Filter
Top Products
4-4SectionConnections
52
4-4-4 End Codes
The response (end) codes listed in the following table are returned in the re-
sponse frame for Host Link commands. When two or more errors occur, the end
code for the first error will be returned.
End
code
Contents Probable cause Corrective measures
00 Normal completion No problem exists. ---
01 Not executable in RUN
mode
The command that was sent cannot be
executed when the PC is in RUN mode.
Check the relation between the
command and the PC mode.
02 Not executable in MON-
ITOR mode
The command that was sent cannot be
executed when the PC is in MONITOR
mode.
03 UM write-protected The PC’s UM is write-protected. Turn OFF pin 1 of the CPU Unit’s
DIP switch (SW1).
04 Address over The program address setting in an read or
write command is above the highest program
address.
Check the program.
13 FCS error The FCS is wrong. Check the FCS calculation meth-
od. If there was influence from
noise, transfer the command
again.
14 Format error The command format is wrong, or a com-
mand that cannot be divided has been di-
vided, or the frame length is smaller than the
minimum length for the applicable command.
Check the format and transfer the
command again.
15 Entry number data error The data is outside of the specified range or
too long.
Hexadecimal data has not been specified.
Correct the data and transfer the
command again.
16 Command not supported The operand specified in an SV Read or SV
Change command does not exist in the pro-
gram.
Check search data or the search
starting point.
18 Frame length error The maximum frame length of 132 bytes was
exceeded.
If the frame exceeds 280 bytes, the Recep-
tion Overflow Flag will be turned ON and
there will not be a response.
Check the command and divide it
into multiple frames if necessary.
19 Not executable The read SV exceeded 9,999, or an I/O
memory batch read was executed when
items to read were not registered for com-
pound command.
Register items to read before at-
tempting batch read.
23 User memory protected The UM is write-protected. Turn OFF the write-protection
A3 Aborted due to FCS error in
transmission data
An FCS error occurred in the second or later
frame, or there were two bytes or less of
data in an intermediate or final frame for mul-
tiple writing.
Correct the command data and
transfer the command again.
A4 Aborted due to format error
in transmission data
The command format did not match the
number of bytes in the second or later frame.
A5 Aborted due to entry num-
ber data error in transmis-
sion data
There was an entry number data error in the
second or later frame, a data length error, or
data was not set in hexadecimal.
A8 Aborted due to frame length
error in transmission data
The length of the second and later frames
exceeded the maximum of 128 bytes.