LEDs
54/75
LED
Color
State
Meaning
APL
RTE devices:
position
(5)
Fieldbus devices:
position
(6)
(red)
Blinking with
2 s off,
0.5 s on,
0.5 s off,
0.5 s on
netHOST is initialized, but the configuration of the secondary network
protocol (Fieldbus or Real-Time Ethernet) does not allow
communication. Use the SYCON.net configuration software to
download the configuration again.
·
A watchdog timeout error has occurred while the watchdog for host
application was active. The Fieldbus or RTE network has been set to
operating mode “stop”. Check the LAN connection to the host
application. The connection to the host application has to be re-
established.
·
The configuration of the Fieldbus/RTE network has an error.
·
The configuration of the Fieldbus/RTE network is not complete.
·
The configuration of the Fieldbus/RTE network is missing.
(red)
On
netHOST has detected one of the following errors during the
initialization:
·
Missing configuration
·
Error in configuration
·
Internal sequence error
Table 35: APL LED
10.3 LEDs of the Fieldbus and Real-Time Ethernet systems
10.3.1
LED PROFIBUS DP Master (NHST-T100-DP/DPM)
The subsequent table describes the meaning of the COM LED of the
NHST-T100-DP/DPM netHOST device.
LED
Color
State
Meaning
COM
Position in the
device drawing:
(14)
Duo LED red/green
(green)
On
Communication to all Slaves is established.
(green)
Blinking (5 Hz)
PROFIBUS is configured, but the bus communication is not yet
released from the application.
(green)
Flashing,
acyclic
No configuration or faulty configuration
(red)
Blinking (5 Hz)
Communication to at least one Slave is disconnected.
(red)
On
Communication to all Slaves is disconnected or another serious error
has occurred.
Redundant Mode: The active Master was not found.
(off)
Off
Device is not switched on or supply voltage is missing.
Table 36: LED states for the PROFIBUS DP Master protocol
LEDs states
Definition
Blinking (5 Hz)
The indicator turns on and off with a frequency of 5 Hz: “on” for 100 ms,
followed by “off” for 100 ms.
Flashing,
acyclic
The indicator turns on and off in irregular intervals.
Table 37: LED state definitions for the PROFIBUS DP Master protocol
netHOST NHST-T100 | LAN controlled master devices
DOC130401UM05EN | Revision 5 | English | 2018-05 | Released | Public
© Hilscher 2013 – 2018
