User manual

Magelis B - 49
9. Setting the display unit parameters
B
 Line parameters
This system page is used to display information relating to the
communication protocol, such as the speed or parity.
Error counters also appear on this page, and their meaning is as follows:
Counter Modbus Modbus Slave Uni-Telway
1
Number of responses
received without a
CRC error by the
master
Number of messages
received by the
terminal, whether or
not they are relevant
Number of messages
sent and not
acknowledged
2
Number of messages
received with a CRC
error by the master
Number of messages
received with a CRC
error
Number of messages
sent and refused
3
Number of exception
responses received by
the master
Number of error
messages returned by
the terminal
Number of messages
received and not
acknowledged
4
Number of broadcast
requests sent by the
master
Number of correct
messages received by
the terminal
Number of messages
sent and refused
5
Number of requests
still awaiting a
response
Number of broadcast
messages received by
the terminal
Number of messages
sent correctly
6
Number of ‘PLC not
ready’ responses
received by the master
Always at 0
Number of messages
received correctly
7
Number of incorrect
characters received
Number of messages
not processed
because the terminal
was not ready
Number of emitting
frames sent
8
Number of requests
correctly executed
Number of messages
received with parity
errors, format errors,
etc.
Number of receiving
frames received
9/
Number of correct
messages received
and processed by the
terminal
/
XBT ref. Note
N200 No access to the "System" system page