583
Specifications of Basic I/O Units Appendix A
Terminal Connections
• When wiring, pay careful attention to the polarity of the external power supply. The load may operate if the
polarity is reversed.
• Be sure to wire both terminals 21 and 22 (COM0 (+V)).
• Be sure to wire both terminals 1 and 2 (COM1 (+V)).
• Be sure to wire both terminals 3 and 4 (0 V).
• Be sure to wire both terminals 23 and 24 (0 V).
24 V DC
24 V DC
I/O word “m+1”I/O word “m”
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