In conjunction with Sinamics drives, Simotion is
the scalable motion control system from Siemens for production machines and enables
central machine concepts to be implemented with one central controller and
distributed concepts with distributed intelligence using several controllers. The
user can choose between PC-based, controller-based or drive-based solutions. The system provides
the functionalities of configuring, programming, testing and commissioning of
the application. With its integrated graphics-based programming methods, Scout
particularly facilities system configuring for first-time users.
Interface to the drive
The most significant innovation of version 4.2. of the Simotion Scout engineering system is the greatly simplified interfacing to the Sinamics drive system. This feature provides the user with an essentially automated means of integrating drives and their components into Simotion. Using the new symbolic assignment of technology objects (TOs) and I/Os to drive objects, the user no longer has to bother with communicating with message frames and addresses because the engineering system now takes care of this for him. Object-to-object assignment takes place by way of a new interconnection dialog. In this dialog, all the compatible partners are listed hierarchically, and the symbolic connection of the components to be interconnected takes place by simple selection. In the dialog area, the Sinamics drives and components and terminal modules with their corresponding I/Os are available for selection. Only compatible elements with symbolic identifiers are listed.
Comparison using graphics-based programming languages
The familiar possibilities of detailed comparison that are provided when using Structured Text (ST) are now also available in the graphics-based programming languages ladder logic (LAD), function block diagram (FBD) and Motion Control Chart (MCC). The new function enables graphic comparisons of programs and shows you at a glance which structures and commands are identical and which ones are different by displaying them in different colors. The system displays identical places in the programs at the same level in order to provide maximum clarity. Individual program parts or commands can now be easily transferred to a reference project using this detailed comparison option. This option can also be used for other project configurations, such as I/Os, TO interconnections, TO alarms and CPU settings, in order to obtain an overall, detailed device comparison and to be able to align the differences. The merging of programs can also be carried out easily.
System trace via networked Simotion controllers
An important innovation for analyzing or optimizing a system is the new system trace feature, which enables up to 128 signals from several Simotion controllers that are interlinked via Profinet to be traced synchronously. Here, the same trigger criteria are available as are used for tracing individual devices, for instance, overshooting of a specific tag threshold value. This is detected on a CPU and then tracing begins on all the configured devices. The data can then be analyzed graphically, enabling optimizations to be derived or malfunctions to be located quickly. This is of particular importance in the case of complex plants such as printing machines with several modular controllers and cross-device synchronous operation as it shortens the required commissioning time and service callout times considerably.
Sizer software is an engineering tool for planning drive applications
The energy analysis takes into account components such as the motor, power module, converter, line reactor, input reactor and output reactor as well as active interface modules. For the energy needs of the mechanical system the power required at the device is taken into account. Friction and degrees of efficiency of the mechanics are included here. For the motors load-dependent losses, such as copper and iron losses and losses due to friction and harmonics, are taken into account. For the power components current-dependent losses, such as conduction and switching losses, are considered. A power-dependent loss due to the output reactive power is also important and load-independent constant losses are included in the calculation. The total balance at an arbitrary operating point is the sum of the individual power losses at the respective operating point.
The Sizer function for drive conversion can be used to generate alternative drive systems with a more favorable energy balance from a previously engineered drive system. On this basis a decision to select the most efficient system can be made.