10 FUNCTIONS
10.2 Safety Input Function
161
10
Double input combination
The input module with diagnostic functions evaluates an input signal's logic and reflects the result in the relevant safety input
(SA\X). When double inputs are made with different signals, a double input discrepancy detection state arises. The following
table shows the correspondences between double input signal statuses and safety inputs (SA\X).
■
Status of safety input SA\X0, with double wiring applied to X00 in the RX40NC6B (Main) and
X00 in the RX40NC6B (Sub)
Setting procedure
With "Wiring input selection", set the terminal to perform double wiring on.
[Navigation window]
[Parameter]
[Module Information]
Model
[Module Parameter]
[Basic setting]
"Wiring
input selection"
• When "Not used" is selected for "Wiring input selection", input data is always OFF.
• For an unused input terminal, set "Not used" for "Wiring input selection".
Input terminal status
Safety input (SA\X
)
Double input evaluation result
X
in the RX40NC6B (Main) X
in the RX40NC6B (Sub)
OFF
OFF
OFF
OFF (Normal)
OFF
ON
OFF
OFF (Mismatch)
ON
OFF
OFF
OFF (Mismatch)
ON
ON
ON
ON (Normal)
(1) Even when X00 in the RX40NC6B (Main) becomes ON, because X00 in the RX40NC6B (Sub) is OFF, ON is not reflected in SA\X0.
(2) When double wiring is ON (X00 in the RX40NC6B (Main) and X00 in the RX40NC6B (Sub) are both ON), SA\X0 becomes ON.
(1)
(2)
SA\X0
Double input discrepancy
detection state
Input terminal state of the
RX40NC6B (Main): X00
Input terminal state of the
RX40NC6B (Sub): X00
Summary of Contents for MELSEC iQ-RX40NC6B
Page 1: ...MELSEC iQ R I O Module With Diagnostic Functions User s Manual Application RX40NC6B RY40PT5B ...
Page 2: ......
Page 125: ...4 OVERVIEW 123 4 MEMO ...
Page 191: ...12 MAINTENANCE AND INSPECTION 189 12 MEMO ...
Page 227: ......
