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RESOLUÇÃO DE PROBLEMAS
MARCADORES
Avaliado
.
/ 5. Com base em
avaliações de clientes
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IEEE 488.2 Common Commands
*CLS
*ESR?
*ESE <
enable_value
>
*ESE?
*IDN?
*OPC
*OPC?
*PSC {0|1}
*PSC?
*RST
*SAV {0|1|2|3|4|5}
*RCL {0|1|2|3|4|5}
*STB?
*SRE <
enable_value
>
*SRE?
*TRG
*TST?
Chapter 5 Remote Interface Reference
SCPI Command Summar
y
200
1
2
...
193
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203
...
428
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HP 34970A
1
The Front Panel at a Glance
3
Display Annunciators
5
The Rear Panel at a Glance
6
PC for gathering and
7
SMB connections
9
RF multiplexers, you can
9
LO) switching
10
In This Book
11
Contents
12
Quick Start
16
Standby only
18
Installation Procedure
19
On-Line Help System
20
4 Replace the module cover
21
7,0(30
23
-81
23
DAC) modules
24
SCAN annunciator
25
READINGS and press
25
3$67(72
26
To Close a Channel
27
HP Part Number: 2110-0458
29
Chapter 1 Quick Start
30
To Rack Mount the Instrument
31
Front-Panel
33
Overview
33
Front-Panel Overview
34
Front-Panel Menu Reference
35
To Monitor a Single Channel
37
,17(59$/6&$1
38
6&$16
38
,
39
,9'&
39
/$%(/$6/%6
39
86($/$50
40
+,$/$5021/<
40
,°&
41
',1
42
'287
43
'287
43
5($'5(6(7
44
To Output a DC Voltage
45
+3,%
46
$''5(66
46
%$8'
47
(9(1,%,76
47
)/2:'75'65
47
1$0(67$7(
48
7(67BUDFNB
48
6725(67$7(
48
67$7(
48
&+$1*(6$9('
48
System Overview
49
Measurement Software
52
Optional
53
Plug-In Modules
54
System Cabling
55
Transducers and Sensors
56
Signal Routing and Switching
57
DMM, you create a scanner
58
LO measurements
58
Channel Open
59
Channel Closed
59
Measurement Input
60
Scanning
62
The Multifunction Module
65
Control Output
67
±12 volts with
68
SPDT) switches
69
Features and
70
Functions
70
Features and Functions
71
SCPI Language Conventions
72
Power Failure
76
HP-IB interface by
81
TTL pulse is received
82
EXT annunciator turns on as a
82
TTL pulse is
82
@103) Enable the upper limit
84
Scan Count
85
Reading Format
86
Channel Delay
87
Automatic Channel Delays
88
Single-Channel Monitoring
92
Measurement Range
97
9'&
99
P9'&
99
,2+0
99
A/D) converter
100
Custom A/D Integration Time
102
PLCs for the active channel
103
INTEGRATE T from the Advanced
103
Autozero
104
Measurement Units
105
Thermocouple Measurements
106
RTD measurement
107
RTD Measurements
109
RTD type
110
Thermistor Measurements
111
DC Input Resistance
112
AC Low Frequency Filter
113
Offset Compensation
114
20 Hz), or fast filter
116
Low Frequency Timeout
117
Mx+B Scaling
118
=0.001428571, B=
119
SCALING OFF
120
Alarm Limits
121
CHANNEL OFF
122
Upper Limit
123
Lower Limit
123
Alarm Event
123
No Alarm
123
@103,212)
124
Viewing Stored Alarm Data
125
4 Channel Number
126
Using the Alarm Output Lines
127
Falling Edge Rising Edge
128
;%,1
129
CALC:COMP:MASK
130
Digital Input Operations
132
@302) Read port 02
133
Totalizer Operations
134
@<ch_list>)]
136
@<scan_list>)
136
Digital Output Operations
137
DAC Output Operations
138
System-Related Operations
139
Error Conditions
141
Self-Test
142
Display Control
143
Real-Time System Clock
144
Internal DMM Disable
144
Firmware Revision Query
145
Relay Cycle Count
146
DMM relay or the
147
SCPI Language Version Query
148
HP-IB Address
149
Remote Interface Selection
150
Parity Selection (RS-232)
151
XON/XOFF
152
DTR/DSR, RTS/CTS, or Modem
152
XOFF” character (13H)
152
Calibration Overview
154
Calibration Message
157
Calibration Count
158
Factory Reset State
159
Instrument Preset State
160
Compensation
161
Module Reference
162
Channel Switches
163
Shunt Switches
163
Bank Switch
163
Backplane Switches
163
HP 34904A 4x8 Matrix Switch
169
Digital Input/Output
173
Totalize Input
173
Analog Output (DAC)
173
Remote Interface
177
Reference
177
Remote Interface Reference
178
SCPI Command Summary
179
@101,121)
180
@101:220)
180
@101:122)
180
,][(@<channel>)]
183
>[,(@<ch_list>)]
190
Alarm Limit Commands
191
MIN
194
MIN
194
System-Related Commands
195
ON},<code>
197
IEEE 488.2 Common Commands
198
Ω (fixed for all DCV ranges)
199
Using the MEASure? Command
200
Using the CONFigure Command
200
Using the READ? Command
202
Example: Using MEASure?
