Siemens AS 235 appendix Summary

Page 60

This catalog is out of date, see note on page 1

I/O modules

Summary

This section lists the available input and output modules of the TELEPERM M range. A detailed description of all mod- ules (including those which are no longer available) with photos, functional diagrams and complete technical data can be found in Internet at:

http://www.ad.siemens.de/teleperm

in the section "Process I/Os - TELEPERM M".

Summary

￿The I/O modules constitute the interface of the automation system to the process. I/O modules of the TELEPERM M process control system are available for all common process signals, transmitters, final control elements and automation tasks associ- ated with process engineering.

The I/O modules are divided into:

• function modules with autonomous functions independent of the central unit,

• signal modules (input/output modules without central-unit- independent interventions in the process) and

• counter modules.

Design

The I/O modules are designed as double-height plug-in mod- ules with a front panel width of 30.48 mm. The front panel con- tains the module fuse, LEDs for diagnosis and error messages and – depending on the type of module – controls, test sockets or a plug for connection of a configuring device (configurable modules).

The I/O modules have 2 base plugs, the I/O bus interface and the process interface.

The modules are divided into 4 areas which are separated from one another by constructive measures and circuit features. Area

1contains the hardware for non-reactive interfacing to the I/O bus of the automation system. This part is supplied via the I/O bus (= 5 V bus). Area 2 contains the interference suppres- sion and protective circuits for the process signals. These pre- vent interfering signals from being transferred to the automation system via the process cables as well as the destruction of mod- ules by overvoltages. Area 3 contains the power supply circuit of the module, area 4 the function-dependent processing circuit.

In the AS 235 system, a specific slot address is unequivocally assigned to each I/O slot. There are two types of I/O modules as far as addressing is concerned:

•I/O modules with jumper/slot addressing

•I/O modules only with jumper addressing

I/O modules with jumper/slot addressing should preferably be operated with slot addressing. The I/O module is then automati- cally assigned the slot address when inserting.

The slot address should be set on the I/O modules only with jumper addressing using the corresponding jumpers prior to inserting the module.

Measures to prevent interference, short-circuit and overload

Great attention has been paid to an interference-proof and over- voltage-resistant design of the process interface.

The socket boards are divided into screening areas which are separated from each other by grounded surfaces. These screening areas attenuate and decouple the noise signals from the process such that the processing circuits of the I/O modules and the central unit are not influenced. All process inputs/out- puts are provided with overvoltage protection circuits. Their overvoltage resistance of 1.5 kV at 1.2 μs / 50 μs satisfies the requirements of the IEC standard 255-4, Class II and they func- tion correctly up to a noise voltage of 1 kV and 1 MHz.

The CE certifications apply if the TELEPERM M installation guidelines are observed.

All analog and binary outputs are short-circuit-proof and over- load-proof.

Power supply

The I/O modules only require DC 24 V as the supply voltage. All auxiliary voltages required by the module are generated by its own switched-mode power supply unit. Thus each I/O module can function on its own as long as the redundant DC 24 V system voltage is present.

As a result of the stand-alone supply and fusing of each I/O mod- ule, the modules are largely non-reactive with respect to the power supply. All internally generated voltages are monitored. Voltage failures lead to an alarm in the system. Failure of the module fuse is signalled by the separate alarm voltage PM on the supply bus.

Module response upon failure of the automation system

Failure of the automation system (hardware fault, user configura- tion in stop status, central processing unit in stop status) is detected by the I/O modules.

The function modules have backup modes which enable opera- tion independent of the central unit. The output modules (signal modules) react to a reset either by retaining the last output value or by switching to the safety setting. The desired reaction is con- figured on the module.

Monitoring, alarms

The functions of the modules connected to the I/O bus of the automation system as well as their interaction with the automa- tion system are monitored by several mechanisms. Each

I/O module monitors its own internal functions and signals e.g. power failure, blown fuse, hardware fault in module electronics to the automation system via the associated driver block.

The module for the I/O bus interface of the automation system detects missing or incorrectly addressed I/O modules as well as multiple addressing on the I/O bus. Faults in the firmware of the module are also detected and signalled by special acknowledg- ment procedures between the function modules and their driv- ers. The maintenance staff are specifically guided towards the location of a fault by means of alarms on the monitor and printer, lighting-up of cabinet lamps and LEDs on the front panels of the modules.

