Mitsubishi Electric MELSEC QS SERIES User Manual page 32

3
SPECIFICATIONS
(3) How to use I/O signals
Setting of "Double input/single input
selection" parameter
Double input
*2
Single input
*1: For the program, both RXn0 and RXn1 can be used.
*2: Check if this function is available in the module technical version used. (
Setting of "Method of wiring of
output" parameter
Reserved
Double wiring (Source+Sink)
Double wiring (Source+Source)
3
- 10 3.3 I/O Signals
The method of using I/O signals is described below.
(a) Relationships between I/O signals
Table3.8 and 3.9 show the relationship between I/O signals.
Table3.8 RX assignment
Input
X00 X01
OFF OFF
OFF ON
ON OFF
ON ON
OFF OFF
OFF ON
ON OFF
ON ON
Table3.9 RY assignment
Remote output
RYn0 RYn1
OFF —
ON —
OFF —
ON —
OFF
OFF
ON
OFF
ON
ON
Remote input
RXn0 RXn1
OFF OFF
• 1 signal for 2 inputs.
OFF OFF
• When 2 inputs are mismatched, both RXn0
OFF OFF
and RXn1 are turned OFF.
ON ON
OFF OFF
• X00 and X01 are independent signals.
OFF ON
• Remote inputs are sent as RX00 and RX01
ON OFF
independently.
ON ON
Appendix 2)
Output
Y0+ Y0- Y1+
OFF OFF —
OFF OFF —
OFF OFF —
ON ON —
OFF — OFF
OFF — OFF
OFF — OFF
ON — ON
Remarks
*1
Remarks
Y1-
— Output (Y0+) and (Y0-) remain
— OFF even if RYn0 is turned ON.
— • 2 outpus for 1 signal.
• Both source side output (Y0+)
and sink side output (Y0-)
—
turn ON when RYn0 is turned
ON.
— • 2 outpus for 2 signals.
— • Source output (Y0+) and
—
source output (Y1+)
simultaneously turn ON when
—
both RYn0 and RYn1 are
turned ON.