User's Guide ______________________________________________________________________
146 _________________________________________________________________ M210566EN-J
Diagnostic MODBUS Counters
HMT330 has diagnostic counters that can be used to pinpoint MODBUS
problems. The counters are always active when the MODBUS protocol is
enabled.
Viewing Counters Using Display/Keypad
You can use the display/keypad option to view and clear the counters.
Enter the Main Menu and navigate to System ► Diagnostics
► MODBUS Counters.
1101-037
Figure 74 MODBUS Counters
Viewing Counters Using Service Port
Use the MODBUS command to view the counters:
MODBUS<cr>
Example:
>modbus
Bus messages : 0
Bus comm. error: 0
Bus exceptions : 0
Slave messages : 0
Slave no resp. : 0
Last message :
>
In addition to the diagnostic counters, the last message (received or
transmitted) is shown in hexadecimal format. If the last message was a
broadcast message, the suppressed response message is shown.
The last message displayed may be incomplete if there is active
MODBUS traffic while using the MODBUS command.
To Next Page
Loading...
