MLD-S Tech-FB Library Description - Bosch Rexroth

Rexroth MLD-S Tech-FB Library MLD-S Technology Library 1-1
1 MLD-S Technology Library
1.1 Introduction and Overview
1.2 Common Definitions
Technology Function Blocks (Tech-FB’s) enhance the basic functionality
of MLD / MLC and provide application specific functionality such as Flying
Shear, Cross Cutter, Register-Controller.
Technology Function Blocks are provided by an internal IEC library (e.g.
“MX_Technology.lib” for MLD or "ML_Technology.lib" for MLC).
This documentation describes the functionality as well as in- and output
description of the provided Technology Function Blocks.
Every function and function block provides a common error structure and
defined behavior of the most common in- and outputs.
All function blocks with "Execute" input and "Done" output have the same
edge-oriented runtime behavior. The rising edge on the "Execute" input of
a function block triggers the execution.
When the result is available, "Done" is set to TRUE. When an error is
present, "Error" is set to TRUE and "ErrorID" to an error identifier. Unless
"Execute" is reseted, "Done" or "Error" remain at their values. When
"Execute" is reset, "Done", "Error" and "ErrorID" are reset.
If "Execute" is already FALSE when the command completes, the outputs
"Done" or "Error" and "ErrorID" remain active for exactly one cycle.
Function blocks with an "Enable" input are working in a level-oriented
way. The "Enable" input normally is transmitted to the corresponding
functionality (example: MC_Power).
The following figure shows typical timing diagrams of Execute, Done and
Error:
Fig. 1-1: Timing diagrams of Enable, Active, Done and Error
DOK-MLD-S*-TechFB*****-AW01-EN-D