Rockwell-automation 1747-DSN DISTRIBUTED I/O SCANNER Manual do Utilizador Página 1

Chapter 1Introduction1–3The DIO Scanner is featured below.SCANNERSNDIO LinkConnectorChassis GroundTerminalCOMM LEDFAULT LEDSCANNERCable TieLEDsTwo LED

Chapter 1Introduction1–4The SLC processor scan consists of an input, program, and output scan.During the input scan, the scanner input file (which con

Chapter 1Introduction1–5The scanner can be configured for two different modes of operation. Thesemodes, or configurations, are referred to as 7 and 3

A–B2ChapterWiring and InstallationThis chapter contains the information necessary to:• select the proper DIO system components• install the scanner in

Chapter 2Wiring and Installation2–2The scanner and I/O blocks are connected to the DIO Link in a daisy chainconfiguration. A daisy chain configuratio

Chapter 2Wiring and Installation2–3The DIO Link must be terminated at each end with an 82 Ohm 1/2 wattresistor. The resistor is connected across Line

Chapter 2Wiring and Installation2–4The DH–485 Data Link allows a programming device to communicate withthe SLC processor. Each I/O block has a progra

Chapter 2Wiring and Installation2–5The Isolated Coupler is attached to the DH–485 Data Link using its 6position DH–485 Data Link connector. The I/O b

Chapter 2Wiring and Installation2–6Installation procedures for this scanner are the same as any other discrete I/Oor specialty module.!CAUTION:Disconn

A–B3ChapterConfiguration and ProgrammingThis chapter contains the information necessary to:• configure the SLC processor for use with the scanner• acc

Solid state equipment has operational characteristics differing from those ofelectromechanical equipment. “Application Considerations for Solid StateC

Chapter 3Configuration and Programming3–2The scanner can be configured to communicate with a maximum of 7 or 30I/O blocks. The 7 or 30 I/O block co

Chapter 3Configuration and Programming3–3The SLC processor input and output images for the scanner are dependentupon whether the 7 I/O block or 30 I/O

Chapter 3Configuration and Programming3–47 I/O Block Configuration Output ImageThe 7 I/O block Configuration Output Image consists of eight words (

Input FileControl Word, Word 0O:e.0O:e.1O:e.6O:e.7I/O block 1 Output, Word 1I/O block 6 Output Word 6I/O block 7 Output, Word 70123456789101112131415B

Chapter 3Configuration and Programming3–630 I/O Block Configuration Input ImageThe 30 I/O block configuration input image consists of 32 words (two

Chapter 3Configuration and Programming3–730 I/O Block Configuration Input Image ExampleInput FileI/O block Communication Status, Word 0I:e.0I:e.1I:e.3

Chapter 3Configuration and Programming3–830 I/O Block Configuration Output ImageThe 30 I/O block configuration output image consists of 32 words (

Input FileControl Word, Word 0O:e.0O:e.1O:e.15O:e.16I/O block 1 (Output, Word 1)I/O block 15 (Output Word 15)Reserved, Word 160123456789101112131415Bi

Chapter 3Configuration and Programming3–10The bits in the Communication Status Word(s) indicate whether or not thescanner is communicating with eac

Chapter 3Configuration and Programming3–11The Output Disable bit can be used anytime that the SLC processor is in runmode. The bit has no effect when

A–BDistributed I/O ScannerTable of ContentsiUsing this ManualPurpose of this Manual P–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 3Configuration and Programming3–12Programming Example Using 7 I/O block ConfigurationIn the following programming example, the first rung i

A–B4ChapterOperation and TroubleshootingThis chapter will provide information on :• scanner start–up• scanner normal operation• scanner test mode o

Chapter 4Operation and Troubleshooting4–2During normal operation, the LEDs are illuminated as shown below:SCANNERFAULT LED is offCOMM LED is solid gre

Chapter 4Operation and Troubleshooting4–3CAUTION:Make sure that you clearly understand theimplications of disabling a scanner module slot beforeutiliz

Chapter 4Operation and Troubleshooting4–4The scanner test mode operation is different for the 7 I/O block and 30 I/Oblock configurations.30 I/O block

Chapter 4Operation and Troubleshooting4–5I/O Block Hold Last State OperationDuring normal operation, the I/O block outputs reflect the SLC processorou

Chapter 4Operation and Troubleshooting4–6The scanner has two LEDs that indicate its operating status, FAULT andCOMM. The FAULT LED indicates the scan

SCANNERCOMM FAULTChapter 4Operation and Troubleshooting4–7When the scanner’s LEDs change state, use the following table to isolate thecause.LEDConditi

Chapter 4Operation and Troubleshooting4–8Error codes are reported in word 6 of the SLC processor status file. Theformat of the status word and applic

A–B5ChapterSpecificationsThis chapter provides the scanner specifications. Backplane Current Consumption 900 mA @ 5VDCOperating Temperature+32°F to 1

Distributed I/O ScannerTable of Contentsii30 I/O Block Configuration Input Image Example 3–7. . . . . . . . . . . . . . 30 I/O Block Configuration Out

A–BPPrefaceRead this chapter to familiarize yourself with the rest of the manual. Itprovides information concerning the:• contents of this manual• in

PrefaceP–2The following publications are available to assist you in the use of your DIOsystem:• APS Library, Catalog Number 1747–ND001 Series B (shipp

PrefaceP–3Both warnings and cautions are used in this manual.!WARNING:This symbol means people can be injured if pro-cedures are not followed.WARNING:

A–B1ChapterIntroductionThis chapter contains the following information:• DIO system overview• DIO Link overview• DH–485 Data Link overview• how the sc

Chapter 1Introduction1–2The DIO Link is an Allen–Bradley communications network supporting highspeed transfer of control information. A DIO Link cons