ABB FMBT-21, Руководство пользователя

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The internal error register area is used if Modbus error code 0x04 occurs. The registers
contain information about the last query. You can figure out the reason of the failure
by reading the registers. The internal error register is cleared when a query has finished
successfully.
Registers (16-bit word) Address
Reset internal error registers (0 = Do nothing, 1 = Reset) (4)00090
Function code of the failed query (4)00091
Internal error code; see the error number. (4)00092
Failed register (4)00093
Last register that was written successfully (4)00094
Last register that was read successfully (4)00095
Situation Description Error code
Used when a Modbus query was success-
ful No error 0x00
Change access with a value outside the
value limits Low or high limit exceeded 0x02
Access to an unavailable subindex of an
array parameter Faulty subindex 0x03
Change access with a value that does not
match the data type of the parameter Incorrect data type 0x05
Undefined error when handling a Modbus
query General error in drive communica-
tion 0x65
Timeout in drive communication when
handling a Modbus query Timeout 0x66
An attempt to write a non-zero value to
a read-only drive parameter Read-only 0x70
An attempt to write to multiple paramet-
er groups Parameter group ended 0x71
An attempt to write a 16-bit parameter
with a 32-register address and the MSB
bytes are not zero MSB is not zero 0x72
An attempt to access only the LSB re-
gister of the 32-bit parameter LSB query start 0x73
An attempt to access only the MSB re-
gister of the 32-bit parameter MSB query end 0x74
Modbus/TCP – Diagnostics 57