Siemens SIMATIC RF610T ATEX System Manual page 479

" " ER" X X ML/ P P LC block
L L ED L L ED ( ( hex)
( ( hex)
-- 0x97 0xE7FE09
-- 0x7A 0xE7FE0A
"--" means that the error is not displayed by the LEDs.
SIMATIC RF600
System Manual, 06/2019, J31069-D0171-U001-A22-7618
E E rror description
Command repetition is not supported.
Error during the transfer of the PDU (Protocol Data Unit).
System diagnostics
9.2 XML/PLC error messages
479