Siemens SIMOTION Function Manual page 104

Cam Track TO - Part II
4.3 Configuring the TO Cam Track
Field/button
High-speed digital
output (DO)
Standard digital
output (DO)
Output
104
Meaning/information
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 67)
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 67)
The output can be symbolically assigned via the assignment dialog (see Chapter Symbolic
assignment (as of V4.2) in the SIMOTION Runtime Functions manual) using the
the Output field (symbolic assignment is activated by default in projects as of V4.2).
If symbolic assignment is not active or if the CPU version is < V4.2, a physical output is assigned
by entering the HW address and bit number in the Output field.
Enter the logical HW address of the output to which the output cam signal is to be applied. Only
the output cam signal may be present at this address. If other objects are already using this
output, an error occurs that is reported following a download to the target system. The logical
HW address must be located outside the process image and therefore be greater than 63.
For details see Cam output types (Page 22)
Button for opening the assignment dialog (see Chapter Symbolic assignment (as of V4.2) in the
SIMOTION Runtime Basic Functions manual). Select a parameter or an address in the
assignment dialog.
Displays whether offline data or online data is shown
● Blue field = offline display
● Yellow field = online display
button in
Output Cams and Measuring Inputs
Function Manual, 04/2014