203
RTD measurements
206
+1.00000000E+01”
213
MAX selects the largest
214
3.00000000E-05”
214
PLCs) on the
216
PLC. MIN = 0.02. MAX = 200
216
+1.00000000E+00”
216
OFF) or “1” (ON)
219
+2.89753100E+01”
219
RTD type in use on
220
+1.00000000E+02”
220
@<ch_list>)
223
Scanning Overview
224
Scan Interval
225
@101:103), the ROUT:SCAN?
226
ABS” or “REL”
230
+2.61920000E+01”
231
+0.00000000E+00”
232
+5.00000000E+00”
232
MEM annunciator
233
SCPI definite length block
234
RF multiplexer modules
235
DMM is not
235
#16(@103)
236
DMM. In this
237
#214(@101,102,103)
238
BUS”, “IMM”, “EXT”, or “TIM”
238
EXTernal”
240
EXT”, “BUS”, or “IMM”
240
Mx+B Scaling Overview
242
±1E+15. The default is B=0
243
Alarm System Overview
245
DIO channels
252
Digital Input Commands
253
Totalizer Commands
254
NEG” or “POS”
255
Digital Output Commands
256
DAC Output Commands
256
Switch Control Commands
257
State Storage Commands
259
System-Related Commands
262
DMM is installed
265
FACTORY RESET from the
265
PRESET from the front-panel
265
ERROR annunciator
266
SCPI version. Returns a
266
RS-232 operation. All keys on
267
RS-232 operation. All keys
267
RS-232 operation
267
RS-232 interface and
267
RS-232 Configuration Overview
268
RS-232 Flow Control Modes
269
RS-232 Data Frame Format
270
RS-232 Troubleshooting
271
Modem Communications
272
The SCPI Status System
273
HP 34970A Status System
274
Not Used
275
IEEE-488 SRQ interrupt
277
SRQ interrupt by sending
277
The Alarm Register
282
SCAN annunciator is on)
283
Status System Commands
284
289
Calibration Commands
290
CAL: 06-01-98”
291
1.00000000E+01”
291
Service-Related Commands
292
PRESET from the
293
[(@<ch_list>)]
294
Command Separators
296
Querying Parameter Settings
297
SCPI Command Terminators
297
IEEE-488.2 Common Commands
297
SCPI Parameter Types
298
Using Device Clear
300
Error
301
Messages
301
Error Messages
302
Execution Errors
303
ASCII characters
304
INTERRUPTED
306
UNTERMINATED
306
DEADLOCKED
306
Instrument Errors
307
Ω (“2252”), 5 kΩ (“5000”)
308
DMM has been changed since
309
DMM. For more information
309
Self-Test Errors
312
Calibration Errors
313
Plug-In Module Errors
315
Application
316
Programs
316
Application Programs
317
SCPI commands
318
VISA User’s Guide
325
Tutorial
329
Cable Specifications
331
Single-Point Ground
333
Separate Grounds
333
Parallel Grounds
333
Shielded twisted pair
334
Double-shielded coaxial cable
334
DMM on the
335
RF sources
335
RFI radiated from the
335
DMM will measure the
338
LO terminal
338
Measurement Fundamentals
339
Temperature Measurements
341
DMM’s copper
343
LO input
343
DMM’s input terminals
344
Thermocouple Types
347
Chapter 8 Tutorial
347
WITHOUT SHIELD
349
WITH SHIELD
349
DC Voltage Measurements
350
DMM is completely
351
LO terminal and earth
351
LO terminal of the internal
352
DMM to 1 PLC
352
DUT) is an
353
DMM’s dc input resistance to
353
DMM have slight
354
AC Voltage Measurements
355
DMM is true RMS, its sinewave
358
RMS value of a waveform
358
x 3.14159 x 1000000
359
√
360
V
361
Current Measurements
363
DMM as shown below
364
DMM’s series inductance and
364
Resistance Measurements
365
RTD temperature transducers
366
DMM’s test
367
Ω resistance in humid
368
Strain Gage Measurements
369
GF = (∆R / R) / ε
370
DMM Sensitivity
371
DMM’s ac voltage
372
DMM input channel is
374
DMM, you could configure a
374
Four-Wire Multiplexers
376
Ω when all of the actuator
380
Ω to 50Ω are
380
Using Varistors
382
Matrix Switching
384
RF Signal Multiplexing
386
Direct to Module
387
Using provided adapter cables
387
Multifunction Module
388
Using an External Pull-Up
390
Driving External Switches
390
Totalizer Errors
392
DAC Errors
394
Continuous
395
Relay Life
396
Relay Load
396
Switching Frequency
397
Replacement Strategy
397
Specifications
398
Without Scaling, add 1
399
Chapter 9 Specifications
400
AC Accuracy Specifications
401
System Speeds
403
System Characteristics
403
Module Specifications
404
HP 34905A, 34906A
405
Software Specifications
407
≤ 150 µV
409
≤ 1.5 µV
409
Measurement Error
410
DMM on the 10 Vdc range
410
Sensitivity
411
Resolution
412
Accuracy
412
24-Hour Accuracy
413
90-Day and 1-Year Accuracy
413
Temperature Coefficients
413
Ω (for the 100 mV, 1 V
414
IndexIndex
415
° ” character, 120
417
(“B”), 121
421
setting gain (“M”), 39, 121
421
(“B”), 39, 121
421
(Mx+B), 119
422
(Mx+B scaling), 39, 119
422
, 115, 371
422
On/Standby switch, 17
422
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