Error Code Registers, 89-99; Read/Write Registers, 100-65535 - ABB PRO-33.0-TL Service Manual

Error code registers, 89-99


The error code registers can be read to find out why a Modbus read/write operation fails
with code 0x04. The registers contain additional information on failing query. The internal
error register is cleared when a query has finished successfully.
Ref Name (all profiles)
89 Reset Error Registers
90 Error Function Code
91 Error Code
92 Failed Register
93 Last Register Written
Successfully
94 Last Register Read
Successfully
95-99 Not used

Read/write registers, 100-65535


The Modbus interface can be set up to use one of several addressing schemes (modes)
for accessing the configuration and control parameters of the inverter. The addressing
modes are described below. The parameter
addressing scheme the Modbus interface uses.
•
Mode 7 - default addressing mode. All register data transactions are 32-bit wide. All
16-bit parameters of the inverter can also be read/written in this mode. However, the
Modbus master must specify the number of registers as two (2) whenever a 16-bit
parameter is to be written or read.
•
Mode 1 - addressing mode that can only handle 16-bit parameters. Note that many of
the parameters of the inverter cannot be accessed by this mode.
Reset internal error registers (registers 91...95).
0 = do nothing
1 = reset
Function code of the failed query
This error code is set when the device responds with an error
code of 4 (Device Failure).
0x00 – No error
0x02 – Low/High limit exceeded
0x03 – Faulty Index - access to an unavailable index of an
array parameter
0x05 – Incorrect Data Type - value does not match the data
type of the parameter
0x65 –General Error - Undefined error when handling a
Modbus query
The last register that failed to be read or written. This register
can be any of the following: discrete input, coil, input register,
or holding register.
The last register that was written successfully. This register
can be any of the following: discrete input, coil, input register,
or holding register.
The last register that was read successfully. This register can
be any of the following: discrete input, coil, input register, or
holding register.
158.33 Addressing mode
Fieldbus interfaces 105
Description
selects the