LED Descriptions
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PC Cards cifX Compact PCI, Mini PCI, Mini PCIe, PCI-104 | Installation, Operation and Hardware Description
DOC120205UM53EN | Revision 53 | English | 2019-03 | Released | Public
© Hilscher, 2008-2019
8.20.2 2 Communication Status LEDs
For the PROFIBUS DP Slave protocol, the communication status LEDs
STA
and
ERR
can assume the states described below. This description is
valid from stack version V2.7.
LED
Color
State
Meaning
cifX with 2 Communication Status LEDs
(AIFX-DP is connected or for prior Hardware Revisions)
LED green
(green)
On
RUN, cyclic communication
(green)
Flashing,
cyclic (2 Hz)
Master is in CLEAR state.
STA
(off)
Off
LED red is off:
Device is not switched on or network power is missing.
LED red is flashing or on:
Refer to description LED red.
LED red
(off)
Off
Refer to description for LED green.
(red)
Flashing,
acyclic (1 Hz)
Device is not configured.
(red)
Flashing,
cyclic (2 Hz)
STOP, no communication, connection error
ERR
(red)
On
Wrong configuration at PROFIBUS DP Slave.
Table 87: LED states for the PROFIBUS DP Slave protocol – 2 Communication Status LEDs
(AIFX-DP connected or prior Hardware Revision)
LED State
Definition
Flashing,
acyclic (1 Hz)
The indicator turns on and off in irregular intervals, with a frequency
of 1 Hz:
“on” for 750 ms, followed by “off” for 250 ms.
Flashing,
cyclic (2 Hz)
The indicator turns on and off with a frequency of 2 Hz:
“on” for 250 ms, followed by “off” for 250 ms.
Table 88: LED state definitions for the PROFIBUS DP Slave protocol
