Keithley - 1973 - Interface
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Keithley 1973
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Equipment:
1973
Date:
1991
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Information
The Model 1973 is an IEEE-488 interface for the Model 197 Autoranging Microvolt DMM. This interface adds extra versatility to the Model 197 by allowing the transmission of data and commands over the IEEE-488 bus. The interface provides all the necessary logic to interface the Model 197 to the bus using standard IEEE-488-1973 protocol.
The Model 1972 is an IEEE-488 interface that is very similar to the Model 1973. In fact, the only difference between the two interfaces is that the Model 1972 includes an Analog Output and the Model 1973 does not.
Since the only difference between the two interface is the analog output, the Model 1973 is referred to throughout the manual. Section 5 and 6 contain information concerning the analog output of the Model 1972. All the rest of the information pertaining the Model 1973 also relates the Model 1972. The analog output specifications precede the Table of Contents.
The Model 1973/1972 IEEE-488 Instruction Manual covers the following IEEE 488 interface options:
• Model 1973 IEEE-488 Interface (for the Model 197)
• Model 1973A IEEE-488 Interface (for the Model 197A)
• Model 1972 IEEE-488 Interface (for the Model 197)
• Model 1972A IEEE-488 Interface (for the Model 197A)
1 Manual
Service and user manual
Manual type:
Service and user manual
Pages:
62
Size:
5.1 MB
Language:
english
Revision:
C
Manual-ID:
1973-901-01
Date:
January 1991
Quality:
Scanned document, all readable.
Upload date:
July 23, 2020
MD5:
cf2cf974-2001-72e9-a708-39f10a71edc9
Downloads:
675
Information
SECTION 1-GENERAL INFORMATION
1.1 Introduction...........................................
1.2 Interface Features.......................................
1.3 Warranty Information..................................
1.4 Manual Addenda.......................................
1.5 Safety Symbols and Terms...............................
1.6 Using the Instruction Manual.............................
1.7 Specifications..........................................
1.8 Unpacking and Inspection...............................
SECTION 2—AN OVERVIEW OF THE IEEE-488 BUS
2.1 Introduction..................................................................................................................................2-1
2.2 Bus Description............................................................................................................................2-1
2.3 IEEE-488 Bus Lines......................................................................................................................2-1
2.3.1 Bus Management Lines............................................................................................................2-1
2.3.2 Handshake Lines.....................................................................................2-2
2.3.3 Data Lines ................................................................................................................................2-3
2.4 Bus Commands............................................................................................................................2-3
2.4.1 Uniline Commands..................................................................................................................2-3
2.4.2 Universal Commands..............................................................................................................2-3
2.4.3 Addressed Commands............................................................................................................2-4
2.4.4 Unaddressed Commands........................................................................................................2-4
2.4.5 Device-Dependent Commands ..............................................................................................2-4
2.5 Command Codes..........................................................................................................................2-4
2.6 Command Sequences..................................................................................................................2-4
2.6.1 Addressed Command Sequence..............................................................................................2-6
2.6.2 Universal Command Sequence................................................................................................2-6
2.6.3 Device-Dependent Command Sequence................................................................................2-6
SECTION 3-SYSTEM CONFIGURATION
3.1 Introduction..................................................................................................................................3-1
3.2 Hardware Consideration............................................................................................................3-1
3.2.1 Typical Systems...............................................................3-1
3.2.2 Bus Connections......................................................................................................................3-1
3.2.3 Primary Address Selection......................................................................................................3-3
3.3 Software Considerations..............................................................................................................3-4
3.3.1 Controller Interface Routines..................................................................................................3-4
3.3.2 HP-85 BASIC Statements........................................................................................................3-4
3.3.3 Interface Functions Codes............................. ............................................3-5
3.3.4 Interface Commands................................................................................................................3-6
4.1 Introduction..................................................................................................................................4-1
4.2 General Bus Commands..............................................................................................................4-1
4.2.1 REN (Remote Enable)..............................................................................................................4-1
4.2.2 IFC (Interface Clear)................................................................................................................4-2
4.2.3 GTL (Go To Local)..................................................................................................................4-2
4.2.4 DCL (Device Clear).................................................................................4-2
4.2.5 SDC (Selective Device Clear)..................................................................................................4-2
4.2.6 Serial Polling (SPE, SPD)........................................................................................................4-3
4.3 Device-dependent Command Programming..............................................................................4-3
4.3.1 Execute (X)................................................................................................................................4-4
4.3.2 dB (D)........................................................................................................................................4-4
4.3.3 Range (R)..................................................................................................................................4-4
4.3.4 Relative (Z) ..............................................................................................................................4-6
4.3.5 Triggering (T)............................................................................................................................4-6
4.3.6 EOI (K)......................................................................................................................................4-6
4.3.7 Status Word (U)........................................................................................................................4-7
4.3.8 SRQ Mode (M) and Status Byte Format................................................................................4-7
4.3.9 Data Format............................................................................................................................4-10
4.3.10 Prefix (G)................................................................................................................................4-10
4.3.11 Programmable Terminator (Y)..............................................................................................4-11
4.3.12 Buffer (B)................................................................................................................................4-11
4.3.13 Digital Calibrator (V) and Storage (L)..................................................................................4-12
4.4 Talk Only Operation ...........................................................................................................4-12
SECTION 5-ANALOG OUTPUT (Model 1972 only)
5.1 Introduction..................................................................................................................................5-1
5.2 Using Analog Output..................................................................................................................5-1
5.3 Output Resistance........................................................................................................................5-3
5.4 X1000 Mode Resolution and Accuracy......................................................................................5-3
SECTION 6-THEORY OF OPERATION
6.1 Introduction..................................................................................................................................6-1
6.2 Circuit Description......................................................................................................................6-1
6.2.1 Power Supply ..................................................................................6-1
6.2.2 Digital Circuitry ......................................................................................................................6-2
6.2.3 Analog Output (Model 1972 only) ........................................................................................6-2
SECTION 7-MAINTENANCE
7.1 Introduction..................................................................................................................................7-1
7.2 Installation....................................................................................................................................7-1
7.3 Calibration (Model 1972 only)....................................................................................................7-1
7.3.1 Warm Up..................................................................................................................................7-1
7.3.2 Recommended Calibration Equipment..................................................................................7-3
7.3.3 Environmental Conditions......................................................................................................7-3
7.3.4 Calibration................................................................................................................................7-3
7.4 Special Handling of Static Sensitive Devices..............................................................................7-3
7.5 Troubleshooting..........................................................................................................................7-3
8.1 Introduction..................................................................................................................................8-1
8.2 Replaceable Parts..........................................................................................................................8-1
8.3 Ordering Information.............................................................................8-1
8.4 Factory Service ............................................................................................................................8-1
8.5 Schematic Diagrams and Component Location Drawings......................................................8-1