Omron CS1W-DRM21, Руководство по эксплуатации

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Troubleshooting Section 8-2
8-2-2 Analog Input Unit Troubleshooting
DRT1-AD04
The NS indicator continues to flash green. • Make sure that the Master is operating properly.
When using an OMRON Master, refer to the Master Unit’s Operation
Manual. When using another company’s Master Unit, refer to that Mas-
ter’s operation manual.
• Check whether the Slave is registered in the Master’s scan list.
If an OMRON Master Unit is being used, a new Slave cannot be added to
the network if the Master is operating with the scan list enabled. First per-
form the clear scan list operation, check that the Slave has joined the net-
work, and then perform the create scan list operation.
If another company’s Master Unit is being used, refer to that Master’s
operation manual for details on adding a new Slave to its scan list.
The NS indicator alternates between being
green and flashing green, or alternates
between flashing red and flashing green. • When using an OMRON Master, check the following items and perform
the necessary error processing steps.
→
Register the scan list again.
(After performing the clear scan list operation, check that the Slave
has joined the network and perform the create scan list operation.)
→
Make sure that the Slave’s allocated I/O area does not overlap with
that of another Slave. If there is an overlap, change the Slave’s node
address to eliminate it.
→
Make sure that the allocated I/O area does not exceed the allowed
range shown below:
C200HW-DRM21-V1
Output: IR 050 to IR 099
Input:
IR 350 to IR 399
If the I/O area exceeds this range, change the Slave’s node address
to correct the problem.
• When using another company’s Master Unit, check that the I/O size reg-
istered in the Master’s scan list matches the actual I/O size of the Slave.
The I/O size is recorded in the following attributes of the connection
object:
Interface 2 (Polled I/O Connection)
Produced Connection size (Input size)
Consumed Connection size (Output size)
and:
Interface 3 (Bit strobed I/O Connection)
Produced Connection size (Input size)
See Appendix B Slave Device Protocol for details and register the correct
value in the Master’s scan list. Refer to the Master’s manual for details on
registering the values.
Error Probable cause
The AD converted data is FFFF. The Analog Input Terminal’s open-circuit detection function is activated
when the input range is set to 1 to 5 V and the voltage drops below 0.8 V or
the input range is set to 4 to 20 mA and the current drops below 3.2 mA.
The converted data is set to FFFF when the open-circuit detection function
is activated.
Check the Analog input’s cables for broken wires or incorrect wiring.
When the input signal rises above 0.8 V or 3.2 mA, the converted data will
automatically return to its normal range.
Error Probable cause
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