Omron CPM1 - PROGRAMING MANUAL 02-2001 Programming Manual page 262

CPM2A/CPM2C Communications Functions
Response Codes
End Contents
code
00 Normal completion
01 Not executable in RUN mode
02 Not executable in MONITOR mode
04 Address over
0B Not executable in PROGRAM
mode
13 FCS error
14 Format error
15 Entry number data error
16 Command not supported
18 Frame length error
19 Not executable
23 User memory write-protected
A3 Aborted due to FCS error in trans-
mit data
A4 Aborted due to format error in
transmit data
A5 Aborted due to entry number data
error in transmit data
A8 Aborted due to frame length error
in transmit data
Other ---
Application Procedure
Setting the CPU Unit's
communications switch
Connecting the cables
Commands issued from the host
computer.
242
Probable cause
---
The command that was sent can-
not be executed when the PC is in
RUN mode.
The command that was sent can-
not be executed when the PC is in
MONITOR mode.
The user program area's highest
address was exceeded.
The command that was sent can-
not be executed when the PC is in
PROGRAM mode.
The FCS is wrong. Either the FCS
calculation is mistaken or there is
adverse influence from noise.
The command format is wrong.
The read/write area specification is
wrong.
The specified command does not
exist in the specified address.
(Reading the SV, etc.)
The maximum frame length was
exceeded.
Items to read not registered for
composite command (QQ).
The memory is write-protected in
the PC Setup.
The error was generated while a
command extending over more
co a d e e d g o e
than one frame was being f
executed.
Note: The data up to that point has
already been written to the ap- y
propriate area of the CPU Unit. propriate area of the CPU Unit
Influence from noise was received.
Set the CPM2A CPU Unit's communications switch
or the CPM2C CPU Unit's DIP switch.
Make the 1:1 or 1:N connection.
Ladder program
(Communications initiated by
CPM2A/CPM2C)
Corrective measures
---
Check the relation between the
command and the PC mode.
Check the program.
This code is not presently being
used.
Check the FCS calculation method.
If there was influence from noise,
transfer the command again.
Check the format and transfer the
command again.
Correct the areas and transfer the
command again.
Check the address and instruction.
Divide the command into multiple
frames.
Execute QQ to register items to
read before attempting batch read.
Change the setting in the PC Setup
(DM 6602).
Check for corrupted frames, correct
if necessary, and try the transfer
o e ecessa y, a d y
again.
Transfer the command again.
Section 4-3
e a s e