Diagnosis with LEDs
29/63
5.5
OpenModbusTCP
For the
protocol, the communication LEDs
RUN
and
ERR
as well as the Ethernet LEDs
LINK
and
ACT
can assume the states
described below. This description is valid from stack version V0.9.
Communication status OpenModbusTCP
LED
Color
State
Description
RUN
Position in the device
overview:
(10)
Duo LED red/green
(green)
On
Connected:
OMB task has communication. At least one TCP
connection is established.
(green)
Flashing
(1 Hz)
Ready, not configured yet:
OMB task is ready and not yet
configured.
(green)
Flashing
(5 Hz)
Waiting for Communication:
OMB task is configured.
(off)
Off
Not Ready:
OMB task is not ready.
ERR
Position in the device
overview:
(7)
Duo LED red/green
(off)
Off
No communication error
(red)
Flashing
(2 Hz, 25% on)
System error
(red)
On
Communication error active
Table 26: Communication status OpenModbusTCP
LED state
Definition
Flashing
(1 Hz)
The LED turns on and off with a frequency of
1 Hz: "On" for 500 ms, followed by "Off" for 500 ms.
Flashing
(5 Hz)
The LED turns on and off with a frequency of
5 Hz: “On” for 100 ms, followed by “Off” for 100 ms.
Flashing
(2 Hz,
25% on)
The LED turns on and off with a frequency of
2 Hz: “On” for 125 ms, followed by “Off” for 375 ms.
Table 27: Definition LED states communication status
Ethernet status OpenModbusTCP
LED
Color
State
Description
LINK
Ch0:
(11)
, Ch1:
(8)
LED green
(green)
On
The device is linked to the Ethernet.
(off)
Off
The device has no link to the Ethernet.
ACT
Ch0:
(9)
, Ch1:
(6)
LED yellow
(yellow)
Flickering (load
dependent)
The device sends/receives Ethernet frames.
(off)
Off
The device does not send/receive Ethernet frames.
Table 28: Ethernet status OpenModbusTCP
LED state
Definition
Flickering
(load
dependent)
The LED turns on and off with a frequency of approximately 10 Hz to
indicate high Ethernet activity: "On" for approximately 50 ms, followed by
"Off" for 50 ms. The LED turns on and off in irregular intervals to indicate low
Ethernet activity.
Table 29: Definition LED states Ethernet status
CIFX M223090AE-RE\F | Hardware description and installation
DOC190704UM06EN | Revision 6 | English | 2022-02 | Released | Public
© Hilscher 2019 - 2022
