Siemens SPC3 manual Timing in the Asynchronous Intel Mode X86 Mode, ST-Vers, Parameter Min Max

Page 51

 

 

SPC3

PROFIBUS Interface Center

 

 

 

 

 

 

8.5.3 Timing in the Asynchronous Intel Mode (X86 Mode) :

In 80X86 operation, SPC3 acts like memory with ready logic. The access times depend on the type of accesses.

The request for an access to SPC3 is generated from the negative edge of the read signal or the positive edge of the write signal.

SPC3 generates the Ready signal synchronously to the fed in pulse. The Ready signal is reset when the read signal or write signal is deactivated. The data bus is switched to the Tristate with XRD = 1.

No.

 

AMI-Vers.

ST-Vers.

 

 

 

 

 

Parameter

Min

Max

Min

Max

 

 

 

 

 

Unit

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

Address-Setuptime to RXD ↓ or XWR ↓ XRD ↓ to Data valid (Zugriff auf RAM)

XRD ↓ to Data valid (Zugriff auf die Register)

Address (AB10..0) Holdtime after XRD or XWR − XCS ↓ Setuptime to XRD ↓ or XWR ↓ XRD-Puls-Width

Data Holdtime after XRD −

Read/Write-Inactive-Time

XCS Holdtime after XRD − or XWR − XRD/XWR ↓ to XRDY ↓ (Normal Ready) XRD/XWR ↓ to XRDY ↓ (Early Ready) XREADY-Holdtime after XRD or XWR Data Setuptime to XWR −

Data Holdtime after XWR − XWR-Pulse-Width * XRD, XWR Cycletime last XRD ￿ to XCS ￿ XCS ￿ to next XWR ￿

XWR ￿ to next XWR ￿ (XCS don’t care)

0

0

- 5

6T – 10

(115)

2

10

0

4T + 5

3T + 5

4.3

10

10

4T

6T

4T + 10

2T + 10

6T

4T+5

(88,3)

4T+18

(101,3)

6

5T+ 14

4T+ 14

12.8

0

0

-5

6T − 10

(115)

3.1

10

0

6

10

10

4T

6T

4T + 10

2T + 10

6T

3T+42.5

(105)

4T+20.2

(103,5)

10.2

5T + 16

4T + 12

22

ns ns

ns

ns ns ns

ns ns ns ns ns ns ns ns ns ns ns ns ns

Explanations:

 

T

=

Clock pulse cycle (48MHz)

TBD

=

to be defined

(1

=

Access to the RAM

 

(2

=

Access to the registers/latches

 

(3

=

For T = 48 MHz

 

SPC3 Hardware Description

V1.3

Page 49

Copyright (C) Siemens AG 2003 All rights reserved.

 

