LEDs
Section 5-4
70
5-4
LEDs
The Unit has six LEDs to visualise its status. The layout of the LEDs is shown
below.
The two LEDs on the left side (RUN, ERR) show the status of the Unit in
general. The four LEDs on the right side indicate the status of the
PROFIBUS-DP network.
The different states of the LED are listed in the table below. The following
flowchart describes the sequence in which the LEDs are turned ON or OFF.
In some states additional information is indicated by the status word IR n+2
and IR n+3. The flowchart and the table refer to this status word where
applicable.
Unit status LEDs
LED
Colour
State
Description
RUN
Green
OFF
Fatal error detected
Flashing
Initialising the hardware / software
ON
The Unit is initialised and no fatal error is
detected
ERR
Red
OFF
No errors
Flashing
Non-fatal error due to incorrect Unit settings
Details in IR n+2.09, n+2.10
ON
Fatal error.
Details in IR n+2, bits 06 through 08
Summary of Contents for C200HW-PRM21
Page 1: ...C200HW PRM21 PROFIBUS DP Master Unit OPERATION MANUAL Cat No W349 E2 2...
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Page 5: ...C200HW PRM21 PROFIBUS DP Master Unit Operation Manual Produced May 2000...
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Page 66: ...Debug mode Section 4 4 50...
Page 98: ...Messages Section 6 4 82...
Page 108: ...Maintenance Section 7 3 92...
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