LEDs
53/75
10.2 APL LED
This LED indicates the communication state of the primary network
(Ethernet LAN) and the secondary network (Fieldbus or Real-Time
Ethernet), as well as the state of the configuration of the netHOST device.
LED
Color
State
Meaning
APL
RTE devices:
position
(5)
Fieldbus devices:
position
(6)
Duo LED red/green
(green)
On
The Ethernet cable of the primary network is plugged in at the LAN
interface. The netHOST device communicates via secondary network
(Fieldbus or Real-Time Ethernet) and exchanges payload data. The
netHOST function is executed without error.
Note
: This does not indicate a connection to a host application.
(green)
Blinking with
2 s off,
0.5 s on
netHOST is initialized, a valid configuration is present in the device.
The netHOST communicates via secondary network, but the LAN
interface at the primary network shows no activity.
The Ethernet cable has been removed from the LAN interface.
Reconnect the cable.
(green)
Blinking with
2 s off,
0.5 s on,
0.5 s off,
0.5 s on
netHOST is initialized, a valid configuration is present in the device.
Communication at the secondary network (Fieldbus or Real-Time
Ethernet) is not in payload data exchange.
·
In the netHOST configuration, the starting mode for communication
at the interface of the secondary network is set to “controlled by the
host application”, which is the default setting. Please check this
setting in the configuration software. Check also, whether or not the
start command from the host application has already been issued.
·
netHOST as Fieldbus or Real-Time Ethernet master after start
command: The netHOST has no payload data connection to any of
the configured slaves.
The configuration of the netHOST might not match the configuration
of the slaves or the fieldbus or RTE cable is not connected. Use the
SYCON.net configuration software for diagnosis.
(red)
Blinking with
2 s off,
0.5 s on
netHOST is initialized, but the configuration of the primary network
(LAN) does not allow communication.
·
DHCP mode was configured for the LAN network, but the device has
not yet received an IP address from the DHCP server.
Check the DHCP server and your configuration.
·
An IP address has been configured, but it conflicts with another IP
address already used in the LAN network.
·
Configuration is missing in the netHOST device.
Use the SYCON.net configuration software to download the
configuration.
·
LAN configuration has an error.
netHOST NHST-T100 | LAN controlled master devices
DOC130401UM05EN | Revision 5 | English | 2018-05 | Released | Public
© Hilscher 2013 – 2018
