INTERFACE MANUAL
Designation STEP_RST (Step reset)
Input terminal CN5–14 pin
Exclusive signal
name used in the
controller
251
Signal logic
Signal judgment
Signal terminal
ON OFF
Open
O
Short-circuit O
Function Used to reset a currently stopped program to step 1. The
value of each variable used in the program remains
unchanged.
This signal can be used only in the EXT. SIGNAL mode.
Signal timing
AUTORUN (O)
STEP_RST (I)
ACK (O)
Cautions 1. The STEP_RST signal should not be input together with
the STROBE, PRG_RST, CYC_RST or DO_RST signal.
Because the ACK signal is used in common, only the first
signal which is input becomes valid and all other signals
become invalid.
2. This signal cannot be used while AUTORUN (automatic
operation mode ON) is set ON.
STE 71367
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