9. TROUBLESHOOTING
IMR01Y35-E3
115
115
Continued from the previous page.
Problem Possible
cause
Solution
Controller communication is
abnormal
Initializing information is not
received from controllers within
30 seconds after the power is
turned on
Sets communication speed for controller
communication and controller address
correctly.
Check to set controller communication
address from address number 1 in
succession.
RUN lamp: Flashes
The data of the COM-JG initial
setting items was not correctly
written to EEPROM.
Turn the power off and then on, and then
reset the COM-JG initial setting items.
Can not recognize the
controller
Incorrect sequence of power-on
COM-JG must be powered on last.
Communication
Problem Possible
cause
Solution
Part of the read data
specified in a static
data request cannot be
read, or part of the
specified write data
cannot be written.
The number of words set in the
configuration is less than the
number of data set in the data
parameters.
Make sure that the number of data set in the
data parameters is the same as the number of
words set in the configuration.
The number of data set in the data parameters
is determined by the combination of the
following items.
•
Number of channel
•
Number of setting Group
•
Continuous accesses enable selection
Refer to the equation for calculating the number
of read/write words on the previous page.
The data specified in a
static data request
cannot be read or
cannot be written.
The group setting and the group
read/write allocation setting in
the data parameter settings do
not match.
•
The order of the write items is
opposite the order of the read
items.
•
A group without a read/write
allocation is set.
Make sure the group setting matches the
group read/write allocation setting in the data
parameter settings.
[Example]
When the number of channels is “1” and
the group read/write allocation setting is
10 reads / 30 writes:
•
Groups 1 to 10 are read items and Groups 11
to 40 are write items.
•
When the number of read request words is
“5,” Groups 1 to 5 will be read-requested,
but Groups 6 to 10 will not be
read-requested.
•
When the number of write request words is
“5,” Groups 11 to 15 will be
write-requested, but Groups 16 to 40 will
not be write-requested.