2003/04

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Page 50 Page 52
Contents Simatic NET Page SIM Atic NET SPC3 Hardware Description Profibus Interface CenterRelease Date Changes VersionsDirectory Mode RegisterStatus Register Interrupt Controller Watchdog Timer DPBuffer Structure Description of the DP Services11.3 Diagnostics Processing from the System View Asic TestPin Assignment Example for the RS 485 Interface SPC3 Introduction Function Overview Cmos Pin DescriptionCPD Cmos with pull down TTLt Schmitt trigger V1.3 Memory Allocation Memory Area Distribution in the SPC35FFH Segment Processor Parameters Latches/Register Significance Write Access OCH 0DH0EH 0FH Organizational Parameters RAM 1DH 1AH1BH 1CHAsic Interface Mode RegisterDisstartcontrol EOI Mode Register 1 Mode-REG1, writableSTARTSPC3 Exiting the Offline stateStatus Register Status Register Bit15 . .readable FdlindstSPC3 IRR IMR Interrupt ControllerDxout IAR IMRResponse Time Monitoring Watchdog TimerAutomatic Baud Rate Identification Baud Rate MonitoringDPBuffer Structure PROFIBUS-DP InterfaceUart Aux-Buffer Management RAMDescription of the DP Services SetSlaveAddress SAP55Sequence for the SetSlaveAddress Utility SetParam SAP61 Parameter Data StructureParameter Data Processing Sequence SPC3 CheckConfig SAP62Diagnostics Processing Sequence SlaveDiagnosis SAP60SPC3 Structure of the Diagnostics Buffer WriteReadData / DataExchange DefaultSAPWriting Outputs Reading Inputs GlobalControl SAP58 UserWatchdogTimerGetConfig SAP59 ReadInputs SAP56ReadOutputs SAP57 Bus Interface Unit BIU Hardware InterfaceUniversal Processor Bus Interface General DescriptionBus Interface V1.3 XINT/MO ModeLow Cost System with 80C32 Switching Diagram PrinciplesSystem X86-Mode Application with the 80 C SPC3Application with th 80 C Interface Signals UartAsic Test DC-Specifikation of the I/O- Drivers Technical DataMaximum Limit Values Permitted Operating ValuesAC-Specification for the Output Drivers Tabel 8.3 DC-Specifikation of the I/O- DriversCurrent Tabelle 8.5 Leakage current of the output drivers Clock Pulse Timing Timing CharacteristicsSYS Bus Interface Clock pulse 48 MhzTBD ResetTiming in the Synchronous C32-Mode ST-Vers Min Max UnitSynchronous Intel-Mode, Processor-Write-Timing Synchronous Intel-Mode, Processor-Read-TimingTiming in the Asynchronous Intel Mode X86 Mode ST-VersParameter Min Max XWR XCS Asynchronous Intel-Mode, Processor-Read-TimingXRD XCS Xready Asynchronous Intel-Mode, Processor-Write-TimingSynchronous Motorola-Mode, Processor-Read-Timing 4.1 74.2Timing in the Asynchronous Motorola-Mode for example, 68HC16 Synchronous Motorola-Mode, Processor-Write-TimingAsynchronous Motorola-Mode, Processor-Read-Timing XCS XdsackAsynchronous Motorola-Mode, Processor-Write-Timing Pulse 48 MHz Serial Bus InterfaceHousing PQFP-44 Housing SPC3 Hardware Description 14.15 Symbol Min Typ Max AMI-Vers13.65 13.90TXD Profibus InterfacePin Assignment RTSSN65ALS1176 Example for the RS 485 InterfaceTechnical contact person at ComDeC in Germany AppendixAddresses Profibus User Organisation10.3.2 SPC3 ST General Definition of TermsOrdering of ASICs 10.3.1 SPC3 AMIStatdiag Appendix a Diagnostics Processing in Profibus DPDiagnostics Bits and Expanded Diagnostics IntroductionIdentifier Byte 7 has Etc Identifier Byte 0 has Combi Diagnostics Processing from the System ViewSingle Diagnostics Simatic S5 / COM ETData format in the Siemens PLC Simatic Appendix B Useful InformationPage Siemens Aktiengesellschaft

SPC3 specifications

Siemens SPC3 is a state-of-the-art solution designed to enhance industrial automation, providing businesses with a robust platform for managing complex processes efficiently. This device epitomizes Siemens' commitment to innovation, blending cutting-edge technology with user-friendly features to deliver optimized performance across various applications.

One of the standout features of the Siemens SPC3 is its advanced processing capabilities. Equipped with high-performance processors, it can handle various tasks simultaneously, ensuring seamless operation even in demanding environments. This performance is complemented by enhanced memory capacity, which allows for increased data handling and improved execution speed, crucial for real-time monitoring and control applications.

The Siemens SPC3 also integrates a modular design, enabling flexibility and scalability. This characteristic allows users to customize their systems according to specific operational needs, adding or removing components as required. This adaptability is particularly beneficial for businesses that aim to scale their operations without incurring the substantial costs associated with overhauling existing systems.

Furthermore, the SPC3 employs the latest communication technologies, ensuring interoperability with various devices and systems. It supports industry-standard protocols, facilitating efficient data exchange between components. This connectivity is vital for establishing smart factories and enhancing overall productivity by creating a unified ecosystem.

Another significant aspect of the Siemens SPC3 is its focus on security. As cyber threats in industrial settings become increasingly sophisticated, Siemens prioritizes safeguarding user data and system integrity. The SPC3 incorporates advanced security features, including encryption and access control measures, to protect against unauthorized access and ensure data confidentiality.

Siemens has also emphasized ease of use in the SPC3. The interface is designed to be intuitive, allowing operators to navigate and configure the system effortlessly. Coupled with comprehensive software tools, users are empowered to implement changes swiftly while minimizing downtime.

In terms of energy efficiency, the SPC3 incorporates technologies that allow for optimized energy consumption, aligning with sustainability goals prevalent in today’s industries. By reducing energy waste, businesses not only lower operational costs but also contribute to environmental conservation.

In summary, Siemens SPC3 represents a significant advancement in industrial automation technology. Its high-performance processing, modular adaptability, advanced communication capabilities, robust security measures, and user-friendly design make it an ideal choice for businesses striving for efficiency and innovation in their operations. The SPC3 is more than just a control device; it is a comprehensive solution that meets the evolving demands of modern industries.
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