ALLEN BRADLEY 1747-L551 PLC Processor

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C–2 Setting Up the DH+ Network SLC 5/04 Processors and DH+ Communication The SLC 5/04 processors let you operate DH+ communication protocol by means of the DH+ communication channel 1. The SLC 5/04 processors also support DF1 full-duplex protocol, DF1 half-duplex master and slave protocol, ASCII, or DH-485 via its RS-232 port, channel 0. The 3-pin connector, provided with the SLC 5/04 processors, is for actual DH+ communication and the 8-pin connector is for monitoring DH+ communication. DH+ Channel 1 3-Pin Pin Pin Name 1 DH+ Data Line 1 2 Shield 3 DH+ Data Line 2 DH+ Channel 1 8-Pin Pin Pin Name 1 DH+ Data Line 2 2 No Connection 3 Shield 4 +24V 5 No Connection 6 DH+ Data Line 1 7 +24V Return 8 No Connection The location of channel 1 is detailed in the drawing below. SLC 5/04 CPU RUN FLT BATT RUN FORCE DH+ RS232 REM PROG DH+ Channel 1 Front View Publication 1747-6.2
Setting Up the DH+ Network C–3 Wiring Connectors for DH+ Communication for SLC 5/04 Processors To connect Allen-Bradley devices with other devices over DH+, you must wire the 3-pin cable connectors so that communication can occur through the cabling. Each device requires its own node address. PROG R E M RUN BATT PROC FORCE COMM SLC 5/04 CPU SLC 5/04 CPU RUN FLT BATT RUN FORCE RUN FORCE DH+ FLT DH+ RS232 BATT RS232 REM PROG RUN REM PROG A B 1 Shield 2 Clear Shield Blue Connector Terminating Resistor Ê Ê Connector Clear Shield Blue 1 Shield 2 PLC–5/20 PROGRAMMABLE CONTROLLER Terminating Resistor Ê Ê Connector Clear Shield Blue 1 Shield 2 Belden #9463 Belden #9463 Terminate the DH+ link on both ends by connecting a 150Ω, 1/2W resistor between terminals 1 and 2 of the 3-pin connector when you are communicating at 57.6K baud with a PLC-5 processor or 115.2K baud with other SLC 5/04 processors. Use an 82Ω, 1/2W resistor if you are communicating at 230.4K baud with other SLC 5/04 processors or Series E enhanced PLC-5 processor. 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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2-10 Selecting Your Hardware Compon
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3-2 System Installation Recommendat
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3-10 System Installation Recommenda
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3-12 System Installation Recommenda
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4-2 Mounting Your SLC 500 Control S
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5-2 Identifying the Components of Y
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5-10 Identifying the Components of
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6-2 Installing Your Hardware Compon
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6-10 Installing Your Hardware Compo
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7-2 Wiring Your I/O Modules Contact
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7-4 Wiring Your I/O Modules Prepari
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7-6 Wiring Your I/O Modules Feature
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7-8 Wiring Your I/O Modules Octal L
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7-10 Wiring Your I/O Modules Using
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This chapter describes how to start
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Starting Up Your Control System 8-3
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This chapter covers the following m
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Maintaining Your Control System 9-3
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In this chapter, you will learn abo
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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 10-15 If the LEDs i
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Troubleshooting 10-17 Identifying S
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Page 151 and 152: Troubleshooting 10-25 Returning the
Page 153 and 154: Troubleshooting 10-27 Troubleshooti
Page 155 and 156: Troubleshooting 10-29 Troubleshooti
Page 157 and 158: 11-2 Replacement Parts Catalog Numb
Page 159 and 160: The information in this appendix wi
Page 161 and 162: Setting Up the DH-485 Network A-3 O
Page 163 and 164: Setting Up the DH-485 Network A-5 E
Page 165 and 166: Setting Up the DH-485 Network A-7 I
Page 167 and 168: Setting Up the DH-485 Network A-9 T
Page 169 and 170: Setting Up the DH-485 Network A-11
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Page 177 and 178: RS-232 Communication Interface B-3
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Page 199 and 200: This appendix provides a brief intr
Page 201 and 202: Control Networks D-3 DeviceNet Netw
Page 203 and 204: - Use this Table to Calculate the
Page 205 and 206: Power Supply Worksheet E-3 Hardware
Page 207 and 208: This appendix will assist you in ca
Page 209 and 210: Calculating Heat Dissipation for th
Page 215 and 216: This appendix: • describes SLC 5/
Page 217 and 218: Communicating with Devices on an Et
Page 229 and 230: You can find the following terms us
Page 231 and 232: Glossary GL-3 Initiator — A node
Page 233 and 234: Glossary GL-5 Signal Delay — For
Page 235 and 236: I-2 Index hardware features, 5-2, 6
Page 237 and 238: I-4 Index DH-485 Communication Inte
Page 239 and 240: I-6 Index keyswitch positions for t
Page 241 and 242: I-8 Index Publication 1747-6.2 Q Qu
Page 243 and 244: I-10 Index T testing inputs, 8-5 ou
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ALLEN BRADLEY 1747-L551 PLC Processor

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