MC-interpolator OB

時(shí)間：2021-07-27作者：上海騰希電氣技術(shù)有限公司瀏覽：429

MC-interpolator OB



Description

When you create a technology object for S7?1500 Motion Control, the organization block MC?Interpolator [OB92] for processing the technology objects is created automatically. The Motion Control functionality of the technology objects creates its own execution level and is called in the SIMATIC S7?1500 execution system according to the MC?Servo [OB91] application cycle.

The MC?Interpolator [OB92] is write-protected. The contents cannot be changed.

The evaluation of the Motion Control instructions as well as the monitoring and the setpoint generation for all technology objects configured on the CPU (Motion Control) is performed within the MC?Interpolator [OB92].

The MC?Interpolator [OB92] is called at the end of processing of the MC?Servo [OB91]. The clock ratio between MC?Interpolator [OB92] and MC?Servo [OB91] is always 1:1.

Process response

You must select the application cycle of the MC?Servo [OB91] long enough to allow all the technology objects for Motion Control to be processed in one application cycle. If the application cycle is not observed, overflows occur. Note the following response to overflows:

The CPU tolerates a maximum of three consecutive overflows of MC?Interpolator [OB92].

The execution of an MC?Interpolator [OB92] may only be interrupted by an MC?Servo [OB91] call.

If more overflows or interruptions occur, the CPU switches to STOP mode.


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