Siemens SIMOTION Function Manual page 42

Output Cam TO - Part I
3.3 Configuring the Output Cam technology object
Field/button
Cam output on
Cam output (CAM)
High-speed digital
output (DO)
Standard digital
output (DO)
Logical operation
(Page 34)
42
Meaning/information
If the output checkbox is activated and the cam output (CAM) radio button selected, the cam
output is on the basis of an internal time stamp.
The temporal resolution of the cam output depends on the hardware used. In the case of D4x5-2
and the TM17 High Feature, the resolution is, for example, 1 µs.
Supported hardware:
● SIMOTION D410-2
● SIMOTION D4x5-2 (X142)
● TM15, TM17 High Feature
The I/O channel must be configured as CAM.
For more details, see cam output types. (Page 22)
Note
Cam output (CAM) or high-speed digital output (DO) are also known as high-speed, hardware-
supported output cams.
If the output checkbox is activated and the "High-speed digital output (DO)" radio button selected,
the output cam is output via onboard outputs of the SIMOTION CPU. The output is via a hardware
timer and the cam output is achieved with a resolution with respect to time < servo cycle clock.
The time that it takes for the axis to reach the output cam switching position with reference to
the processing cycle is calculated by linear extrapolation. Calculated from the beginning of the
1st position control cycle, the output cam function is triggered by a hardware time when this time
is reached.
Supported hardware:
The onboard I/O of the following CPUs is used:
● SIMOTION D4x5 (interface X122, X132), 8 high-speed cam outputs, as of V4.1 (the I/O
channel must be configured as DO)
● SIMOTION D410 (interface X121), 4 high-speed cam outputs, as of V4.1 (the I/O channel
must be configured as DO)
● SIMOTION C240, C240 PN (interface X1), 8 high-speed cam outputs
For more details, see cam output types. (Page 22)
Note
Cam output (CAM) or high-speed digital output (DO) are also known as high-speed, hardware-
supported output cams.
If the output checkbox is activated and the "Standard digital output (DO)" radio button selected,
the output cam is output in the servo cycle clock.
The temporal resolution of the cam output is usually reduced by the output cycle of the I/O used.
Supported hardware:
● Onboard outputs (SIMOTION D, Controller Extension CX, SINAMICS Control Unit CU3xx)
● Centralized I/O (SIMOTION C)
● Distributed I/O via PROFIBUS DP / PROFINET IO (e.g. ET 200, etc.)
● Drive I/O TM15, TM15 DI/DO, TM17 High Feature, TM31, TM41, TB30
For more details, see cam output types. (Page 22)
You can assign several TO output cams to an output. Select the logical link of the output cam
signal with the output. During the operation, all output cam signals are first grouped together
with the logical operation OR. The result of this operation is then combined with the output cam
signals to which a logical AND was assigned.
Output Cams and Measuring Inputs
Function Manual, 04/2014