GSK 218M, Руководство по подключению и программированию PLC

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GSK218M CNC System Connection and PLC Manual
51
Control conditions:
Shift direction specification (DIR)
DIR=0: Left shift
DIR=1: Right shift
Condition specification (CONT)
CONT=0: do not cycle shift
CONT=1: cycle shift
Reset
（
RST
）
The shifted out data(W=1) is reset (W=0).
RST=0: W is not reset.
RST=1: W is reset (W=0).
Actuation signal (ACT)
ACT=0: do not execute SFT instruction.
ACT=1:shifting processing is done when ACT=1. For shifting one bit only, execute an
instructin when ACT=1, and then, set ACT to 0.
Parameters:
S1
： sets shift data addresses. These designated addresses require a continuous 1-byte
memory for shift data.
Length
：
a 4-bit number, and its definition is as follows:
O O O O
L
：
range: 0~8.
A
：
bit parameter. A=0: When ACT=1 is shifting, the shift period is one bit.
A=1: ACT is taken as pulse signal, it is 1 from 0, shift one
bit.
Output:
W
：
W=0: “1” was not shifted out because of the shift operation.
W=1: “1” was shifted out because of the shift operation.
5.18 DIFU
（
rising edge check
）
Function:
L: bit shifts every bit
A:shift status