Mitsubishi Electric AJ71QC24 Manual page 8

1. GENERAL ION QnA
I GENERAL DESCRIPTION
This guidebook was written to provide first-time users of the MELSEC-QnA Series PC Serial
Communications Module with an understanding of the following.
What the serial communications module is
How to use the serial communications module
General description of communications protocols and data flow.
The manual shown below describes the contents of this guidebook in detail and describes the
serial communications module data communications functions not covered in this guidebook.
Use it to gain a deeper understanding of the serial communications module.
<Detailed description manuab
AJ71 QC24(-R2/R4) Serial Communications Module User's Manual 166661 2
When using this guidebook to check the data communications functions of each protocol of the
serial communications module, see the following sections.
a
Checking the dedicated protocols data communications functions
(a) Selecting the system configuration
......................................................
Section 3.1 .1
(c) Hardware setting
...................................................................................
Section 4.2
(d) Data communications in ASCII mode
@
Reading PC CPU device memory
............................................
Sections 4.5, 4.6
@
Writing PC CPU device memory
..............................................
Sections 4.7, 4.8
(e) On-demand function
..............................................................................
Section 4.9
(b) External wiring
.......................................................................................
Section 3.3
Checking the non procedure protocol data communications functions
Selecting the system configuration
......................................................
Section 3.1
. I
External wiring
.......................................................................................
Section 3.3
Hardware setting
...................................................................................
Section 5.2
Data communications
@
Transmitting data from PC CPU
........................................................
Section 5.5
@
Receiving data from an external device
.............................................
Section 5.6
Data communications using user frames
................................................
Section 5.7
Data communications using ASCII-BIN conversion
..............................
Section 5.8
Checking the bidirectional protocol data communications functions
(a) Selecting the system configuration
......................................................
Section 3.1 ,1
(b) External wiring
.......................................................................................
Section 3.3
(c) Hardware setting
...................................................................................
Section 6.2
(d) Data communications
@
Transmitting data from PC CPU
........................................................
Section 6.5
@
Receiving data from an external device
.............................................
Section 6.6
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