Troubleshooting The Network Using Cx-Profibus - Omron SYSMAC CS Series Operation Manual

Troubleshooting the Network
7-4-2

Troubleshooting the Network using CX-Profibus

CX-Profibus
Troubleshooting
Troubleshooting the
Master Unit
CX-Profibus provides several means to troubleshoot either the CS1/CJ1W-
PRM21 PROFIBUS Master Unit, the slave devices or the network. The means
all rely on features discussed in the previous section.
To troubleshoot the Master Unit or the network, the Master DTM Diagnosis
User Interface provides a help in determining problems. The figure below
shows the Monitor - Master Status tab of the Master DTM Diagnosis User
Interface.
The LED indicators shown in the (example) figure above are all related to bit
flags in the Unit Status Word, the Master Status Word 1, the Master Status
Word 2, and the Slave Status Word (see section 4-2 Allocated CIO Area
Words).
The table below lists combinations of LED indicators with information on pos-
sible problems.
Section 7-4
213