Epson EM07ZS1647F User Manual page 125

4.2.1.2 Check Network Status
First of all, you should check the current condition of the network. There are different
specifications of status display LED on a device in the PROFIBUS DP standard. This section
explains how to check the network status assuming that EPSON RC+ is configured as a
master or slave.
(1) Master Status: BF/ST LEDs
BF (Physical error)
ST (Communication Status)
(2) Station Number of Absent Slaves
Absent slaves are disconnected from or not added to the network.
1. See the status flag regarding to the removal and addition if the master has status
2. See the BF/ST LEDs of all slaves if the master has no status information.
(3) Absent Slave Status: BF/ST LEDs
BF (Physical error)
ST (Communication Status)
(4) Physical Node Location of Absent Slave
Master
Start the examination from this block
when an error occurred here.
(5) Error Occurrence Condition
Immediate occurrence (high reproducibility)
Rare occurrence (low reproducibility)
Fieldbus I/O Rev.6
LED
information.
LED
PLC
Terminating Resistor ON
Slave Slave
Terminating
Resistor ON
Slave
4. Troubleshooting (PROFIBUS DP)
Color
Green Red
Green Red
Color
Green Red
Green Red
Slave
Terminating Resistor ON
Slave Slave
Light Condition
ON Blinking
ON Blinking
Light Condition
ON Blinking
ON Blinking
OFF
OFF
OFF
OFF
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