Delta Electronics AH500, Manual

Page: 61 / 547

A H 5 0 0 M o t i o n C o n t r o l M o d u l e M a n u a l
3 - 4
3.3 External Input Devices and External Output
Devices

Input device (X):
Input device numbers are decimal numbers. They start from X0.0. The definition of the
number of an input device depends on the input device. An AH500 series motion control
module has 256 input devices at most (X0.0~X15.15).

Output device (Y):
Output device numbers are decimal numbers. They start from Y0.0. The definition of the
number of an output device depends on the output device. An AH500 series motion control
module has 256 output devices at most (Y0.0~Y15.15).

Functions of input devices:
After X devices in an AH500 series motion control module are connected to an input device,
the input signals sent to the AH500 series motion control module will be read. There is no
limitation on the number of times the Form A contact/the Form B contact of an X device can
be used in a program. The state of an X device varies with the state of the input device to
which the X device is connected.

Users can turn X devices ON/OFF by means of SM304.
If SM304 is OFF, X devices can not be turned ON/OFF by means of PMSoft. If SM304 is ON,
X devices can be turned ON/OFF by means of PMSoft. However, if users use PMSoft to turn
ON/OFF X devices in an AH500 series motion control module when SM304 is ON, the
function of updating input signals will be disabled.

Functions of output devices:
A Y device sends a signal to drive the load connected to it. There is no limitation on the
number of times the Form A contact/the Form B contact of a Y device can be used in a
program. However, it is suggested that a Y device should be used once in a program. If a Y
device is used more than once in a program, the state of the Y device depends on the Y
device used last time.
X0.0
X1.0
Y0.0
Y0.0
1
2
Y0.0 is used tw ic e.
The state of Y0.0 depends on circuit
2
,
that is, the state of X1.0 determines the state
of Y0.0.