Operating instructions
PTQ-MCM ♦ Quantum / Unity Platform  Diagnostics and Troubleshooting 
Modbus Communication Module 
Page 84 of 139  ProSoft Technology, Inc. 
April 29, 2008 
After the file has been successfully downloaded, the module will restart the 
program and load the new configuration information. Review the new 
configuration using menu commands [6] and [0] to verify that the module is 
configured correctly. 
Warm Booting the Module 
Caution: Some of the commands available to you from this menu are designed for advanced 
debugging and system testing only, and can cause the module to stop communicating with the 
processor or with other devices, resulting in potential data loss or other failures. Only use these 
commands if you are specifically directed to do so by ProSoft Technology Technical Support staff. 
Some of these command keys are not listed on the menu, but are active nevertheless. Please be 
careful when pressing keys so that you do not accidentally execute an unwanted command. 
Press [W] from the Main Menu to warm boot (restart) the module. This command 
will cause the program to exit and reload, refreshing configuration parameters 
that must be set on program initialization. Only use this command if you must 
force the module to re-boot. 
Exiting the Program 
Caution: Some of the commands available to you from this menu are designed for advanced 
debugging and system testing only, and can cause the module to stop communicating with the 
processor or with other devices, resulting in potential data loss or other failures. Only use these 
commands if you are specifically directed to do so by ProSoft Technology Technical Support staff. 
Some of these command keys are not listed on the menu, but are active nevertheless. Please be 
careful when pressing keys so that you do not accidentally execute an unwanted command. 
Press [Esc] to restart the module and force all drivers to be loaded. The module 
will use the configuration stored in the module's Flash ROM to configure the 
module. 
7.1.4  Modbus Database View 
Press [D] to open the Modbus Database View menu. Use this command to view 
the module's internal database values. Press [?] to view a list of commands on 
this menu. 
All data contained in the module's database is available for viewing using the 
commands. Refer to Modbus Protocol Specification (page 114) for information on 
the structure of Modbus messages. Each option available on the menu is 
discussed in the following topics. 










