User Manual

Motion control is easy
Easy Book
204 Manual, 03/2014, A5E02486774-AF
The four pulse generators have default I/O assignments; however, they can be configured to
any digital output on the CPU or SB. Pulse generators on the CPU cannot be assigned to
SMs or to distributed I/O.
Note
Pulse-train outputs cannot be used by other instructions in the user program
When you configure the outputs of the CPU or signal board as pulse generators (for use with
the PWM or motion control instructions), the corresponding output addresses no longer
control the outputs. If your user program
writes a value to an output used as a pulse
generator, the CPU does not write that value to the physical output.
Table 10- 1 Maximum number of controllable drives
Type of CPU
Onboard I/O;
No SB installed
With an SB
(2 x DC outputs)
With an SB
(4 x DC outputs)
With
direction
Without
direction
With
direction
Without
direction
With
direction
Without
direction
CPU 1211C
DC/DC/DC
2
4
3
4
4
4
AC/DC/RLY
0
0
1
2
2
4
DC/DC/RLY
0
0
1
2
2
4
CPU 1212C
DC/DC/DC
3
4
3
4
4
4
AC/DC/RLY
0
0
1
2
2
4
DC/DC/RLY
0
0
1
2
2
4
CPU 1214C DC/DC/DC 4 4 4 4 4 4
AC/DC/RLY
0
0
1
2
2
4
DC/DC/RLY
0
0
1
2
2
4
CPU 1215C
DC/DC/DC
4
4
4
4
4
4
AC/DC/RLY
0
0
1
2
2
4
DC/DC/RLY
0
0
1
2
2
4
CPU 1217C DC/DC/DC 4 4 4 4 4 4
Note
The maximum number of pulse generators is four.
Whether you use onboard I/O, SB I/O, or a combination of both, you can have a maximum
number of four pulse generators.