ALLEN BRADLEY 1747-L551 PLC Processor

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Identifying the Components of Your Processor 5–9 SLC 5/04 Processor Hardware Features The SLC 5/04 processors offer the following: • program memory sizes of 16K, 32K, or 64K • high-speed performance – 0.90 ms/K typical • control of up to 4096 input and output points • online programming (includes runtime editing) • built-in DH+ channel, supporting: – high-speed communication (57.6K, 115.2K, and 230.4K baud) – messaging capabilities with SLC 500, PLC-2 , PLC-5 , and PLC-5/250 processors • built-in RS-232 channel, supporting: – DF1 Full-Duplex for point-to-point communication; remotely via a modem, or direct connection to programming or operator interface devices. (Use a 1747-CP3 cable for direct connection.) – DF1 Half-Duplex Master/Slave for SCADA type (point-to-multipoint) communication – DH-485 (Use a 1761-NET-AIC with a 1747-CP3 cable to connect to the DH-485 network.) – ASCII I/O for connection to other ASCII devices, such as bar code readers, serial printers, and weigh scales • channel-to-channel (DH+ to DH-485) passthru capability to operator interface devices • channel-to-channel (DF1 Full-Duplex to DH+) passthru (OS401 and later only) • remote I/O passthru • built-in real-time clock/calendar • 1 ms Selectable Timed Interrupt (STI) • 0.50 ms Discrete Input Interrupt (DII) • advanced math features – trigonometric, PID, exponential, floating point, and the compute instruction • indirect addressing • flash PROM provides firmware upgrades without physically changing EPROMS • optional flash EPROM memory module available • keyswitch – RUN, REMote, PROGram (clear faults) • battery-backed RAM • additional instructions such as swap and scale with parameters (SLC 5/04 OS401 processor or higher) • multi-point list (SLC 5/04 OS401 processor or higher) • UL listed, CSA approved, CE compliant Publication 1747-6.2
5–10 Identifying the Components of Your Processor This figure below shows some of the hardware components of the SLC 5/04 processors (1747-L541, 1747-L542, or 1747-L543). SLC 5/04 CPU RUN FLT FORCE DH+ BATT RS232 RUN REM PROG Battery (Battery Provides Back-up Power for the CMOS RAM) Memory Module Keyswitch DH+ Channel 1 DH485, DF1, or ASCII Channel 0 Operating System Memory Module Download Protection Jumper Left Side View Location of Serial and Catalog Numbers Front View Publication 1747-6.2
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Allen-Bradley SLC 500 Modular Hardw
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The information below summarizes th
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iv Table of Contents DH-485 Interfa
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vi Table of Contents Recommendation
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viii Table of Contents Connecting t
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x Table of Contents Calculating Hea
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P-2 Preface How to Use this Manual
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P-4 Preface Conventions Used in thi
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1-2 Quick Start for Experienced Use
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2-2 Selecting Your Hardware Compone
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Page 97 and 98: 7-2 Wiring Your I/O Modules Contact
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Page 101 and 102: 7-6 Wiring Your I/O Modules Feature
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Page 105 and 106: 7-10 Wiring Your I/O Modules Using
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Page 121 and 122: Maintaining Your Control System 9-3
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Troubleshooting 10-3 Replacing Fuse
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Troubleshooting 10-5 If the LEDs in
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Troubleshooting 10-7 If the LEDs in
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Troubleshooting 10-9 Identifying SL
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Troubleshooting 10-11 Troubleshooti
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Troubleshooting 10-13 If the LEDs i
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Troubleshooting 10-17 Identifying S
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Troubleshooting 10-19 If the RS232
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Troubleshooting 10-21 Identifying P
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Troubleshooting 10-25 Returning the
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11-2 Replacement Parts Catalog Numb
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The information in this appendix wi
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Setting Up the DH-485 Network A-3 O
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Setting Up the DH-485 Network A-5 E
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Setting Up the DH-485 Network A-7 I
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Setting Up the DH-485 Network A-9 T
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Setting Up the DH-485 Network A-11
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This appendix provides an overview
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RS-232 Communication Interface B-3
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This appendix provides an overview
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Setting Up the DH+ Network C-3 Wiri
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This appendix provides a brief intr
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Control Networks D-3 DeviceNet Netw
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- Use this Table to Calculate the
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Power Supply Worksheet E-3 Hardware
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This appendix will assist you in ca
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Calculating Heat Dissipation for th
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This appendix: • describes SLC 5/
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Communicating with Devices on an Et
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You can find the following terms us
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Glossary GL-3 Initiator — A node
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Glossary GL-5 Signal Delay — For
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I-2 Index hardware features, 5-2, 6
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I-4 Index DH-485 Communication Inte
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I-6 Index keyswitch positions for t
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I-8 Index Publication 1747-6.2 Q Qu
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I-10 Index T testing inputs, 8-5 ou
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ALLEN BRADLEY 1747-L551 PLC Processor

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