CONTREX CX-1200 User Manual

Contrex, inc devicenet / cx1200 startup guide

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CONTREX, Inc

DeviceNet / CX1200 Startup Guide

May 1, 2008

Overview:

This guide offers a short-form startup procedure and additional comments regarding the
CONTREX CX1200 controller connections to a DeviceNet network. The CX1200 manual
mentions the setup parameters in chapter 5, under the Main Menu\Setup\DeviceNet Setup.
Detailed DeviceNet specifications are detailed in a separate CX-Series DeviceNet Card manual.
However, that manual is written specifically for the CX1010 and applies only generically to the
CX1200. This short-form guide contains information from both sources, and simplifies the
procedure for most users who meet the "Assumptions" criteria noted below.

Assumptions:

The user is generally familiar with DeviceNet terminology, and wiring practices.
The user is familiar with the specific Host/Scanner card that will control this network.
The Scanner card is probably mounted in a PLC (vs. PC) host controller.
The user is familiar with writing PLC code to manipulate numbers. In particular there
may be a need to move decimal points around by multiply. or divide by 10's.
The primary communications mode will be "Polling", rather than "Explicit Messaging".
The data list (CX1200 parameters of interest) includes no more than 4 "write", nor more
than 4 "read" parameters.


Setup the CX1200:

Go through the Menu pages to Main Menu\Setup\DeviceNet Setup.
Enter a MAC ID value between 1 and 63. This will be the Node Address for your
network. Be sure you do not have 2 devices with the same address.

Enter a baud rate. Choices are 125, 250, or 500 kbaud. All devices on the network must
communicate with the Scanner Card at the same network speed.

Enter the unique product serial number for this network card. It would be found with the
information that came with the card. If you cannot locate it, you may proceed with the
setup anyway, as most host systems probably do not use this information anyway.

Proceed to page 2 of the CX1200 DeviceNet Setup menu. Enter the list of parameters

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