Mitsubishi Electric AJ71C24-S6 User Manual page 261

10. COMMUNICATIONS IN THE BIDIRECTIONAL MODE
MELSEC-A
10.4
Bidirectional Control Procedure Basics
D
(1) Transmitting data from an AJ71 C24 to a computer
Computer
AJ71 C24
Area A
(a) Area A: Data send from an AJ71C24 to a computer
(b)
Area B: Data send from a computer to an AJ71 C24
(c) Write a program so that data is transmitted from left to right.
(Example: For area A, data is transmitted from ENQ to right)
(2) Transmitting data from a computer to an AJ71 C24
Computer
Q
(a) Area A: Data send from a computer to an AJ71C24
(b) Area B: Data send from an AJ71 C24 to a computer
(c) Write a program so that the data is transmitted from left to right
(Example: For area A, data is transmitted from ENQ to right)