It is necessary to use the following CPU module, FX5-CCLGN-MS, GX Works3 versions.
FX5-CCLGN-MS・・・1.020 or later
FX5U/FX5UC CPU module ・・・1.260 or later
FX5UJ CPU module ・・・1.070 or later
GX Works3・・・1.105 K or later
*If the firmware of the FX5-CCLGN-MS does not support the CANopen communication function, a network error (error code: 2221 H) or initialization failure (event code: 00C54) occurs and the data link will not work.