4. Troubleshooting (DeviceNet)
4.1.2.5 Absent Slave
Master Unit LED
MS NS
Error Description
Light
OFF
Green
Light
Blinking
Absent slave
- No slave (Error detection before
communication establishment)
- Communications power supply OFF
♦
Process Flowchart
8
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.
94
Fieldbus I/O Rev.6
Summary of Contents for EM07ZS1647F
Page 1: ...Rev 6 EM07ZS1647F EPSON RC Option Fieldbus I O ...
Page 2: ...E PSON RC Option Fieldbus I O Rev 6 ...
Page 8: ...vi Fieldbus I O Rev 6 ...
Page 12: ...Table of Contents x Fieldbus I O Rev 6 ...
Page 80: ...2 Installation 68 Fieldbus I O Rev 6 ...
Page 88: ...3 Operation 76 Fieldbus I O Rev 6 ...
Page 164: ...5 Maintenance Parts List 152 Fieldbus I O Rev 6 ...
Page 168: ...Appendix A applicomIO Upgrade 156 Fieldbus I O Rev 6 ...