ProSoft Technology MVI69-MCM - Manual (Page 86)

Diagnostics and Troubleshooting MVI69-MCM ♦ CompactLogix or MicroLogix Platform
User Manual Modbus Communication Module
Page 86 of 167 ProSoft Technology, Inc.
March 22, 2011
3 Press [?] to open the Main menu.
If there is no response from the module, follow these steps:
1 Click to configure the connection. On the Connection Setup dialog box, select
a valid com port or other connection type supported by the module.
2 Verify that the null modem cable is connected properly between your
computer’s serial port and the module. A regular serial cable will not work.
3 On computers with more than one serial port, verify that your communication
program is connected to the same port that is connected to the module.
If you are still not able to establish a connection, contact ProSoft Technology for
assistance.