Modbus debugging
Modbus Master debugging screen
At a Glance
Type Window
Counters
Window
Channel Test window
The specific part is divided into three windows: l l l the Typewindow, the Counterswindow, the Channel testwindow.
The window looks like this:
Type
Master
It recalls the type of Modbus function configured (master).
The window looks like this:
Counters
Received without CRC error
Received with exception code
Transmission in progress
Retries
0
0
Received with CRC error
Sent without response
Received with NACK
0
0 Character error
Reset counters
0
0
0
0
This window displays the different counters (in slave configuration).
the Reset Counters button resets these counters to zero.
Where Modbus is on the Terminal Port, this window displays the status of the system words (See
System objects of the Modbus function on Terminal port, p. 63)
used by this function. These may also be viewed with a variables animation table.
The window looks like this:
Channel test
Slave
Identification
1
Enter request
Response reception
ASCII Hexa
This window enables you to test communication channels by transmitting a request to one of the slave stations present on the bus.
For the TSX SCY 11601 module's built in channel, the slave number values to be searched lie between 1 and 247. The values for other channels supporting
MODBUS/JBUS Master lie between 1 and 98.
Note: This window is not available when Modbus is in use on the Terminal Port.
TLX DS COM PL7 xxE
49
