P/N 134421
29
Banner Engineering Corp. • Minneapolis, MN U.S.A.
www.bannerengineering.com • Tel: 763.544.3164
SureCross™ DX80 Web Configurator
Instruction Manual
Network Tab
TCP Error Codes
The
TCP Error Codes
page displays error codes encountered when
processing Modbus Client reads and writes via the Modbus/TCP
connection.
Resetting Error Codes
The first occurrence of read and write errors are shown along with the
map number that was processing when the error occurred. Check the
Reset box to the left of the error column and click the Update button
to clear the error. If more than one error is active, the next error code
displays.
The right three columns display an error count for all maps for each
device. Check the Reset box to the left of the Total Messages column
and click Update to reset the counts. Click Update to view the most
recent data values.
TCP Registers
The
TCP Registers
page displays data
mapped by the virtual server user map defined
under
Network > Modbus/TCP Setup > Server
Map
. This is a snapshot of what the remote
client sees when the user map is enabled.
The diagnostic info displays the connection
status for each available connection. A
code of A/B where A is zero is an available
connection, and B indicates the reason for
closing (may be normal TCP close). A value
of A greater than zero and B equal to zero
indicates an active connection.
Error codes (A/B format) indicate the following errors with the first
number:
1: n/a for RTU (Transaction ID out of sync)
2: Exception code returned by remote device
3: Function code mismatch (bad packet)
4: Insufficient data (bad packet)
5: No response from remote device, timed out
6: CRC error in received packet
When A is code 2, indicating an exception code was returned, B
indicates the exception as follows:
1: Illegal function code
2: Illegal data address (the requested register does not
exist in the device)
3: Illegal data value
