System architecture, System properties | Siemens AS 488/TM instruction

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System architecture

System properties

■Overview

The AS 488/TM automation system consists of standard hard- ware components from the SIMATIC M7 systems, supplementa- ry components for applications in TELEPERM M, and a memory card with system software whose functions are compatible with the AS 235 automation system.

All system programs are saved permanently on the memory card of the AS 488/TM automation system. The user configura- tions are also saved permanently on the same medium.

The main characteristic of the AS 488/TM system software is the complete simulation of the AS 235 functions on the basis of an RMOS32 real-time operating system on a SIMATIC M7 central processing unit CPU 486-3 or CPU 488-3.

The system software permits configuring of the automation func- tions as with the AS 235 system (using dedicated function blocks, TML and STEP M programs) as well as communication via a system bus.

The AS 488/TM automation systems are available in four differ- ent versions to permit optimum adaptation to different customer requirements:

•As AS 488 with the modular SIMATIC M7-400 packaging sys- tem for connection at the rear according to the SIMATIC guide- lines

•As AS 488 S cabinet system: SIMATIC M7-400 packaging sys- tem optimized for installation in TELEPERM M cabinets with 19" packaging system

•As AS 488 with SIMATIC M7-400 packaging system, installed in SIMATIC PCS 7 cabinets (only with exclusive use of SIMATIC distributed I/Os; see Catalog ST PCS7.A, add-ons for the SIMATIC PCS 7 process control system).

•As AS 488 K compact system: SIMATIC M7-400 packaging system, migrated in TELEPERM M compact system and suit- able for installation in TELEPERM M wall housings or cabinets.

The AS 488/TM system with the CPU 486-3 provides 150% auto- mation performance (in the sense of computing performance) of an AS 235 system, and with the CPU 488-3 it provides 270% to 300% automation performance of an AS 235 system with an equivalent uniform communication performance on the system bus.

Exceptional features of the automation systems are their univer- sal functions for automation tasks, compatibility with the AS 235 systems, as well as the communication capability with the PROGRAF AS+/NT configuring tool, the PCS7/TM-OS operator systems and other automation systems on the CS 275 and on the PROFIBUS-TM (incl. CS-L2 bridge communication with sta- tions on the other system bus in each case).

Both continuous processes and comprehensive batch process- es (production procedure repeated in same or modified form) can be automated by the AS 488/TM system.

The automation systems have a minimum cycle time of 125 ms for closed-loop and open-loop controls. The individually config- ured functions can be processed in a basic cycle (125 ms, 1 s and background level) or in a multiple thereof. An acyclic alarm processing level is present in addition.

■Functions

•Automation system with graded performance and communica- tion via system bus

•PROFIBUS-TM system bus, or CS 275 as alternative

•Central operation and monitoring with the PCS7/TM-OS opera- tor system

•Configuring with graphical user interface using the PROGRAF AS+/NT engineering tool on PC/programming de- vice

•Commissioning support with commissioning terminal based on PC/programming device with known TELEPERM M syntax

•SIMATIC S7/M7 packaging system; integration in TELEPERM M cabinets/housing with MIG I, MIG II or MIG K migration racks

•Distributed I/Os with the modular ET 200M I/O stations (includ- ing Ex(i) modules), ET 200B, ET 200U, ET 200S, ET 200iS (available soon) and ET 200X

•TELEPERM M I/O modules in standard TELEPERM M cabinets with AS 488 S / AS 488 K migration packages

•The PROFIBUS-DP of the AS 488/TM is open for interfacing of certified PROFIBUS-DP devices

•System programs on memory card plus user area for archiving

•4 Mbyte user memory

•32-bit processing of analog values, identical to the AS 235 sys- tem

•Complete range of standard function blocks, identical to the AS 235 system

•User function blocks with convenient TML programming lan- guage, or also the STEP M programming language for open- loop controls

•Online configuring/programming with graphic support by

PROGRAF AS+/NT

•Compatible with preconfigured SIGRID TM V5 (GF/GFE), BATCH X-TM and FUZZY TM program packages

•Reloadable software packages with couplings and I/O links:

-PROFIBUS-AG/AG coupling

-PROFIBUS-PA I/Os

-AS-I I/Os

-SIWAREX M PROFIBUS-DP I/Os

-PROFIBUS-DP I/Os with extended analog formats

-PROFIBUS-DP I/Os: panels based on Windows CE

-PROFIBUS-DP I/Os: IP 262 closed-loop control module of ET 200U; reloadable driver block as standard on the memory card of the AS 488/TM

-Options: special driver blocks for use of SIMOVERT, MICRODRIVES, SIPART DR, FM 350, CEAG devices, etc.

2/2	Siemens PLT 112 · 2002

AS 488/TM specifications

The Siemens AS 488/TM is a cutting-edge solution in the realm of industrial automation and control. Designed specifically for high-performance applications, this device serves as a programmable logic controller (PLC) offering enhanced capabilities for process automation. The AS 488/TM stands out in the marketplace for its robust architecture, sophisticated features, and compatibility with various industrial protocols.

One of the pivotal features of the Siemens AS 488/TM is its integrated communication capabilities. It supports multiple communication protocols, such as Profibus, Profinet, and Ethernet/IP, facilitating seamless integration within diverse industrial environments. This flexibility ensures that the AS 488/TM can communicate with various devices, sensors, and actuators, providing a comprehensive solution for modern manufacturing needs.

In terms of processing power, the AS 488/TM is equipped with a high-performance CPU that can handle complex algorithms and data processing with ease. This enables the controller to manage intricate automation tasks, from simple control functions to complex multi-axis motion control. The device also comes with expandable I/O options, allowing users to tailor the system to meet specific application requirements. With a wide range of digital and analog inputs and outputs, the AS 488/TM ensures accurate monitoring and control of various processes.

Another notable characteristic of the AS 488/TM is its user-friendly programming interface. Siemens has developed the TIA Portal (Totally Integrated Automation Portal), a software platform that simplifies the programming and configuration of the PLC. This intuitive interface allows users to program the device using various programming languages, including Ladder Logic, Function Block Diagram, and Structured Text. The TIA Portal enhances productivity by providing simulation tools for testing and debugging applications before deployment.

The AS 488/TM also emphasizes safety and reliability. It complies with international safety standards and incorporates features that ensure safe operation in critical applications. Redundant power supplies and fail-safe mechanisms are integrated to minimize downtime and protect both personnel and equipment.

Moreover, the Siemens AS 488/TM is designed with future scalability in mind. As industries evolve and technology advances, the AS 488/TM can adapt to new requirements, ensuring a long service life and ongoing relevance in a rapidly changing landscape. Overall, the Siemens AS 488/TM is an impressive PLC that combines innovative features, robust technology, and flexible integration capabilities, making it an ideal choice for modern industrial automation systems.

Siemens AS 488/TM manual System architecture, System properties, Functions

Models: AS 488/TM