VXI VT1538A user manual SOURceFUNCtionRPULse

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SOURce:FUNCtion:RPULse

SOURce:FUNCtion:RPULse (@<ref_channel>),(@<ch_list>) links channels in <ch_list> to the rotational pulse function. The channel in <ref_channel> will be linked to the SENS:FUNC:RVEL function to provide the rotational reference information to SOUR:FUNC:RPUL.

Parameters


	Parameter	Parameter	Range of	Default
	Name	Type	Values	Units

	ref_channel	string	100, 108, 116, 124, 132, 140, 148, 156	none

	ch_list	string	100 - 163	none

Comments • <ref_channel> must be a single channel and must be the first channel on the SCP. The channel specified in <ref_channel> must be linked to the SENS:FUNC:RVEL function before the INIT command is received. See page 22 for more on RVEL. The related error messages are:

3111, "multiple channels are specified in reference channel list." 3112, "Channel specified is invalid for RPULse reference channel." 3119, "RPULse reference channel must be defined as RVELocity type."

•Channels in <ch_list> must be higher numbered and on the same SCP as the channel specified in <ref_channel>. The related error messages are:

3113, "Channel specified is not in same SCP as reference channel." 3114, "First channel in SCP can not be used in RPULse output channel list."

3118, "Incomplete setup information for RPULse function. "

Notes 1. There must be one (and only one) channel on the same SCP that is set to SENSe:FUNCtion:RVELocity. This sense channel provides the rotational velocity and index reference that the SCP uses to position the output pulses at a desired rotational angle. This is the <ref_channel> seen above.

2.The lower velocity limit for RPULse is 108 teeth per Second (TPS) for extra-tooth wheels, and 384TPS for missing-tooth wheels. For example, a 60 tooth wheel would need to rotate at a minimum of 108RPM if it had an extra tooth, but at 384RPM minimum with a missing tooth.

3.Long duration pulses that begin and end within a wheel’s missing tooth area can exhibit significant jitter. Use an extra tooth wheel for

Agilent E1538A Enhanced Frequency/Totalize/PWM SCP 65

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Contents VT1538A VXI Technology, Inc Introduction Support Resources User’s and Scpi Programming Manual Page About this Manual Agilent E1538A Enhanced Frequency/Totalize/PWM SCPIntroduction Identifying the Plug-on Important Switch Location and Example Settings Setting Configuration SwitchesConnecting To The Terminal Module InstallationE1419A Option 11 Terminal Module Connections Recommended Signal ConnectionsRecommended Connections and Voltage Limits Input and Output CharacteristicsE1538A Input/Output Characteristics VRS Mode Input Operation SCP Channels 0 & 1 onlyShows the VRS mode input characteristics Programming With Scpi CommandsSetting the Input Threshold Level Configuring I/O DirectionInppol Norm Determining the Input Threshold LevelTo set channels 40 through 43 to input digital states Reading Static Digital StateInit SENSDATACVT? @44 Totalize Positive or Negative Edge State ChangesAbout Period Frequency Measurements SENSDATACVT? @45 SENSDATACVT? @45 Agilent E1538A Enhanced Frequency/Totalize/PWM SCP Agilent E1538A Enhanced Frequency/Totalize/PWM SCP Sensfuncquad 0,@148,149 Sense Quadrature PositionRPS Sense Rotational Velocity Example of Rotational Velocity SenseOutput Static Digital State Controlling Output PolarityVariable Width Pulse Per Trigger Variable Width Pulse Train PWM Variable Frequency Fixed Width Pulse Train FM Variable Frequency Square-Wave Pulse Train Rotationally Positioned Pulse Output Rotational Pulse Command Usage Algupdate Init RST Sensfuncrvel 12,MISS,@140 Example of variable position, preset widthVariable Position, Width Preset by Time Example of variable width by angle, preset position Fixed Position, Variable Width by Angle Example of variable width by time, preset positionALGSCALAR’ALG1’,’Width2’,.010 Stepping mode values Stepper Motor Control Use the commandSensfuncvolt @100 Full Step Mode, Full and Half Speed, 4-Channel Page RST and *TST important Command Syntax For newer Units only Scpi Command ReferenceCommand Syntax For newer Units only Discussed INPutPOLarity? INPutPOLarityParameters CommentsLevel can be set to a resolution INPutTHResholdLEVelINPutTHResholdLEVel? OUTPutPOLarity OUTPutPOLarity?Send with VXIplug&play Function hpe14XXcmdReal64Q SENSeFREQuencyAPERture Related Commands Sensfreqaper SENSeFREQuencyAPERture?SENSeFREQuencyLIMitLOWer Init Related Commands INPutPOLarity SENSeFREQuencyLIMitLOWer?SENSeFUNCtionCONDition SENSeFUNCtionPERiod SENSeFUNCtionFREQuencySENSeFUNCtionQUADrature SENSeFUNCtionPWIDthSENSeFUNCtionRVELocity RPS SENSeFUNCtionTOTalize SENSePERiodAPERture SENSePERiodLIMitUPPer SENSePERiodAPERture?Init SENSePERiodMODE SENSePERiodLIMitUPPer?Related Commands SENSePERiodMODE SENSePERiodMODE?SENSePERiodNPERiods SENSePERiodNPERiods? SENSePERiodRANGeUPPerSend with VXIplug&play Function hpe14XXcmdInt32Q SENSeTOTalizeRESetMODE SENSePERiodRANGeUPPer?RST Condition is Send with VXIplug&play Function hpe14XXcmd SOURceFMSTATe SENSeTOTalizeRESetMODE?Send with VXIplug&play Function hpe14XXcmdInt16Q SOURceFMSTATe?SOURceFUNCtionRPULse SOURceFUNCtionSHAPePULSe SOURceFUNCtionSHAPeCONDitionSOURceFUNCtionSHAPeSQUare SOURceFUNCtionSTEPperComments Send with VXIplug&play Function hpe14XXcmd Relationship of minvel, and maxvel Usage See Stepper Motor Control on SOURcePULMSTATeSOURcePULSePERiod SOURcePULMSTATe?SOURcePULSeWIDTh SOURcePULSePERiod?SOURcePULSeWIDTh? SOURceRPULsePOSitionANGLe33,554,430 to 33,554,430 SOURceRPULsePOSitionANGLe? SOURRPULseVARTypeUsage SOURceRPULseWIDThANGLe SOURRPULseVARType?SOURceRPULseWIDThANGLe? SOURceRPULseWIDThTIME00000787 to SOURceRPULseWIDThTIME? General Specifications SpecificationsFrequency Measurement Pulse Width Measure Rotational Pulse Source