
Diagnostics
Behavior in the Event of
Power Supply for Splitter Boxes and Sensors
Actuators
Short-circuit / overload
The following consequences on the FTB splitter box occur when the sensor power supply experiences a
The diagnostics LED on the corresponding M12 connector lights up red, corresponding diagnostics data is transmitted to the master via the bus,
all other inputs and outputs will continue to operate correctly.
Disconnecting the M12 connector of the faulty channel results in LED and diagnostics data
Under-voltage / no voltage
There are three
12 VDC ≤ U < 18 VDC: in this case, the splitter box still operates, however: the
appropriate diagnostics data is sent to the master via the bus
7 VDC ≤ U < 12 VDC: in this case, the I/Os no longer operate, however bus communication remains operational:
the
the relevant diagnostics data is sent to the master via the bus. U < 7 VDC : in this case, the splitter no longer operates.
Note: Power supply to the sensor and the Advantys FTB splitter box is provided by the M12 connectors between pins 1 (+24 VDC) and 3 (0 VDC).
The following consequences on the FTB splitter box occur when an output experiences a
The diagnostics LED on the corresponding M12 connector lights up red, the output status LED lights up red.
the corresponding diagnostics data is transmitted to the master via the bus.
To be
There are two
12 VDC ≤ U < 18 VDC: in this case, the splitter box still operates, however: the
the relevant diagnostics data is sent to the master via the bus. U < 12 VDC:
the
the relevant diagnostics data is sent to the master via the bus.
130 | 1606218 02 08/2006 |