Lakeshore Learning Materials 642 Manual do Utilizador descarregar pdf (Página 7)

Lake Shore Model 642 Electromagnet Power Supply User’s Manual

Table of Contents vii

TABLE OF CONTENTS (Continued)

Chapter/Section Title Page

5.1.4.2 Status Register Sets ...................................................................................................................... 5-8

5.1.4.2.1 Standard Event Status Register ................................................................................................. 5-8

5.1.4.2.2 Operation Event Register Set..................................................................................................... 5-9

5.1.4.3 Error Status Register Sets ........................................................................................................... 5-10

5.1.4.3.1 Hardware Error Status Register Set ......................................................................................... 5-10

5.1.4.3.2 Operational Error Status Register Set ...................................................................................... 5-11

5.1.4.4 Status Byte and Service Request (SRQ) ..................................................................................... 5-12

5.1.4.4.1 Status Byte Register................................................................................................................. 5-12

5.1.4.4.2 Service Request Enable Register............................................................................................. 5-13

5.1.4.4.3 Using Service Request (SRQ) and Serial Poll.......................................................................... 5-13

5.1.4.4.4 Using Status Byte Query (*STB) .............................................................................................. 5-13

5.1.4.4.5 Using Message Available (MAV) Bit)........................................................................................ 5-13

5.1.4.4.6 Using Operation Complete (*OPC) and Operation Complete Query (*OPC?).......................... 5-14

5.1.5 IEEE-488 Interface Example Programs........................................................................................... 5-14

5.1.5.1 IEEE-488 Interface Board Installation for Visual Basic Program.................................................. 5-14

5.1.5.2 Visual Basic IEEE-488 Interface Program Setup ......................................................................... 5-16

5.1.5.3 Program Operation ...................................................................................................................... 5-20

5.1.6 Troubleshooting............................................................................................................................... 5-20

5.2 SERIAL INTERFACE OVERVIEW...................................................................................................... 5-21

5.2.1 Changing Baud Rate ....................................................................................................................... 5-21

5.2.2 Physical Connection........................................................................................................................ 5-21

5.2.3 Hardware Support ........................................................................................................................... 5-22

5.2.4 Character Format ............................................................................................................................ 5-22

5.2.5 Message Strings.............................................................................................................................. 5-22

5.2.6 Message Flow Control..................................................................................................................... 5-23

5.2.7 Serial Interface Example Programs................................................................................................. 5-23

5.2.7.1 Visual Basic Serial Interface Program Setup ............................................................................... 5-24

5.2.7.2 Program Operation ...................................................................................................................... 5-27

5.2.8 Troubleshooting............................................................................................................................... 5-27

5.3 COMMAND SUMMARY...................................................................................................................... 5-28

5.3.1 Interface Commands (Alphabetical Listing) ..................................................................................... 5-29

6 OPTIONS AND ACCESSORIES............................................................................................................................ 6-1

6.0 GENERAL............................................................................................................................................. 6-1

6.1 ACCESSORIES INCLUDED................................................................................................................. 6-1

6.2 ACCESSORIES AVAILABLE................................................................................................................ 6-1

7 SERVICE ................................................................................................................................................................ 7-1

7.0 GENERAL............................................................................................................................................. 7-1

7.1 CONTACTING LAKE SHORE CRYOTRONICS ................................................................................... 7-1

7.2 RETURNING PRODUCTS TO LAKE SHORE...................................................................................... 7-1

7.3 LINE VOLTAGE SELECTION............................................................................................................... 7-2

7.4 CIRCUIT BREAKER SETTING............................................................................................................. 7-3

7.5 POWER LINE FUSE REPLACEMENT .................................................................................................7-4

7.6 ERROR MESSAGES............................................................................................................................ 7-5

7.7 ELECTROSTATIC DISCHARGE .......................................................................................................... 7-6

7.7.1 Identification of Electrostatic Discharge Sensitive Components ........................................................ 7-6

7.7.2 Handling Electrostatic Discharge Sensitive Components .................................................................. 7-7

7.8 ENCLOSURE BOTTOM REMOVAL AND REPLACEMENT................................................................. 7-7

7.8.1 Removal ............................................................................................................................................ 7-7

7.8.2 Installation ......................................................................................................................................... 7-7

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