Siemens AS 235 appendix Performance characteristics

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System architecture

Performance characteristics

Performance characteristics

￿The AS 235, AS 235 H and AS 235 K systems are programmable automation systems of the TELEPERM M process control system based on function blocks. They have a different design and availability, but the same range of functions. The AS 235 K sys- tem is fitted in a wall housing, the AS 235 and AS 235 H systems are fitted in cabinets. The AS 235 H automation system has a redundant central unit to satisfy particularly high demands placed on the availability.

The systems can either be used on their own with local operation and monitoring, or coupled in system networks with central oper- ation and monitoring.

System configuration

The automation systems consist of:

•A basic unit (AS 235, AS 235 H) or a basic system (AS 235 K)

•ES 100 K extension systems (wall housing) or extension units (for fitting in cabinets) as extension for configuring with input/ output modules.

Standard input/output devices enable local communication with the automation system during the configuring and commission- ing phases as well as during later operation. The following can be connected:

•54-cm (21-inch) process monitors

•Process operation keyboard and configuring keyboard, max. 2 of each for 2 independent operating consoles

•Max. 4 logging printers

•1 mini floppy disk unit for booting the system memory and for loading/saving the user memory.

Basic system/basic unit

The basic unit (AS 235, AS 235 H) or the basic system (AS 235 K) mainly contains

• the power supply modules,

I/O modules

There are the following groups of I/O modules:

•Signal modules

•Function modules

•Calculation modules

•Coupling modules.

Signal modules are required for input and output of the process signals, usually without further processing (exception: adapta- tion of characteristic with temperature measurements).

Function modules (closed-loop control modules) and calculation modules have additional performance features which are inde- pendent of the central unit of the automation system and which can be used to increase the total processing performance or the availability by transferring backup functions should the central unit of the automation system fail.

The calculation modules enable the configuring of individual user functions.

Coupling modules enable the connection of I/O modules over larger distances. They additionally enable use of non-intelligent I/O modules of the SIMATIC S5 programmable controllers, plus the ET 100U distributed I/Os for the automation systems.

Memory, configuring

The memory with battery backup of the automation systems is divided into:

•a system memory and

•a user memory.

The write-protected system memory contains the software which always belongs to the automation system, in the form of basic programs and function blocks. Far more than 100 standardized blocks are available for data acquisition, closed-loop control, open-loop control, calculation, supervision, logging, display and operation/monitoring.

•the central processor module,

•a memory module with user memory with 4,000 Kbyte capacity and battery backup and

•the interface modules for the input and output devices and the CS 275 bus system,

each of which is redundant in the AS 235 H system.

The central processor is microprogrammed and has a maximum processing width of 32 bits. Three basic cycles are present for processing (125 ms, 1 s and background level). An acyclic mode can also be defined.

The basic unit of the AS 235 and the basic system of the

AS 235 K each has 6 slots for I/O modules. No I/O modules can be plugged into the basic unit of the AS 235 H systems.

The following can be fitted into the systems as standard:

• AS 235 Max. 90 I/O modules

(basic unit + 6 extension units)

•AS 235 H Max. 91 I/O modules (7 extension units)

•AS 235 K Max. 108 I/O modules

(basic system + eight ES 100 K extension systems)

Instead of programming the system with individual commands and carrying out the required program tests, it is only necessary in the TELEPERM M process control system to configure these complete function blocks in order to obtain a “user program”. In the simplest case, configuring means calling the function blocks with the keyboard, several times if necessary, and then assign- ing the respective linking instructions and parameters. The resulting application-oriented configuring data are then stored in the user memory.

Configuring is possible before the automation system is started up as well as during operation. It is possible to temporarily switch partial functions of the user system out of operation for this purpose.

Convenient configuring using graphic inputs is possible using the PROGRAF AS+ engineering tool which can be executed in a personal computer connected locally to the AS 235/235 H/235 K automation system or centrally to the CS 275 bus system.

The number of usable I/O slots with the AS 235 and AS 235 H can be increased by additional use of ES 100 K extension sys- tems:

