Delta AH500 series, Hardware Operation Manual, Page: 560 / 681

C h a p t e r 1 2 Tr o u b l e s h o o t i n g
1 2 - 11
Error
code
Description Remedy
16#2021
The checksum of the command
received is incorrect.
(SM102/SM103) 1. Check whether there is noise, and retry the sending of
the command.
2. Check whether the slave operates normally.
16#2022
The format of the command used
in MODRW does not conform to
the ASCII format.
(SM102/SM103)
Make sure that the format of the command conforms to
the ASCII format.
16#2023
There is a communication
timeout when MODRW is
executed. (SM120/SM103)
Check whether the slave operates normally, and whether
the connection is normal.
16#2024
The setting value of the
communication timeout is invalid.
(SM120/SM103)
1. Check the program and the related special data
registers.
2. Set the communication port parameter for the CPU
module in HWCONFIG again.
16#2025
There is a communication
timeout when RS is executed.
(SM120/SM103)
Check whether the slave operates normally, and whether
the connection is normal.
16#2026
The RS communication interrupt
is abnormal. (SM102/104) Check whether the interrupt service routine used with RS
is downloaded.
16#2027
The execution of FWD is
abnormal. (SM102/103) Refer to AH500 Programming Manual, and check the
instruction FWD.
16#2028
The execution of REV is
abnormal. (SM102/103) Refer to AH500 Programming Manual, and check the
instruction REV.
16#2029
The execution of STOP is
abnormal. (SM102/103) Refer to AH500 Programming Manual, and check the
instruction STOP.
16#202A
The execution of RSDT is
abnormal. (SM102/103) Refer to AH500 Programming Manual, and check the
instruction RSDT.
16#202B
The execution of RSTEF is
abnormal. (SM102/103) Refer to AH500 Programming Manual, and check the
instruction RSTEF.
16#202C
|
16#204B
I/O interrupt service routine
0-31 does not exist. Download I/O interrupt service routine 0-31
(I/O interrupt 0-31).
16#2054
|
16#2127
I/O interrupt service routine
40-251 does not exist. Download I/O interrupt service routine 40-251
(I/O interrupt 40-251).
16#2128
An action in a sequential function
chart is incorrectly assigned
qualifiers related to time.
(SM0/SM1)
Check whether the action in the sequential function chart
is assigned qualifiers related to time.
16#2129
The modifier R is assigned to an
action in a sequential function
chart incorrectly. (SM0/SM1)
Check whether the reset modifier assigned to the action
in the sequential function chart conflicts with another
modifier assigned to the action in the sequential function
chart.
16#212A
MC/MCR instruction cannot be
used in interrupt or subroutine.
(SM5)
Check the program, compile the program again, and
download the program again.
16#6000
Ethernet speed cannot be
detected (SM1106) Check the Ethernet cable securely connected and is
functioning normally.
16#6001 Illegal IP address (SM1107)
1. Check the program and the related special data
registers.
2. Set the Ethernet parameter for the CPU module in
HWCONFIG again.