Error Indication Directly On The Device; Leds; Lc-Display; As-I Monitor - Pepperl+Fuchs AS-i Compact Manual

EtherNet/IP + Modbus TCP-Gateways
Diagnostics
7.3

Error indication directly on the device

Note!
Available only with gateways.
7.3.1

LEDs

The LEDs located on the device allow you to quickly see the status of the main
function parameters, such as power, communication with the host controller, com-
munication on the AS-i circuit and state of the safety in- and outputs.
7.3.2

LC-Display

In the display of the gateways plain text messages are shown spontaneously for
any detected errors (e.g. missing slaves, earth fault, duplicate address...).
7.3.3

AS-i Monitor

Comprehensive, standard measuring technology built into the AS-i Masters make
it possible to simply localize even sporadically occurring configuration errors and
interference sources affecting AS-i communication.
7.3.3.1

Duplicate address detection

The Master detects when two slaves having the same address are present in the
AS-i circuit.
7.3.3.2

Earth fault monitor

The earth fault monitor checks the symmetry of the AS-i voltage. If the voltage is
no longer sufficiently symmetrical, the noise immunity of data transmission is
compromised.
7.3.3.3

Noise voltage detection

Noise voltages on the AS-i cable can cause telegram errors. The noise voltage
detector monitors the AS-i circuit for AC voltages which have been generated by
neither the AS-i Master nor the slaves.
7.3.3.4

Overvoltage detection

Normally UASi+ and UASi- are in symmetry with system ground. If this potential
rises significantly, the overvoltage detector reports this anomaly.
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