Delta RMC101 User Manual
Page 270
RMC100 and RMCWin User Manual
5-20
axis and profile select bits must be updated simultaneously. Because this will never happen
exactly simultaneously, a filter is necessary. Use this field to set the number of milliseconds that
all eighteen inputs of the Digital I/O, plus CPU input 1 must hold their values before the new
values are considered a new command.
Allow Open Loop Select
If four or fewer axes are installed on the motion controller, then the user can use a bit to select
whether an axis moves in open or closed loop mode. If this check box is selected, then CPU input
1 will be reserved for this purpose. If this box is not checked, then all moves will be closed loop
and this bit will be used to select the profile and/or axis. With more than four axes, this option is
not available because the CPU input 1 bit must be used to select the upper axes.
If this feature is disabled or CPU input 1 is low, the Digital I/O inputs 0 through 15 are used as a
16-bit position input. This is the normal operation.
If this feature is enabled and CPU input 1 is high, the motion controller will act in Open Loop
mode. Digital I/O inputs 0 through 15 specify the output value over a -10.000 to +10.000 volt
range using signed binary notation. For position and zero values, convert the desired output in
millivolts to binary, while for negative values, subtract the desired output in millivolts from 65536
and convert the result to binary. For example, an input of 0010011100010000b will make an
output of +10.000 volts, while an input of 1101100011110000b will make an output of -10.000
volts. You can use this mode to jog an axis.
Bit Use Area
This read-only area displays the bits used for the various options. It is originally set based on the
number of axes available and is modified as the Allow Open Loop Select check box is checked
and unchecked. Refer to the chart below for exact bit assignments:
Note:
If CPU input 1 has been reserved for open loop select, then profiles 4 through 7 will be in
Open Loop mode. Refer to the Open Loop command for details.
Axis and Profile Select Bits for 2-axis RMCs:
CPU
Input
1
DI/O
Input
17
DI/O
Input
16
Axis
Profile
0
0
0
0
0
0
0
1
1
1
0
1
0
0
2
0
1
1
1
3
1
0
0
0
4
1
0
1
1
5
1
1
0
0
6
1
1
1
1
7