Allen-Bradley SLC 500 Reference Manual
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Allen-Bradley SLC 500 Reference Manual

Allen-Bradley SLC 500 Reference Manual

Family of programmable controllers
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Summary of Contents for Allen-Bradley SLC 500

  • Page 1 Allen-Bradley Addressing SLC 500 Family of Programmable Reference Controllers Manual...
  • Page 2 Reproduction of the contents of this copyrighted publication, in whole or in part, without written permission of Allen-Bradley company, Inc., is prohibited. Throughout this manual we use notes to make you aware of safety considerations.

  • Page 3: Table Of Contents

    Data Table Addressing for the SLC 500 Family of Processors Introduction This addressing reference helps you specify data table addresses in SLC 500 fixed and modular programmable controllers. It contains information for the following processors: all SLC 500 Fixed Programmable Controllers...
  • Page 4 This is an entry for INTERCHANGE software. It is also an entry for 6200 programming software in sending a message from other stations to a SLC 500 processing station. It is not used in 6200 programming software for internal addressing.

  • Page 5: Memory Maps

    3 If non SLC 500 devices exist on the DH-485 link, use this area for network transfer. You can use either binary (B) or integer (N) file types by specifying the appropriate letter for x. Otherwise, you can use file 9 for user-defined files.
  • Page 6 Logical Addressing for the Status Element section. ASCII string, floating-point, and network file types are not available on SLC 500, SLC 5/01, SLC 5/02, SLC 5/03 processors. You can address individual bits for the following elements in a data table...

  • Page 7: Logical Addressing For I/O Image Elements

    SLC 500 Family of Programmable Controllers Addressing Reference Logical Addressing for the The file for output image elements is file 0 of the data table. This file accommodates up to 256 output image elements. Input/Output Image Elements The file for input image elements is file 1 of the data table. This file accommodates up to 256 input image elements.
  • Page 8 SLC 500 Family of Programmable Controllers Addressing Reference Figure 5 Bit Map of I/O Image Element for 24-bit Discrete I/O Word 0 I/O Bit Number Word 1 I/O Bit Number Figure 6 Bit Map of I/O Image Element for 32-bit Discrete I/O...

  • Page 9: Logical Addressing For The Status Elements

    SLC 500 Family of Programmable Controllers Addressing Reference Logical Addressing for the The file for status elements is file 2 of the data table. The number of status elements in this file (n) is processor dependent, see Figure 8. Status Elements...
  • Page 10 Channel 0 Active Node Table word 15 Time-of-Day Minutes 1 Not all processors support all status words. SLC 500 and SLC 5/01 processors only support words 0 – 15. SLC 5/02 processors only support words 0 – 32. SLC 5/03 processors support words 0 – 82...

  • Page 11: Logical Addressing For Integer Elements

    SLC 500 Family of Programmable Controllers Addressing Reference Logical Addressing for The recommended default file for integer elements is file 7 of the data table. This file accommodates up to 256 integer elements. If your Integer Elements application requires more than 256 integer elements, specify one or more files (10 –...
  • Page 12 SLC 500 Family of Programmable Controllers Addressing Reference Table F Parameters of Integer Elements Description PLC Data Type Valid Range Integer Element signed word –32,768 thru +32,767 DB n — 0 or 1 Table G Examples for Integer Element 3 in the Default File (File 7)

  • Page 13: Logical Addressing For Binary Elements

    SLC 500 Family of Programmable Controllers Addressing Reference Logical Addressing for The recommended default file for binary elements is file 3 of the data table. This file accommodates up to 256 binary elements. If your Binary Elements application requires more than 256 binary elements, specify one or more files (10 –...
  • Page 14 SLC 500 Family of Programmable Controllers Addressing Reference Table H Parameters of Binary Elements Description PLC Data Type Valid Range Binary Element signed word –32,768 thru +32,767 DB n — 0 or 1 Table I Examples for Binary Element 2 in the Default File (File 3)

  • Page 15: Logical Addressing For Floating-Point Elements

    SLC 500 Family of Programmable Controllers Addressing Reference Logical Addressing for The recommended default file for floating-point elements is file 8 of the data table. This file accommodates up to 256 floating-point elements. If Floating-Point Elements your application requires more than 256 floating-point elements, specify one or more files (10 –...
  • Page 16 SLC 500 Family of Programmable Controllers Addressing Reference Table K Examples for Floating-Point Element 9 in the Default File (File 8) To address the Use this form Entire Element $F8:9...

  • Page 17: Logical Addressing For Timer Structures

    SLC 500 Family of Programmable Controllers Addressing Reference Logical Addressing for The recommended default file for timer structures is file 4 of the data table. This file accommodates up to 256 timer structures. If your application Timer Structures requires more than 256 timer structures, specify one or more files (10 –...
  • Page 18 SLC 500 Family of Programmable Controllers Addressing Reference Table L Mnemonics used with Timers Mnemonic Description PLC Data Type Valid Range Enabled 0 or 1 Timer Timing 0 or 1 Done 0 or 1 Preset Value signed word 0 thru +32,767...

  • Page 19: Logical Addressing For Counter Structures

    SLC 500 Family of Programmable Controllers Addressing Reference Logical Addressing for The recommended default file for counter structures is file 5 of the data table. This file accommodates up to 256 counter structures. If your Counter Structures application requires more than 256 counter structures, specify one or more files (10 –...
  • Page 20 –32,768 thru +32,767 This bit available only in SLC 500 fixed-style processors equipped with an HSC (high-speed counter). In addi- tion, the lower limit of valid range for PRE and ACC is zero, not –32,768 for these processors. Table O...

  • Page 21: Logical Addressing For Control Block Structures

    SLC 500 Family of Programmable Controllers Addressing Reference Logical Addressing for The recommended default file for control block structures is file 6 of the data table. This file accommodates up to 256 control block structures. If Control Block Structures your application requires more than 256 control block structures, specify one or more files (10 –...
  • Page 22 SLC 500 Family of Programmable Controllers Addressing Reference Table P Mnemonics used with Control Blocks Mnemonic Description PLC Data Type Valid Range Enabled 0 or 1 Unloading Enabled 0 or 1 Done 0 or 1 Stack Empty 0 or 1...
  • Page 23 SLC 500 Family of Programmable Controllers Addressing Reference binary addressing examples, 12 addressing examples, 6 bit map, 11 bit map, 5 parameters, 12 parameters, 6 bit map integer binary, 11 addressing examples, 10 control block, 18 bit map, 9 counter, 16...
  • Page 24 Spain (Barcelona) (34-3) 331-7004 PLC, PLC-2, PLC-3, and PLC-5 are registered trademarks of Allen-Bradley Company, Inc. Pyramid Integrator, Data Highway Plus, DH+, INTERCHANGE, PLC-5/25, SLC, SLC 5/01, SLC 5/02, SLC 5/03, and SLC 500 are trademarks of Allen-Bradley Company, Inc.
  • Page 25 Qatar Romania Russia–CIS Saudi Arabia Singapore Slovakia Slovenia South Africa, Republic Spain Switzerland Taiwan Thailand The Netherlands Turkey United Arab Emirates United Kingdom United States Uruguay Venezuela Yugoslavia Allen-Bradley Headquarters, 1201 South Second Street, Milwaukee, WI 53204 USA, Tel: (1) 414 382-2000 Fax: (1) 414 382-4444 Publication 5000-6.4.23 February 1995 PN 955118-24 Supersedes Publication 5000-6.4.23 August 1994...

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