Omron SYSMAC CS1W-SCB41-V1 Operation Manual page 372

Troubleshooting
Error
code
0 Hex
1 Hex
2 Hex
3 Hex
4 Hex
Note The following table shows the measures to correct the errors indicated in bits
00 to 03 (Error Code) of words allocated in the CIO Area words n+9/n+19.
Indicator Error details
No display Normal
No display Reserved
No display Sequence num-
ber error
ERC: Data read/write
Flashing range error
ERR/ALM:
Flashing
ERC: Protocol data
Flashing syntax error
ERR/
ALM:
Flashing
Cause
--- ---
--- ---
The communica- Correct the communications sequence
tions sequence number.
number specified in
Use CX-Protocol to register the specified
the PMCR(260)
communications sequence number.
instruction's C2
operand is not reg-
istered.
The data range of For operand specification:
the specified area is Check the PMCR(260) instruction S and
exceeded when D operand specifications.
data is being written
For direct specification of link words:
to or read from the
Use CX-Protocol to check the specified
I/O memory of the
range.
CPU Unit.
There is a code that Check the following items and correct the
cannot be executed problem.
during protocol exe-
• Check whether the total specified num-
cution.
ber of link words in the area (O1, O2,
I1, I2) exceeds 500.
• The same area with link word specifi-
cation is used by both ports 1 and 2.
• A write instruction with constant speci-
fication is specified.
• An EM Area read/write instruction is
specified as an interrupt notification
(for Boards only).
• An interrupt notification is specified at
the Unit (for Units only).
• There are more than 30 write
attributes set for one message.
• The length of a send/receive message
is set to 0 bytes.
• The length of a send/receive message
is longer than the maximum send/
receive message bytes setting.
• No messages are registered for matrix
reception.
• Both RTS/CTS flow control and Xon/
Xoff flow control are set for the same
transmission line.
Section 11-3
Remedy
343