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Siemens PLT 111 · 1999

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Contents Teleperm M Introduction Brief descriptionConfiguring Functions of the AS 235 systemSystem data General system dataTechnical data of automation systems Or user-configured with own Configuring System architecturePerformance characteristics TML language Operation and monitoringScope of performance Redundancy with AS 235 H Redundancy with the AS 235 H automation systemImportant note Configuring Standard function blocksStandard function blocks Blocks for analog and digital processingBlocks for signal exchange via CS Data blocksDriver blocks for I/O modules Type Designation Function For modules with Order NoDriver blocks for configurable Teleperm ME I/O modules Driver blocks for I/O modules with standardized displayOutput blocks for printer and process monitor Organization blocksSystem 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 Connection diagrams AS 235 HAS 235 K ES 100 KGeneral GeneralBasic cabinet AS 235 automation systemBasic cabinet Basic unitStandard I/O devices Extension unitsPower supply components Bus componentsOrdering data for basic cabinet Ordering dataAS 235 automation system Basic cabinetOptions for basic cabinet Options for AS 235 basic Cabinet6DS9 002-8BB See page 6/6Extension cabinet Extension cabinetExtension cabinet Options for AS 235 extension CabinetAS 235 H AS 235 H automation systemAS 235 H automation system, design 6DS3 305-8BA Redundant process I/Os Example of redundancy withInterface 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 Ordering data for extension cabinet AS 235 H automationSystem Extension cabinet Options for AS 235 H exten Sion cabinetAS 235 K Basic systemAS 235 K automation system Basic systemInterface module for ES 100 K AS 235 K automation system, designHousing Ordering data for AS 235 KAS 235 K automation SystemES 100 K ES 100 K extension systemES 100 K extension system Ordering data for ES 100 K ES 100 K extensionES 100 K options Standard cabinets and accessories Standard cabinets and accessoriesSystem cabinet accessories Standard cabinetsOrdering data for system cabinet accessories Configuring values for thermal load Permissible thermal loadingStandard cabinet with heat exchanger Technical data Standard cabinets IP 20 without heat exchangerDesign Standard cabinets IP 54 with heat exchanger 12 Standard cabinet with heat exchangerConnections for process signal cables Process connection systemsProcess connection systems Process connection systemsConnection diagrams Connection diagrams for standard I/O devices to AS AS 235 KStandard I/O devices to AS 235 / AS 235 K Connection of personal computer Connection of personal computerConnection of process monitors and parallel monitors Connection of process monitors and parallel monitorsConnection diagrams for standard I/O devices to AS 235 H Standard I/O devices to AS 235 HConnection diagrams Summary of connecting cables Connecting cable Plug Cable Max. cable Order No From LengthSignal modules Function modulesProportioning Counter modules Summary General technical data Configurable I/O modulesPower supply, earthing Lightning protection with distributed configurationModules from other systems Selection criteria for I/O modulesFunction modules Closed-loop control modulesFunction modules Closed-loop control modulesSignal modules Signal modulesAnalog input and output modules Binary input and output modules Binary input and output modulesBinary input module, testable, 6DS1 618-8CA Binary output module with 16 relays, 6DS1 605-8BASTRUK-AS 220 EA configuring program Proportioning and counter modulesProportioning 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 busExplanations for the column Remarks Explanations for the column Release6DS1 342-1BD With S5KE Mode of operation Test modeOperation unit PBT 65 process operation keyboardConfiguring unit Configuring keyboardConfiguring keyboard Mini floppy disk unit Mini floppy disk unitMini floppy disk unit 6DS3 900-8AE Floppy disksBus communication Application ApplicationLocal range Design Remote rangeSingle remote bus Connector board AF Remote bus Connection distributor AVBus converter Ul Redundant remote busBus configurations Bus configurations, examplesApplication Other conditions Connecting cables Connecting cables Connecting cables for 20-m local busConnecting cables for remote bus Expansion units Central controllersSimatic S5 I/Os ET 100U Interface modules for coupling with other systems, summary Coupling of other systemsSimatic S5 expansion units Parallel coupling with S5-115U I/O modulesParallel coupling with Simatic S5-115U I/O modules Simatic S5-115U I/O modules appropriate for coupling Digital input modulesDigital output modules Digital input/output modulesParallel coupling with S5-135U/155U I/O modules Parallel coupling with Simatic 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 unitsSimatic S5/S7 central controllers Serial coupling With 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 controllersSimatic S5 I/Os / ET 100U Serial coupling with Simatic S5 I/OsET 100U I/O modules appropriate for coupling Exi modulesInterface module for ET 100U Interface module for ET 100UOrdering of complete systems AS 235 standard configuration Ordering informationOrdering of options
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