Diagnostics processing
Technical manual LioN-P EtherCAT® Digital-I/O
Release 1.0 11/2016
7.2 Voltage error at the M12 slots
(sensor short- circuit)
49
The filter is used to avoid premature error messages when a capacitive load
is activated or an inductive load is deactivated, and during other voltage
peaks when a status changes.
When a channel is in the static state (permanently activated or deactivated)
the controller uses a fixed specified duration of 100 ms for filtering the error
message.
7.2
Voltage error at the M12 slots
(sensor short- circuit)
At every M12 input socket of the modules, pin 1 supplies a monitored sensor
voltage U
S
.
In case of a sensor short-circuit, a voltage error is reported. Both channel
indicators of the M12 input socket light up red, and the relevant error bit for
the sensor short-circuit is set in the diagnosis bytes.
7.3
Overload of output drivers
The output drivers of the modules with output functions (variants 16DO and
8DI/8DO) report an error when they detect an overload. This error is reported
by setting the relevant channel error bits in the diagnosis bytes.
If there is an overload, the status indicator of the active output channel lights
up red. If both output channels of an M12 slot are active during an overload,
both status indicators light up red.
The error message is filtered by the "Surveillance-Timeout" parameter.
NOTE
If both output channels of an M12 slot are activated when a channel error
occurs, the controller locks both channels, even if only one channel is
affected by the error. If only one channel is activated, the controller only
locks this one. Locked channels are deactivated and remain in the Off state
if you do not reset them using the controller.
