Delta AH500 - Page 581

AH500 Hardware and Operation Manual
12-32
Error
Code
Description Solution
16#6606
There is a routing response
timeout.
1. Check the network configuration in NWCONFIG.
2. Check whether the setting of the communication
timeout conform to the practical application.
16#6700
An error occurs when a Modbus
TCP data exchange is initialized.
Please check setting values, and download them again.
16#6701
Modbus TCP data exchange
timeout
Please check whether the remote device supports the
Modbus communication protocol.
16#6702
The data received by means of a
Modbus TCP data exchange is
incorrect.
Please check whether the remote device supports the
Modbus communication protocol.
16#7002
The CPU module does not support
the function.
Please check the version of the firmware installed on the
CPU module.
16#7203 Invalid access code
Please check the contents of the packet sent by the
remote device.
16#7401 Function code error
Please check the contents of the packet sent by the
remote device.
16#7402
The size of a packet exceeds the
maximum data length.
Please check the contents of the packet sent by the
remote device.
16#7404 Packet format error
Please check the contents of the packet sent by the
remote device.
16#7405 The number of bytes is incorrect.
Please check the contents of the packet sent by the
remote device.
16#7406 Checksum error
Please check the contents of the packet sent by the
remote device.
16#7407
There are non-ASCII characters in
a command.
Please check the contents of the packet sent by the
remote device.
16#7408 The PLC is running.
When the PLC is running, data such as a program and
CPU parameters can not be downloaded to the PLC.
16#740A
Data is being written to the
memory in the PLC or data fails to
be written to the memory in the
PLC.
Data is being written to the flash memory/SD card.
Please try again later.
16#740B
The CPU module is being reset, or
the values in the laching devices
are being cleared.
The CPU module is being reset, or the values in the
laching devices are being cleared. Please try again later.
16#740C
The backplane number in a
communication command is
incorrect.
Please check the version of the firmware installed on the
CPU module and the version of ISPSoft, and contact the
local authorized distributors.
16#740D
The slot number in a
communication command is
incorrect.
Please check the version of the firmware installed on the
CPU module and the version of ISPSoft, and contact the
local authorized distributors.
16#740E
An error occurs when the the data
in the memory in the PLC is
cleared.
Please try agin. If the problem persists, contact the local
authorized distributors.
16#740F Communication timeout
Please check whether the remote device operates
normally.
16#7410
The function code in a reply
command is incorrect.
Please check the contents of the packet sent by the
remote device.
16#7412
Owing to the fact that SW1 is ON,
data can not be downloaded to the
CPU module.
Please make sure that SW1 is OFF.