Pressure/Force Offset

Type:	Axis Parameter Register
Address:	RMC75: Primary Input: %MDn.1, where n = 12 + the axis number Secondary Input: %MDn.19, where n = 12 + the axis number RMC150: Primary Input: %MDn.1, where n = 24 + the axis number Secondary Input: %MDn.19, where n = 24 + the axis number RMC200: Primary Input: %MDn.21, where n = 384 + the axis number Secondary Input: %MDn.81, where n = 384 + the axis number
System Tag:	Pressure Input: _Axis[n ].PrsOffset Force Input: _Axis[n ].FrcOffset where n is the axis number
How to Find:	Axes Parameters Pane, Setup tab: Primary Control Setup Axes Parameters Pane, Setup tab: Secondary Control Setup
Data Type:	REAL
Units:	Pr or Fr
Range:	any
Default Value:	0

Description

The Pressure Offset or Force Offset parameter is used together with the Pressure Scale or Force Scale parameter to calculate the Actual Force or Actual Pressure from the voltage or current of the input.

The Offset is added to the scaled Pressure or Force.

On the RMC200:

For single-input force axes, the Voltage/Current Offset is first added to the volts or current, then that value is used with the Force Scale and Force Offset to calculate the Actual Force.
For load cell axes, the Millivolts/Volt Offset is first added to the Millivolts/Volt, then that value is used with the Force Scale and Force offsets to calculate the Actual Force.

Changing this Parameter

Because this parameter affects motion, the axis must be disabled or in Direct Output before writing to this parameter. The Enabled and Direct Output Status Bits indicate these states of the axis. When changing this parameter from RMCTools, the software will automatically do this for you. This may cause a halt on the axis, which is expected.