Appendix; Error List - Mitsubishi Electric CR800 Series Ethernet Function Instruction Manual

4. Appendix

4.1. Error list

The errors which occur only when the Ethernet function is used are listed as follows.
Error No.

Cause) ***** parameter is wrongly set. (The parameter name is input in *****.)
7810
Measures) Check the setting content of the parameter.

Cause) The time set in parameter MXTTOUT was exceeded.
7820
Measures) Check parameter MXTTOUT.

Cause) The command argument and data type do not match.
7840
Measures) Check the contents of the command and the communication data packet to be transmitted.
Setting error of SLMP parameter.

Cause) The communication port numbers (parameter: SLMPPORT) overlap with another function.
7860
Measures) Change the parameters so that the communication port numbers to not overlap with another
function.
CC-Link IE Field Network Basic communication error.

Cause) Communication using CC-Link IE Field Network Basic has been disconnected.
7870
Measures) Check whether the network cable is connected, and check the settings for time out on the
master side and other parameters.
For the other errors except these, refer to the errors list of the instruction manual of the controller.
Parameter ***** setting error of Ethernet interface parameter.
MXT Command time out.
Received MXT command data illegal.
Error causes and remedies
4 Appendix
4-1