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SmartVue Operator’s Manual
86
10-0004-R13
ErrCnt – This is a count of the number of commands issued that resulted in an
error.
CmdCnt – This is the total number of commands issued on the connection since
power-up.
Slave Connections
Name – This is to identify the connection. Either a TCP connection or a serial.
MasterIP – This is the IP Address of the connected master.
Cmd – This is the Modbus Function number of the last command received. A
“D:” preceding the function number means the connection is currently
disconnected.
ErrCmd – This is the function number from the last command that resulted in an
error.
ErrCode – This is the error code from the last command that resulted in an error.
Error code Meaning
1
Modbus exception code 1 was returned by SmartVue. Master sent
a function code that the SmartVue does not support.
2
Modbus exception code 2 was returned by SmartVue. Master
specified an address that the SmartVue does not support. Trying
to write to a read-only address also causes this exception.
3
Modbus exception code 3 was returned by SmartVue. Master sent
a
bad values in the register count or data length fields.
28
Received a command but has a bad CRC.
ErrCnt – This is a count of the number of commands received that resulted in an
error.
CmdCnt – This is the total number of commands received on the connection
since power-up.
Note – for Slave TCP connections the same Master may not always connect to the
same connection. It will connect to the first available.
NOTE: If you are seeing the D: in the Cmd column but also seeing the cmdcnt
increasing then you may have a situation where some commands are succeeding
and some are failing and there are disconnections are reconnections happening at
a very fast rate - faster than the diagnostics screen can show.