Mitsubishi Electric Melsec QJ71LP21 - Page 105

3 - 51 3 - 51
MELSEC-Q
3 SPECIFICATIONS
2) Direct access to the receiving station
a) When close to step 0
The link refresh and the direct access occur at almost the same
time.
(Link refresh)
Sequence scan
END
Link scan
0END0END
B0 B0
(Direct access)
Sequence scan
END
Link scan
0END0END
J1\B0 J1\B0
b) When close to END
The direct access is faster by a maximum of one scan of a
sequence program when compared with the link refresh.
(Link refresh)
Sequence scan
END
Link scan
0END0END
B0 B0
(Direct access)
Sequence scan
END
Link scan
0END0END
J1\B0