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CHAPTER 16 TROUBLESHOOTING
16
16.7 Error Code List
16.7.1 End codes returned to a connected device during data communications
54
H
• When "ASCII Code" has been
selected in the communication data
code setting in the Ethernet operation
setting, ASCII code data which cannot
be converted into binary code data has
been sent from the connected device.
• Check and correct the
data sent from the
connected device.
55
H
• When "Enable Online Change" was
disabled (or not selected) in the
Ethernet operation setting, the
connected device requested a data
write while the CPU module was
running.
• While the CPU module was running,
the connected device requested for
writing a parameter, program, or
microcomputer program.
• Enable (select)
"Enable Online
Change" in the
Ethernet operation
setting and write data.
(However, a
parameter, program,
or microcomputer
program cannot be
written while the CPU
module is running.)
• Set the switch on the
CPU module to STOP
and write the data.
56
H
• The connected device specified a
wrong device.
• Correct the device
specification.
Error
code
Error description Action
Data communication type
MC protocol
communications
Communications
using a fixed
buffer
Communications
using a random
access buffer
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