Difference between revisions of "Program Examples:Camming by Virtual Master"
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| + | {{Languages|Program_Examples:Camming_by_Virtual_Master}} | ||
== Introduction == | == Introduction == | ||
| − | Slave axis is driven by a virtual(simulated) master axis | + | Slave axis is driven by a virtual(simulated) master axis. |
| + | |||
| + | [[File:CAMDEMO.PNG|Example of cam usage |600px]] | ||
== Setup == | == Setup == | ||
Both master and slave axes are set as in previous examples | Both master and slave axes are set as in previous examples | ||
| − | == Program | + | == Program Example == |
| Line 23: | Line 26: | ||
</pre> | </pre> | ||
| − | * Not linked to | + | * Not linked to any other cam-tables: |
<pre> | <pre> | ||
| Line 30: | Line 33: | ||
</pre> | </pre> | ||
| − | * | + | * Making it 10000 points |
<pre> | <pre> | ||
| Line 46: | Line 49: | ||
</pre> | </pre> | ||
| − | * Store the created file onto flash disk: | + | * Store the newly created file onto flash disk: |
<pre> | <pre> | ||
| Line 52: | Line 55: | ||
</pre> | </pre> | ||
| − | Once the table is stored on the flash it can be | + | Once the table is stored on the flash it can be reloaded as: |
<pre> | <pre> | ||
loadcamdata ct1.cam CamTable1 | loadcamdata ct1.cam CamTable1 | ||
</pre> | </pre> | ||
| − | == | + | == Creating Master-Slave Relationship == |
Axis '''a2''' is slave axis of axis '''a1'''. The source varaible for the camming is the master's external position (external encoder) '''pext'''. They are connected through '''CamTable1''' cam multiplied by a gear-ratio of 1.0. | Axis '''a2''' is slave axis of axis '''a1'''. The source varaible for the camming is the master's external position (external encoder) '''pext'''. They are connected through '''CamTable1''' cam multiplied by a gear-ratio of 1.0. | ||
| Line 68: | Line 71: | ||
a2.slave = cam | a2.slave = cam | ||
</pre> | </pre> | ||
| + | |||
| + | == Full Example == | ||
| + | |||
| + | See: [[Program Examples:Camming by Virtual Master/Full Example| '''Camming by Virtual Master/Full Example''']] | ||
Latest revision as of 01:52, 17 July 2017
| Language: | English • 中文（简体） |
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Contents
Introduction
Slave axis is driven by a virtual(simulated) master axis.
Setup
Both master and slave axes are set as in previous examples
Program Example
Creating Cam Table
Declaring a cam-table type global variable:
common shared CamTable1 as cam
Creating an empty cam table:
- This table is cyclic:
CamTable1.Cycle = -1
- Not linked to any other cam-tables:
CamTable1.Next = none
CamTable1.Prev = none
- Making it 10000 points
dim camsize as long = 10000 createcamdata camsize CamTable1
- Defining a 360 deg sine table:
for i = 1 to CamTable1.Size
CamTable1.MasterData [i] = 360*(i-1)/CamTable1.Size ' Master in degrees
CamTable1.SlaveData [i] = cam_amplitude *sin (CamTable1.MasterData [i] * pi/180)
next
- Store the newly created file onto flash disk:
storecamdata ct1.cam CamTable1
Once the table is stored on the flash it can be reloaded as:
loadcamdata ct1.cam CamTable1
Creating Master-Slave Relationship
Axis a2 is slave axis of axis a1. The source varaible for the camming is the master's external position (external encoder) pext. They are connected through CamTable1 cam multiplied by a gear-ratio of 1.0.
a2.MasterSource = a1.PExt
a2.GearRatio = 1.0
a2.CamOffset = 0
a2.FirstCam = CamTable1
a2.slave = cam