160
10 FUNCTIONS
10.2 Safety Input Function
10.2
Safety Input Function
Input double wiring function
This function turns input wiring into double wiring. With double wiring, input signals on each side are verified so that when one
side fails, safety inputs can be turned off.
Double wiring combination
For double wiring, perform wiring on a terminal with the same terminal number in both the RX40NC6B (Main) and the
RX40NC6B (Sub).
Ex.
For example, to perform double wiring on the terminal with terminal number X00 in the RX40NC6B (Main), the terminal with
terminal number X00 in the RX40NC6B (Sub) is used.
Diagnostic functions to detect input errors
An input error can be detected with the following diagnostic functions.
Diagnostic function
Diagnostics
Reference
Double input discrepancy detection
function
Detects the discrepancy state of double input signals.
Page 168 Double input discrepancy
detection function
Input dark test function
Outputs test pulses to turn off the inputs that are on and diagnoses contacts
including external devices for failure.
Page 175 Input dark test function
NC
NC
X0
X0
T0
T0
RX40NC6B(Main)
RX40NC6B(Sub)
Содержание MELSEC iQ-RX40NC6B
Страница 1: ...MELSEC iQ R I O Module With Diagnostic Functions User s Manual Application RX40NC6B RY40PT5B ...
Страница 2: ......
Страница 125: ...4 OVERVIEW 123 4 MEMO ...
Страница 191: ...12 MAINTENANCE AND INSPECTION 189 12 MEMO ...
Страница 227: ......