S7-1200 motion control So far, the latest firmware version of the S7-1200 CPU is V4.1. For the S7-1200 CPU of Firmware V4.1, there are more options for motion control. The S7-1200 motion control is divided into three control modes according to the connection driving method: PROFIdrive: The S7-1200 PLC is connected to a drive that supports PROFIdrive via the PROFIBUS/PROFINET-based PROFIdrive for motion control. PTO: The S7-1200 PLC controls the driver by sending a PTO pulse, which can be pulse + direction, A/B quadrature, or positive/reverse pulse. Analog: The S7-1200 PLC controls the drive by outputting analog quantities. First, S7-1200 motion control - PROFIdrive control mode The S7-1200 CPU PROFIdrive of the firmware V4.1 is a standardized drive technology profile for connecting drives and encoders via PROFIBUS DP and PROFINET IO. Drives that support the PROFIdrive profile can be connected according to the PROFIdrive standard. The controller and the drive/encoder communicate via various PROFIdrive message frames. Second, S7-1200 motion control - PTO control method The control mode of the PTO is the control mode of all versions of the S7-1200 CPU so far. The control mode sends a high-speed pulse signal (and direction signal) to the axis driver to control the operation of the axis. This control method is open-loop control, but the user can choose to increase the encoder and use the S7-1200 high-speed counting function (HSC) to acquire the encoder signal to obtain the actual speed or position of the axis for closed-loop control. Third, S7-1200 motion control - analog control mode Another type of motion control for the S7-1200 PLC in Firmware V4.1 is the analog control method. Taking the CPU1215C as an example, the machine integrates two AO points. If the user only needs 1 or 2 axes of control, there is no need to expand the analog module. However, for a CPU such as CPU1214C, the unit does not have an integrated AO point. If the user wants to use the analog control method, the analog module needs to be expanded. The analog control mode is also a closed-loop control mode. The encoder signal is fed back to the S7-1200 CPU in three ways. Wired Earphones,Earphone With Mic,Wired Earbuds With Mic,In Ear Stereo Earphone Guangzhou YISON Electron Technology Co., Limited , https://www.yisonearphone.com
