13. Troubleshooting
13-21
(2) Troubleshooting from sent and received data
If errors occur in data sent and received, such as the inability to send or receive data to and from other
OD.RING modules or the corruption of data, follow the instructions in Table 13-12 to troubleshoot
the problem.
Table 13-12 Troubleshooting from sent and received data (1/2)
Sent and received
data
Check
Corrective action
Data is not transferred
from the module at the
other end.
Is the power of the module at the
other end turned on?
If the power has not been turned on, turn it on.
Is the module at the other end
transmitting data?
If the transmission LED (TX) is off and the reception
LED (RX) is on, the module might have failed. See
Table 13-2.
Is the switch on the module at the
other end set to "RUN"?
When the LADDER RUN/STOP switch on a CPU
module is set to STOP, memory transfer is disabled.
Are the transmission area settings
of the module at the other end
correct?
If the transmission area settings are not correct, specify
the correct settings. If the transmission word count is set
to 0, transmission is disabled.
Are the Module No. and CPL No.
settings correct?
Verify that the set values are correct. The Module No.
setting switch and the CPL No. setting switch are
related based on the number of connected devices. (See
4.2 Setting switches
in the
S10VE User's Manual Option
OD.RING (LQE510-E)
(manual number SEE-1-101). If
duplicate settings are used, data is not transferred
properly.
Data is not transferred
to the module at the
other end.
Is the LADDER RUN/STOP switch
on the CPU module set to "RUN"?
When the LADDER RUN/STOP switch on a CPU
module is set to STOP, memory transfer is disabled.
Are the transmission area settings
of the module at this end correct?
If the transmission area settings are not correct, specify
the correct settings. If the transmission word count is set
to 0, transmission is disabled.
Are the Module No. and CPL No.
settings correct?
Verify that the set values are correct. The Module No.
setting switch and the CPL No. setting switch are
related based on the number of connected devices. (See
4.2 Setting switches
in the
S10VE User's Manual Option
OD.RING (LQE510-E) (manual number SEE-1-101)
. If
duplicate settings are used, data is not transferred
properly.
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