Selecting the Data to Plot

All plots read from the RMC contain the following information:

In addition, ACTUAL SPEED and TARGET SPEED are calculated from the ACTUAL POSITION and TARGET POSITION values and stored in the plot.

The RMC can provide two more pieces of data; the user chooses what data is collected using the Plot Options dialog box. To use this dialog box:

If you are going to change the extra graph information on only one axis, select a field in the axis.
On the Tools menu, click Plot options.
Click the option button of the data you want to include. The options are described below.
If you wish to change the extra graph information for all axes, select the Set for all axes check box.
Click OK.
Trigger a new graph to be stored by the module. This requires making a new move because the new information is not collected until the module begins a new graph.

The extra pieces of information that can be included are:

Extra Position Precision - No additional data is displayed in the graph when this data is selected. Instead more precise positions are read from the module, which results in the better speed calculations. Use this option to get better approximations of the speed.
Command/Command Value - The last command and command value received on the axis are stored for every plot entry. This is useful to verify the arrival and effects of new commands given during a move.

Note: Commands given from RMCWin are not included in the plot data.

Current Event/Link Value - The current event STEP and LINK VALUE are stored for every plot entry. This is useful for debugging event sequences.
Raw Transducer Counts - The raw counts read from the transducer are stored for every plot entry. Refer to Raw Transducer Counts for details.
Internal Speeds - This option is generally only used under the direction of Delta technical support. A plot taken with this option will only have the basic information displayed above (Actual and Target Positions, Drive, and Status word), but instead of computing the Actual and Target Speeds from the differences in positions, it reads the RMCs Actual and Target speed values used internally. This can be useful in tracking down problems with gearing and feed forwards.

Note: The Internal Speeds option requires RMC100 CPU firmware dated 20010205 or newer.

Integral Drive - This option plots the Integral Drive value in millivolts along-side the standard plot values. This is useful for determining its effect on your control system. The current rate of change in the integrator is also displayed in the Plot Detail window and Raw Plot Data.

Note: The Integral Drive option requires RMC100 CPU firmware dated 20020419 or newer.