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Keysight P9241/42/43A Oscilloscopes SCPI Programmer's Guide
35
Status Reporting
Example: Waiting for IO Operation Complete
# -*- coding: utf-8 -*-
# ********************************************************************
# This script using the Python language (http://www.python.org/) and
# the PyVISA package (http://pyvisa.readthedocs.org/) shows how to
# wait for IO operation completion in a Keysight InfiniiVision
# oscilloscope.
# ********************************************************************
# Import modules
# --------------------------------------------------------------------
import sys
import visa
import time
# Initialization constants
# --------------------------------------------------------------------
# Get VISA address from Keysight IO Libraries Connection Expert
VISA_ADDRESS = \
"TCPIP0::a-mx4154a-60014.cos.is.keysight.com::inst0::INSTR"
GLOBAL_TOUT =
20000
# IO timeout in milliseconds
# ====================================================================
# Check for IO Operation Complete using :OPER? query.
# --------------------------------------------------------------------
# This method reads the Operation Status Register's IOC bit
# (bit 13) using the :OPER? query.
#
# The Operation Status Event Register bits are cleared (0) when the
# register is read.
#
# All status bits are cleared by a *CLS command.
# ====================================================================
def wait_io_operation():
# ----------------------------------------------------------------
now = time.clock()
# Define bit masks for the Operation Status Event Register
IOC_BIT = 13
# 1 leftshift 13 = 8192 (bit 13 in the Operation Status Event
# Register)
IOC_MASK = 1 << IOC_BIT
# Define IO complete criteria.
NOTE
The IOC (IO Operation Complete) and IOF (IO Operation Failed) bits in the Operation Status
Event Register identify when :WMEMory<r>:SAVE and other :SAVE and :RECall commands are
completely done. To determine when a IO operation is complete, you should use these bits
instead of the OPC (Operation Complete) bit in the Standard Event Status Register or the
*OPC? query.
Содержание P9241
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Страница 6: ...6 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide...
Страница 36: ...36 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 1 What s New...
Страница 41: ...Setting Up 2 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 41...
Страница 44: ...44 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 2 Setting Up...
Страница 222: ...222 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 7 Root Commands...
Страница 244: ...244 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 8 ACQuire Commands...
Страница 256: ...256 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 9 CALibrate Commands...
Страница 278: ...278 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 10 CHANnel n Commands...
Страница 328: ...328 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 15 EXTernal Trigger Commands...
Страница 386: ...386 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 17 FUNCtion m Commands...
Страница 390: ...390 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 18 HCOPY Commands...
Страница 416: ...416 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 20 MARKer Commands...
Страница 498: ...498 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 21 MEASure Commands...
Страница 532: ...532 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 22 MTESt Commands...
Страница 572: ...572 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 24 SAVE Commands...
Страница 596: ...596 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 25 SBUS n Commands SBUS n A429 SOURce on page 588...
Страница 900: ...900 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 28 TIMebase Commands...
Страница 1080: ...1080 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 31 WGEN w Commands...
Страница 1142: ...1142 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 34 Error Messages...
Страница 1204: ...1204 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide 37 More About Oscilloscope Commands...
Страница 1344: ...1344 Keysight P9241 42 43A Oscilloscopes SCPI Programmer s Guide Index...