Operating instructions
Diagnostics and Troubleshooting PTQ-MCM ♦ Quantum / Unity Platform
Modbus Communication Module
ProSoft Technology, Inc. Page 83 of 139
April 29, 2008
Values at the bottom of the display are important in determining module
operation. The Program Scan Counter value is incremented each time a
module's program cycle is complete.
Tip: Repeat this command at one-second intervals to determine the frequency of program
execution.
Opening the Database Menu
Press [D] to open the Database View menu. Use this menu command to view the
current contents of the module's database.
Clearing Diagnostic Data
Press [C] to clear diagnostic data from the module's memory.
Opening the Backplane Menu
Press [B] from the Main Menu to view the Backplane Data Exchange List. Use
this command to display the configuration and statistics of the backplane data
transfer operations.
Tip: Repeat this command at one-second intervals to determine the number of blocks transferred
each second.
Opening the Protocol_Serial_ Menu
Press [0] or [1] from the Main Menu to open the Protocol_Serial_ menu for Ports
1 and 2.
Use this command to view communication status and statistics for the selected
port. This information can be useful for trouble-shooting communication
problems.
Transferring the Configuration File from PTQ module to PC
Press [S] to receive (download) the configuration file from the module to your
PC.
Press [Y] to confirm the file transfer, and then follow the instructions on the
terminal screen to complete the file transfer process.
After the file has been successfully downloaded, you can open and edit the file to
change the module's configuration.
Transferring the Configuration File from PC to PTQ module
Press [R] to send (upload) the configuration file from your PC to the module and
store the file on the module's Compact Flash Disk.
Press [Y] to confirm the file transfer, and then follow the instructions on the
terminal screen to complete the file transfer process.