232 connection.  The SCAN Series command set allows you to read anywhere from 1 to 32 banks of 8 inputs in a single query.  A single bank contains 8 inputs.  Reading 32 banks will report the status of 256 inputs.  It doesn't stop there, because we are focused on relay control you can add relays to the board (up to 256) and control them using the data collected from the inputs.  Remember these are contact closure inputs ONLY no voltage can be applied to these inputs.

Mounts as a COM Port

This ProXR Lite series controller connects to the RS-232 port of your computer and requires a 12VDC Power Supply.  This ProXR series controller connects to the serial port of your computer and will mount as a COM port on your PC.  Once powered up, the controller waits for a command.  A command consists of a few bytes of data in numerical format usually between 2 and 6 bytes.  Once the command has been received, the controller processes the command, and sends you back ASCII character code 85 to signal the completion of your command.

ZRS ModulesRS-232 Relay ZRS Module

This board is equipped with a ZRS Module.  The ZRS communications module adds RS-232 communications to the board.  The ZRS module is powered from the serial port of your computer.  The board itself will require 12 volts of power and can be hard wired or you can purchase a "wall wart" type transformer at checkout.

Three RS-232 Connection Options

There are three RS-232 connection options available for this controller.


ZRS-A
Wire It Up
ZRS-B
Plug It In
ZRS-AB
Both!

Choose the connection that fits your needs. The ZRS-A connection is recommended for applications where hard wiring directly to the board is needed. ZRS-B has the fill 9-Pin RS-232 connector on the board. The ZRS-AB Has the fill 9-Pin connector but is is located off the board for applications where the board may be place inside an enclosure an the RS-232 connector needs to reach to the side of the enclosure.  You can choose one of these connection options at checkout.

Sending Commands

Base Station Software is available at no charge to get you up and running fast (more on Base Station below).  Once powered up, the controller waits for a ProXR command.  A command consists of a few bytes of data in numerical format (see SCAN Series command summary) usually between 2 and 6 bytes.  Once the command has been received, the controller processes the command, and sends you back ASCII character code 85 to signal the completion of your command.