4. Troubleshooting (PROFIBUS DP)
RC700 / RC90 Option Fieldbus I/O Rev.14 305
4.2.2.3 Master: Uninitialized Network
Error Description
- Master unit power error
- Master unit configuration error
♦ Process Flowchart
7
No Problem
Check
Measure voltage of all
slave power supplies.
Problem exists. (Fix it.)
No problem
Finish
No
Replace the master unit.
Yes
No
Check for master device configuration.
Problem exists. (Fix it.)
No problem
No Problem
Consult the PROFIBUS manufacturer.
Normal Communication?
♦ Causes of Error
of master device
power supply
Measure voltage of the device
power supply at the master unit.
→It should be within the range of
sufficient voltage for device
device power supply.
configuration error
Check that the master device was
configured properly.
→After changing the
configuration, verify whether
configuration.
unit
Replace the broken master unit
with a new one.
→Verify whether the problem is
with a new one.