Digital Inputs/Outputs; Application - Siemens SINUMERIK 840D sl Manual

Connecting

9.9 Digital inputs/outputs

9.9 Digital inputs/outputs
9.9.1

Application

Connecting sensors and actuators
Digital inputs and outputs can be used to connect various sensors and actuators to the two
12-pin connectors (X122 and X132) on the front panel.
The following types of digital I/O are used:
● Digital inputs
● Bidirectional digital inputs/outputs
The assignment of I/Os to functions can be parameterized freely by the user. Special
functions, such as probe inputs (rapid inputs only) and cam outputs, can also be assigned to
the inputs/outputs.
The enables for the drive units and/or motors (Line Module, Motor Module) connected to the
control unit can be switched using the digital inputs.
For further information on NCU 7x0 and NX 1x terminal assignment, see:
● The "Communication in the system" section of the "Machine Configuration Guidelines"
● The "IBN CNC: NCK, PLC, Drive" Commissioning Manual ("Tips" section)
Access to digital inputs/outputs
Note
The digital inputs/outputs are updated in accordance with the set PROFIBUS bus clock pulse
for SINAMICS Integrated.
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System Manual
Manual, 03/2010, 6FC5397-0AP10-3BA0
NCU