•AS 235 Max. 114 I/O modules

•AS 235 H Max. 103 I/O modules

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Siemens PLT 111 · 1999

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Contents Teleperm M Brief description IntroductionFunctions of the AS 235 system ConfiguringGeneral system data System dataTechnical data of automation systems Or user-configured with own System architecture ConfiguringPerformance characteristics Scope of performance TML languageOperation and monitoring Important note Redundancy with AS 235 HRedundancy with the AS 235 H automation system Standard function blocks ConfiguringStandard function blocks Blocks for analog and digital processingData blocks Blocks for signal exchange via CSType Designation Function For modules with Order No Driver blocks for I/O modulesDriver blocks for I/O modules with standardized display Driver blocks for configurable Teleperm ME I/O modulesOrganization blocks Output blocks for printer and process monitorSystem architecture Performance characteristics Summary of system properties Redundancy with AS 235 H Configuring Data blocks Driver blocks for I/O modules Driver blocks for configurable Teleperm ME I/O modules Output blocks for printer and process monitor AS 235 H Connection diagramsAS 235 K ES 100 KGeneral GeneralAS 235 automation system Basic cabinetBasic cabinet Basic unitExtension units Standard I/O devicesBus components Power supply componentsOrdering data Ordering data for basic cabinetAS 235 automation system Basic cabinetOptions for AS 235 basic Cabinet Options for basic cabinet6DS9 002-8BB See page 6/6Extension cabinet Extension cabinetExtension cabinet Options for AS 235 extension CabinetAS 235 H automation system AS 235 HAS 235 H automation system, design 6DS3 305-8BA Example of redundancy with Redundant process I/OsInterface modules for 20-m local bus N-AS AS 235 H automation system Options for AS 235 H basic Cabinet AS 235 H extension cabinet AS 235 H automation Ordering data for extension cabinetSystem Extension cabinet Options for AS 235 H exten Sion cabinetBasic system AS 235 KAS 235 K automation system Basic systemAS 235 K automation system, design Interface module for ES 100 KOrdering data for AS 235 K HousingAS 235 K automation SystemES 100 K extension system ES 100 KES 100 K extension system ES 100 K options Ordering data for ES 100 KES 100 K extension Standard cabinets and accessories Standard cabinets and accessoriesSystem cabinet accessories Standard cabinetsOrdering data for system cabinet accessories Standard cabinet with heat exchanger Configuring values for thermal loadPermissible thermal loading Design Technical dataStandard cabinets IP 20 without heat exchanger 12 Standard cabinet with heat exchanger Standard cabinets IP 54 with heat exchangerProcess connection systems Connections for process signal cablesProcess connection systems Process connection systemsStandard I/O devices to AS 235 / AS 235 K Connection diagramsConnection diagrams for standard I/O devices to AS AS 235 K Connection of personal computer Connection of personal computerConnection of process monitors and parallel monitors Connection of process monitors and parallel monitorsStandard I/O devices to AS 235 H Connection diagrams for standard I/O devices to AS 235 HConnection diagrams Connecting cable Plug Cable Max. cable Order No From Length Summary of connecting cablesProportioning Counter modules Signal modulesFunction modules Summary Configurable I/O modules General technical dataLightning protection with distributed configuration Power supply, earthingModules from other systems Selection criteria for I/O modulesClosed-loop control modules Function modulesFunction modules Closed-loop control modulesAnalog input and output modules Signal modulesSignal modules Binary input and output modules Binary input and output modulesBinary input module, testable, 6DS1 618-8CA Binary output module with 16 relays, 6DS1 605-8BAProportioning and counter modules STRUK-AS 220 EA configuring programProportioning counter module, metering pulse input module Metering pulse input module with 8 channels, 6DS1 607-8ABModules which can be used on the I/O bus Modules which can be used on the I/O bus6DS1 342-1BD With S5KE Explanations for the column RemarksExplanations for the column Release Test mode Mode of operationOperation unit PBT 65 process operation keyboardConfiguring keyboard Configuring unitConfiguring keyboard Mini floppy disk unit Mini floppy disk unitMini floppy disk unit 6DS3 900-8AE Floppy disksBus communication Local range ApplicationApplication Single remote bus DesignRemote range Connection distributor AV Connector board AF Remote busBus converter Ul Redundant remote busApplication Other conditions Connecting cables Bus configurationsBus configurations, examples Connecting cables for remote bus Connecting cablesConnecting cables for 20-m local bus Simatic S5 I/Os ET 100U Expansion unitsCentral controllers Coupling of other systems Interface modules for coupling with other systems, summaryParallel coupling with Simatic S5-115U I/O modules Simatic S5 expansion unitsParallel coupling with S5-115U I/O modules Digital input modules Simatic S5-115U I/O modules appropriate for couplingDigital output modules Digital input/output modulesParallel coupling with Simatic S5-135U/155U I/O modules Parallel coupling with S5-135U/155U I/O modulesSimatic S5-135U/155U I/O modules appropriate for coupling Interface module for Simatic S5 expansion units Interface module for Simatic S5 expansion unitsSerial coupling with Simatic S5/S7 central controllers Simatic S5/S7 central controllersSerial coupling With Simatic S5/S7 central controllers Interface module for Simatic S5/S7 central controllers Interface module for Simatic S5/S7 central controllersSerial coupling with Simatic S5 I/Os Simatic S5 I/Os / ET 100UExi modules ET 100U I/O modules appropriate for couplingInterface module for ET 100U Interface module for ET 100UOrdering of options Ordering of complete systems AS 235 standard configurationOrdering information
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