Modbus Interface 4-4
© 2012 HMS Industrial Networks AB
Doc.Id. HMSI-168-25
15
Read Modbus no response counter.
This is the number of Modbus requests that have been received
and have not had responses sent since bootup or the last coun-
ter reset.
18
Read Modbus receive overrun counter.
This is the number of times that a character has been received
on the serial port before the previous character has been han-
dled since bootup or the last counter reset.
31
Read J1939 status register.
See “J1939 Status Register” on page 4-5 for details on this
value.
32
Read J1939 fault register.
See “J1939 Fault Register” on page 4-6 for details on this
value.
33
Read the J1939 CAN error counter.
This is the number of times the CAN controller error counter
has exceeded the warning limit since bootup or the last counter
reset.
34
Read the J1939 CAN bus-off counter.
This is the number of times the CAN controller has reported
that it is in the bus-off condition since bootup or the last coun-
ter reset.
35
Read the J1939 CAN receive overrun counter.
This is the number of times a CAN frame has been received
before the previous CAN frame has been handled since bootup
or the last counter reset.
Subfunction
Description
Table 4-3 Supported Modbus Diagnostic Subfunctions (Continued)