< Features and System Configuration >
1-16
TI 34M6A82-01E
2nd Edition : Nov. 1, 2002-00
1.4.3 Devices
Input Relay (X)
Input relays are used for entering an ON/OFF state of an external device such as a push
button or a limit switch.
X00602
Y00701
Y00702
X00601
Input from an
extemal device
Output Relay (Y)
Output relays are used for outputting the control results of the program to external
devices such as an actuator.
X00602
Y00701
Y00702
X00601
Output to an
external device
Internal Relay (I)
Internal relays are auxiliary relays.
Unlike input/output relays, the internal relays cannot directly input signals from and
output signals to external devices.
Y00701
I0001
X00502
I0002