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4. Troubleshooting (DeviceNet)
276
RC700 / RC90 Option Fieldbus I/O Rev.14
4.1.2.6 Uninitialized Network
Master Unit LED
Error
Description
MS
NS
Light OFF Light OFF Uninitialized network
Absent slave
- Master unit start-up error
- No slave (Error detection before
communication establishment)
- Communications power supply OFF
♦
Process Flowchart
9
No Problem
Check
Check the following:
- Unconnected terminating resistor
- Unconnected or loose connector/signal wire
- Cable disconnection
Finish
No Problem
No Problem
No Problem
Problem exists. (Fix it.)
Problem exists. (Fix it.)
Problem exists. (Fix it.)
Problem exists. (Fix it.)
No problem
No problem
No problem
No problem
Measure voltage of
communications power supply
at the master unit.
Check that power is supplied to all slaves.
Check for master unit configuration.
Replace the master unit.
See 4.1.3.1 and 4.1.3.2.
Содержание RC700
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Страница 183: ...2 Installation RC700 RC90 Option Fieldbus I O Rev 14 171 17 EtherNet IP Slave is connected and the icon appears ...
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