Epson RC700 Manual page 247

♦ Process Flowchart
Check
 No Problem
 No Problem
- Unconnected or loose connector/signal wire
 No Change
 No
RC700 / RC90 Option Fieldbus I/O Rev.12
Slave: Uninitialized Network
Master LED Condition
Absent Slave LED Condition
(Uninitialized Network)
4
Measure voltage of all
slave power supplies.
No problem
Check the following:
- Unconnected terminating resistor
- Cable disconnection
No problem
Replace moving cable.
(Replace deteriorated cable).
No change
Replace the unit.
Normal Communication?
No
Consult the PROFIBUS manufacturer.
4. Troubleshooting (PROFIBUS DP)
BF
Light OFF
Light OFF
Problem exists. (Fix it.)
Problem exists. (Fix it.)
See 4.2.3.1 and 4.2.3.2.
The problem is fixed.
Yes
ST
Red Light Blinking
Light OFF
Finish
237