Other Errors; Troubleshooting Smartslice I/O Communication - Omron GRT1 - 27-11-2006 Operation Manual

Other Errors

BF
Lit The PROFIBUS wiring is not correct.
The PROFIBUS network has not been terminated cor-
rectly.
Note
4-3

Other Errors

4-3-1

Troubleshooting SmartSlice I/O Communication

Problem
The Communication Unit's
Unit Power LED is flashing.
The I/O Unit repeatedly
checks LEDs (TS LED
flashing green and red).
The Communication Unit's
TS LED intermittently
flashes green. The TS LED
of the I/O Units in front of
the bad connection light
green, while the TS LED of
the I/O Units behind the
bad connection are OFF.
The Communication Unit's
TS LED flashes green and
the I/O Unit's TS LED is
ON.
64
Probable cause
1. If two or more SmartSlice I/O Units do not match with the PROFIBUS I/O
configuration, the diagnostics message will only contain the error flags of
the first mismatching SmartSlice I/O Unit.
2. Selecting the COM Status module applies to the use of the GSD file in
third-party Configuration software. When using the GRT1-PRT DTM within
an FDT container, the COM Status module is selected automatically, and
remains hidden to the user.
This section deals with troubleshooting the SmartSlice I/O communication on
the network from a behaviour point of view. The column on the left describes
the general perceived problem to the user. The columns on the right list the
possible causes and their remedies.
Probable cause
The Unit power supply capacity is insuffi-
cient.
The slide connector on the left side of the
affected Unit is not connected properly.
Communications
Unit Indicator
LED Indicator
The End Unit is not connected properly.
Communications
Unit Indicator
LED Indicators
Correction
• Verify that the correct pins of the BUS connector
are connected.
• Verify that there are no short circuits or line inter-
ruptions,
• Verify that the correct cable type is used,
• Verify that the stub lines are not too long. See 2-4-1
Network Structure).
Terminate the network at the appropriate places. See
2-4-2 Bus Termination).
Correction
Check the entire SmartSlice I/O System's
power supply requirement and replace the
power supply with one that has sufficient
capacity.
Connect this slide connector properly and
turn the power ON again.
I/O Unit Indicator
Connect the End Unit properly and turn the
power ON again.
I/O Unit Indicator
Section 4-3
Not lit (OFF)
Bad connection
Bad connection