203
Troubleshooting
Section 7-2
The NS indicator continues to flash green.
• Make sure that the Master is operating properly.
When using an OMRON Master, refer to the DeviceNet Operation
Manual (W267).
When using another company’s Master Unit, refer to that Master’s
user’s 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 perform the clear scan list operation, check that the
Slave has joined the network, and then perform the create scan list
operation.
If another company’s Master Unit is being used, refer to that Master’s
user’s 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 per-
form 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 doesn’t overlap with
that of another Slave. If there is an overlap, change the Slave’s
node number to eliminate it.
→
Make sure that the allocated I/O area doesn’t 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 num-
ber to correct the problem.
• When using another company’s Master Unit, check that the I/O size
registered 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 C Multi-vendor Usage for details and record the correct
value in the Master’s scan list. Refer to the Master’s manual for details
on registering the values.
Error
Probable cause
Summary of Contents for DRT1-COM
Page 1: ...OPERATION MANUAL Cat No W348 E1 05 DRT1 COM GT1 Series DeviceNet MULTIPLE I O TERMINAL ...
Page 2: ...DRT1 COM GT1 Series DeviceNet MULTIPLE I O TERMINAL Operation Manual Revised May 2003 ...
Page 3: ...iv ...
Page 5: ...vi ...
Page 233: ...DRT1 COM GT1 Series DeviceNet MULTIPLE I O TERMINAL Cat No W348 E1 05 OPERATION MANUAL ...