Modbus debugging
Debug screen in Modbus slave type
At a Glance
Type Window
Counters
Window l l l
The specific part is divided into three windows: the Typewindow, the Counterswindow, the Channel testwindow: this window cannot be used in this mode.
The window is as below:
Type
Slave
It recalls the type of Modbus function configured (slave).
The window is as below:
Counters
Received without CRC error
Received with exception code
Reception broadcast
Slave BUSY or LOM
0
0
Received with CRC error
Message for the CPU
Sent 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.
Counter Slave Busy or LOM: l Slave Busy: this counter is incremented by the slave when it receives a request from the master while in the process of processing another request. This happens when the master sends a request. It does not wait for a response from the slave and may send another request, l Slave LOM: (Listen Only Mode) is the operating mode of a slave which is only in listen mode. It never responds to frames sent by the master. In this case, this counter indicates the number of frames received by the slave.
50
TLX DS COM PL7 xxE
