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Programming manual M238 | 3 MB - BERGER - POSITEC

Programming manual M238 | 3 MB - BERGER - POSITEC

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Updating the Controller Firmware<br />

Installing Cables<br />

The Serial Line port(s) of your controller are configured for the SoMachine protocol<br />

by default when new or when you update the controller firmware. The SoMachine<br />

protocol is incompatible with that of other protocols such as Modbus Serial Line.<br />

Connecting a new controller to, or updating the firmware of a controller connected<br />

to, an active Modbus configured serial line can cause the other devices on the serial<br />

line to stop communicating. Make sure that the controller is not connected to an<br />

active Modbus serial line network before first downloading a valid application that<br />

has the concerned port or ports properly configured for the intended protocol.<br />

Before starting the firmware update procedure, ensure you have:<br />

USB cable TCS XCNA MUM3P<br />

Modicon <strong>M238</strong> Logic Controller<br />

NOTICE<br />

UNINTENDED EQUIPMENT OPERATION<br />

Be sure your application has the Serial Line port(s) properly configured for Modbus<br />

before physically connecting the controller to an operational Modbus Serial Line<br />

network.<br />

Failure to follow these instructions can result in equipment damage.<br />

This updating procedure is a maintenance operation. It requires that the controller<br />

be disconnected from the systems and applications it effects. The PC and the<br />

controller must stay connected during this operation.<br />

NOTE: If the PC and the controller are unintentionally disconnected during a<br />

firmware update, the controller will not function correctly until a new, successful<br />

firmware update operation is performed.<br />

Follow these steps to install the cables properly:<br />

Step Action<br />

1 Plug the TCS XCNA MUM3P cable to an USB Port of your PC. (see page 156)<br />

2 Plug the second end of the cable to the USB port of the controller.<br />

3 Launch the Exec Loader Wizard USB (see page 187)<br />

186 EIO0000000384 04/2012

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