Epson EM07ZS1647F - Manual (Page 128)

4. Troubleshooting (PROFIBUS DP)
4.2.2.1 Master: Communication Error
Master Unit LED
BF ST
Error Description
Light
OFF Red
Light
Blinking Communication
error - Slave disconnected from the network
(Remote I/O communication error)
- Slave not added to the network (Scan list
collation error)
- Nonstandard wiring
- No or too many terminating resistors
- Noise intrusion
4.2.2.1.1 Master/Slave: Communication Error
BF ST
Master LED Condition Light OFF Red Light Blinking
Light OFF Green Light Blinking Absent Slave LED Condition
(Communication error)
Light OFF Red Light Blinking
116 Fieldbus I/O Rev.6