Measurement-computing DAC488 v.1 Manuale Utente Pagina 88
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82 DAC488 Commands DAC488 User’s Manual
System Status (U0) Return Codes
A#
Autorange
A0
Autorange disabled for selected DAC port.
A1
Autorange enabled for selected DAC port.
C#
Control Mode
C0
Direct Mode, trigger on Value Output (
Vval
) command.
C1
Indirect Mode, trigger on
GET
, External trigger or
@
.
C2
Stepped Mode, trigger on
GET
, External trigger or
@
.
C3
Waveform Mode, trigger on
GET
, External trigger or
@
.
D###
Digital Output
###
A number between 0 and 255 showing the programmed state of the Digital Output port.
E#
Error Query
E0
No error.
E1
Unrecognized command.
E2
Invalid command parameter.
E3
Command conflict (e.g. attempting to select a range when in autorange).
E4
Calibration write protected.
E5
Non-Volatile RAM Error.
Note:
Upon reading the error status the error condition is cleared.
F####,xxxx
Buffer Definition
####
Starting location of the defined buffer (0 to 8191).
xxxx
Size of the defined buffer (0 to 8191).
G##
GET Trigger Mask
G0
Clears all bits in the GET Trigger Mask.
G1
Enable DAC port 1 to trigger on
GET
.
G2
Enable DAC port 2 to trigger on
GET
.
G4
Enable DAC port 3 to trigger on
GET
. (DAC488/4 only)
G8
Enable DAC port 4 to trigger on
GET
. (DAC488/4 only)
Note:
The status indication reflects the sum of all received GET Trigger Mask commands.
I#####
Interval
#####
Time interval
val
in milliseconds (
val
= 1 to 65,535 millisec).
Note:
The default Interval is
val
= 1000 (or 1 second).
K#
End-Or-Identify Control
K0 EOI
asserted on last bus terminator.
K1 EOI
disabled.
L####
Buffer Location
####
The present buffer pointer location (0 to 8191).
M###
Service Request Mask
M0 SRQ
is disabled.
M1 SRQ
on port 1 trigger ready.
M2 SRQ
on port 2 trigger ready.
M4 SRQ
on port 3 trigger ready. (DAC488/4 only)
M8 SRQ
on port 4 trigger ready. (DAC488/4 only)
M16 SRQ
on trigger overrun.
M32 SRQ
on error.
M128 SRQ
on external input transition.
Note:
The status indication reflects the sum of all received Service Request Mask commands.
- User's Manual 1
- Introduction to this Manual 3
- Table of Contents 4
- 7 - DAC488 Commands 5
- 8 - Troubleshooting 5
- A - Appendix 5
- DAC488 Overview 1 7
- Accessories 8
- Specifications 8
- DAC488 Setup 2 11
- Hardware Setup 12
- Default Settings 13
- Mode Selection 13
- Analog Output Ports 13
- Digital I/O Port 14
- DAC488 Power & Assembly 3 19
- Rack Mount 23
- Bench Top 23
- Power-Up Activation 24
- CAUTIONCAUTION 24
- Programming Examples 25
- Performance Verification 26
- DAC488 Operation 4 29
- Port Triggering 30
- Internal Buffer 32
- Control Modes 34
- Waveform Control Mode 35
- Multiple Port Synchronization 36
- User-Defined System Defaults 39
- IEEE 488 Bus Support 39
- Bus Commands 40
- Bus Addresses 40
- Bus Terminators 40
- IEEE 488 Background 5 41
- Bus Lines & Bus Commands 42
- Handshake Lines 43
- Data Transfer Lines 43
- Bus Command Groups 44
- More On Service Requests 45
- DAC488 Calibration 6 47
- Manual Calibration Procedure 48
- BASIC Calibration Program 49
- DAC488 Commands 7 57
- Command Groups 59
- Command Summary 60
- Command Reference 63
- @ - Trigger On Command 64
- A - Autorange 65
- B - Buffer Data 66
- C - Control Mode 67
- D - Digital Output 69
- E? - Query Error Status 70
- F - Buffer Definition 72
- G - GET Trigger Mask 73
- H - Offset Calibration 74
- I - Interval 75
- J - Gain Calibration 76
- K - End-Or-Identify Control 77
- L - Buffer Location 78
- M - Service Request Mask 79
- N - Number of Cycles 80
- O - Output Format 81
- P - Port Select 82
- Q - External Trigger Mask 83
- R - Range Select 84
- S - System Defaults 85
- T - Command Trigger Mask 86
- U - User Status 87
- V - Value Output 90
- W - Test 91
- X - Execute 92
- Y - Bus Terminator 93
- ? - Query 94
- Serial Poll Status Byte 95
- Troubleshooting 8 97
- Query Error Status 98
- Appendix A 99
- IEEE 488 Bus Commands 100
- ASCII Codes 101
- ASCII Code Details 103
- Decimal Values 32 to 63 – LAG 105
- Decimal Values 64 to 95 – TAG 106
- Abbreviations 112
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