Rotational Pulse Command Usage | VXI VT1538A guide

Rotational Pulse Command Usage

Use SOURce:FUNCtion:RPULse (@<ref_channel>),(@<ch_list>) to link 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.

The commands:

SOURce:RPULse:POSition[:ANGLe] <degrees>,(@<ch_list>), SOURce:RPULse:WIDTh[:ANGLe] <degrees>,(@<ch_list>), and SOURce:RPULse:WIDTh:TIME <seconds>,(@<ch_list>) fix the channels’ rotational pulse position (SOUR:RPUL:POS:ANGL), or the rotational pulse width (SOUR:RPUL:WIDT:ANGL and :TIME) before the INITiate command. The remaining pulse property - the property NOT specified in one of these commands - will be controlled within the algorithm.

•<ch_list> specifies the SOUR:FUNC:RPUL channel(s) that will be set to the property specified by the command syntax.

•For pulse position, <degrees> can range from -33,554,430 to 33,554,430 degrees, with a resolution of 1 degree. The pulse is positioned at <degrees> modulo 360.

For pulse width, <degrees> can range from 0 to 360 degrees, with a resolution of 1 degree.

•<time> specifies pulse width in seconds, ranging from .00000787 (7.87 μS) to .015624 (15.624mS), with a resolution of 238.4nS

The command:

SOUR:RPULse:VARType ANGLe TIME,(@<ch_list>) specifies the type of value that will be controlled (varied) by the algorithm.

•ANGLe specifies that the algorithm will send values of angle (in degrees) to the channel(s).

TIME specifies that the algorithm will send values of time (in seconds) to the channel(s).

•<ch_list> specifies the SOUR:FUNC:RPUL channel(s) that will be controlled (varied) by the algorithm.

30 Agilent E1538A Enhanced Frequency/Totalize/PWM SCP

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VXI VT1538A user manual Rotational Pulse Command Usage

Contents

VT1538A VXI Technology, Inc Introduction Support Resources User’s and Scpi Programming Manual Page Agilent E1538A Enhanced Frequency/Totalize/PWM SCP About this Manual Introduction Identifying the Plug-on Important Setting Configuration Switches Switch Location and Example Settings Installation Connecting To The Terminal Module Recommended Signal Connections E1419A Option 11 Terminal Module Connections Input and Output Characteristics Recommended Connections and Voltage Limits VRS Mode Input Operation SCP Channels 0 & 1 only E1538A Input/Output Characteristics Programming With Scpi Commands Shows the VRS mode input characteristics Configuring I/O Direction Setting the Input Threshold Level Determining the Input Threshold Level Inppol Norm Reading Static Digital State To set channels 40 through 43 to input digital states Totalize Positive or Negative Edge State Changes Init SENSDATACVT? @44 About Period Frequency Measurements SENSDATACVT? @45 SENSDATACVT? @45 Agilent E1538A Enhanced Frequency/Totalize/PWM SCP Agilent E1538A Enhanced Frequency/Totalize/PWM SCP Sense Quadrature Position Sensfuncquad 0,@148,149 RPS Example of Rotational Velocity Sense Sense Rotational Velocity Controlling Output Polarity Output Static Digital State Variable 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 Example of variable position, preset width RST Sensfuncrvel 12,MISS,@140 Variable Position, Width Preset by Time Example of variable width by angle, preset position Example of variable width by time, preset position Fixed Position, Variable Width by Angle ALGSCALAR’ALG1’,’Width2’,.010 Stepper Motor Control Use the command Stepping mode values Sensfuncvolt @100 Full Step Mode, Full and Half Speed, 4-Channel Page RST and *TST important Scpi Command Reference Command Syntax For newer Units only Command Syntax For newer Units only Discussed Parameters INPutPOLarityINPutPOLarity? Comments INPutTHResholdLEVel Level can be set to a resolutionINPutTHResholdLEVel? OUTPutPOLarity? OUTPutPOLaritySend with VXIplug&play Function hpe14XXcmdReal64Q SENSeFREQuencyAPERture SENSeFREQuencyAPERture? Related Commands SensfreqaperSENSeFREQuencyLIMitLOWer Init SENSeFREQuencyLIMitLOWer? Related Commands INPutPOLaritySENSeFUNCtionCONDition SENSeFUNCtionFREQuency SENSeFUNCtionPERiod SENSeFUNCtionPWIDth SENSeFUNCtionQUADrature SENSeFUNCtionRVELocity RPS SENSeFUNCtionTOTalize SENSePERiodAPERture SENSePERiodAPERture? SENSePERiodLIMitUPPer Init SENSePERiodLIMitUPPer? SENSePERiodMODE SENSePERiodMODE? Related Commands SENSePERiodMODESENSePERiodNPERiods SENSePERiodRANGeUPPer SENSePERiodNPERiods?Send with VXIplug&play Function hpe14XXcmdInt32Q SENSePERiodRANGeUPPer? SENSeTOTalizeRESetMODERST Condition is Send with VXIplug&play Function hpe14XXcmd SENSeTOTalizeRESetMODE? SOURceFMSTATe SOURceFMSTATe? Send with VXIplug&play Function hpe14XXcmdInt16Q SOURceFUNCtionRPULse SOURceFUNCtionSHAPeCONDition SOURceFUNCtionSHAPePULSe SOURceFUNCtionSTEPper SOURceFUNCtionSHAPeSQUareComments Send with VXIplug&play Function hpe14XXcmd Relationship of minvel, and maxvel SOURcePULMSTATe Usage See Stepper Motor Control on SOURcePULMSTATe? SOURcePULSePERiod SOURcePULSePERiod? SOURcePULSeWIDTh SOURceRPULsePOSitionANGLe SOURcePULSeWIDTh?33,554,430 to 33,554,430 SOURRPULseVARType SOURceRPULsePOSitionANGLe?Usage SOURRPULseVARType? SOURceRPULseWIDThANGLe SOURceRPULseWIDThTIME SOURceRPULseWIDThANGLe?00000787 to SOURceRPULseWIDThTIME? Specifications General Specifications Frequency Measurement Pulse Width Measure Rotational Pulse Source