Mitsubishi Electric MELSEC-A Manual Book page 7

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1. GENERAL DESCRIPTION
MELSEC-A
1.
GENERAL DESCRIPTION
This guidebook has been compiled for the beginners of the computer link
module for use with the MELSEC-A series PCs to help them understand the
following fundamentals:
what the computer link functions can do;
the usage of the computer link functions; and
the outline of the communications procedure and the flow of data.
For the details of the descriptions contained herein and of the multidrop link
function, refer
to
the manuals listed below. Please read them and further
understand the functions of the computer link module.
(Reference manuals)
Computer LinWMultidrop Link Module User's Manual
(Computer Link Function/Printer Function) SH-3511
For the computer link functions, refer to the following sections in this guide-
book:
(1) When checking computer link functions available for dedicated
protocols
2)
External wiring
...........................................................
Section 3.3
3) Setting hardware
.......................................................
Section 4.1
4)
Data communications
1) Determining the system configuration
.........................
Section 3.1.1
(a) Reading out data from device memory
in PC CPU
.........................
;
..................................
Section 4.5
(b) Writing data into device memory in
PC
CPU
..
i.......
Section 4.6
5 ) On-demand function
...................................................
Section 4.7
(2) When checking computer link functions available in no-protocol mode
2) External wiring
...........................................................
Section 3.3
3) Setting hardware
.......................................................
Section 5.1
4)
I/O allocation of the module
.......................................
Section 5.4
5 ) Data communications
1) Determining the system configuration
.........................
Section 3.1.1
(a) Transmitting data from PC CPU
............................
Section 5.5
(b) Receiving data from computer
...............................
Section 5.6
(3) When checking computer link functions available in bidirectional mode
1) Determining the system configuration
.........................
Section 3.1.1
2) External wiring
...........................................................
Section 3.3
3) Setting hardware
.......................................................
Section 6.1
4) Data communications
(a) Transmitting data from PC CPU
............................
Section 6.4
(b)Receiving data from computer
................................
Section 6.5