Omron NY532-5400 Troubleshooting Manual page 619

Operation
Master:
• The following applies if fail-soft operation is set to Fail-soft, the event was detected when the power sup-
ply was turned ON or the Controller was reset, and the error details in the attached information is 0000
hex: The maximum number of slaves from the beginning will enter the Operational state and continue to
operate. The slaves past the maximum number of slaves will remain in Init state and communications will
stop.
• The following applies if fail-soft operation is set to Stop, the event was detected when the power supply
was turned ON or the Controller was reset, and the error details in the attached information is 0000 hex:
The maximum number of slaves from the beginning will enter the Pre-operational state and only mes-
sage communications will continue. The slaves past the maximum number of slaves will remain in Init
state and communications will stop.
• The following applies if the event was detected when the power supply was turned ON or the Controller
was reset, and the error details in the attached information is 0001 hex: All slaves will remain in the Init
state and communications will stop.
• The following applies if fail-soft operation is set to Fail-soft, the event was detected during communica-
tions, and the error details in the attached information is 0000 hex: The maximum number of slaves
from the beginning will enter the Operational state and continue to operate. The slaves past the maxi-
mum number of slaves will remain in Init state and communications will stop.
• The following applies if fail-soft operation is set to Stop, the event was detected during communications,
and the error details in the attached information is 0000 hex: The maximum number of slaves from the
beginning will enter the Pre-operational state and communications will stop. The slaves past the maxi-
mum number of slaves will remain in Init state and communications will stop.
• The following applies if fail-soft operation is set to Fail-soft, the event was detected during communica-
tions, and the error details in the attached information is 0001 hex: The slaves that are normal continue
to operate. If you are using distributed clocks to synchronize the slaves, a Synchronization Error may
occur between the slaves.
Slave:
• No error occurred.
Precautions/
• The following applies if fail-soft operation is set to Fail-soft, the event was detected when the power
Remarks
supply was turned ON or the Controller was reset, and the error details in the attached information is
0000 hex: The maximum number of slaves from the beginning will enter the Operational state, it will be
possible to set parameters, and process data communications will continue. The slaves past the maxi-
mum number of slaves will remain in the Init state and it will not be possible to set parameters or per-
form process data communications for them.
• The following applies if fail-soft operation is set to Stop, the event was detected when the power supply
was turned ON or the Controller was reset, and the error details in the attached information is 0000 hex:
The maximum number of slaves from the beginning will enter the Pre-operational state, it will be possi-
ble to set parameters, but process data communications will not be possible. The slaves past the maxi-
mum number of slaves will remain in the Init state and it will not be possible to set parameters or
perform process data communications for them.
• The following applies if the event was detected when the power supply was turned ON or the Controller
was reset, and the error details in the attached information is 0001 hex: All slaves will remain in the Init
state and it will not be possible to set parameters or perform process data communications.
• The following applies if fail-soft operation is set to Fail-soft, the event was detected during communica-
tions, and the error details in the attached information is 0000 hex: The slaves before the node where
the error occurred will enter the Operational state, it will be possible to set parameters, and process
data communications will continue. For the slave where the error occurred and all slaves after it, it will
not be possible to set parameters or perform process data communications.
• The following applies if fail-soft operation is set to Stop, the event was detected during communications,
and the error details in the attached information is 0000 hex: It will be possible to set parameters but it will
not be possible to perform process data communications for all slaves in the Pre-operational state. It will
not be possible to set parameters or perform process data communications for all slaves in the Init state.
• The following applies if fail-soft operation is set to Fail-soft, the event was detected during communications,
and the error details in the attached information is 0001 hex: Process data communications will be possible
for all slaves that are operating normally. If you are using distributed clocks to synchronize the slaves and a
Synchronization Error is detected, only input refreshing is enabled. It will be possible to set parameters.
There are restrictions on the number of slave node addresses, and not on the number of slaves per se.
This is because there are slaves, such as Junction Slaves, that use more than one node. Also, if the max-
imum number of slaves are connected and an attempt is made to make a ring connection, a Too Many
Slaves error (0000 hex) occurs.
NY-series Troubleshooting Manual (W564)
3 Error Descriptions and Corrections
3
3-543