12 diagnostics, 1 led status displays, Diagnostics – Lenze E94AYCPM User Manual
Page 82: Led status displays ( 82)
12
Diagnostics
12.1
LED status displays
82
Lenze · E94AYCPM communication module (PROFIBUS®) · Communication Manual · DMS 12.0 EN · 11/2012 · TD17
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
12
Diagnostics
For diagnosing faults of the PROFIBUS module, the LEDs on the front panel are available.
Furthermore, you can query the current bus status via codes
/
.
12.1
LED status displays
Note!
During normal operation, the LED BS blinks and the LED MS is permanently lit.
LED status display
Pos.
Colour
State
Description
MS
Green
On
The communication module is supplied with voltage
and has established a connection to the standard
device.
Blinking
The communication module is supplied with voltage,
but has not yet established a connection to the
standard device. (Standard device is switched off,
initialising or not present.)
ME
Red
On
An error concerning the communication module has
occurred.
BS
Green
Blinking
The communication module is in the DATA_EXCH
state ("Data_Exchange"). Data are exchanged via the
PROFIBUS.
Off
The communication module is not active on the
fieldbus or is being initialised.
BE
Red
On
Bus error/fault is active (e.g. bus cable unplugged).
DE
Red
On
The communication module is not accepted by the
standard device or the standard device is not active.
(See notes in the documentation for the standard
device.)