Appendix 1 Reading And Writing By Designation Of The Device Memory Extension - Mitsubishi MELSEC Q Series Reference Manual

APPENDICES

Appendix 1 Reading and Writing by Designation of the Device Memory Extension

The extension designation of the device memory is used by an external device to
designate other devices than the ones described in Section 3.3.1 (3) using the
commands listed in Section 3.3.1 (1). It is also used to qualify and designate device
numbers and network numbers of the device memory to access.
The following section provides an outline of extension designation of the device
memory.
In the explanations that follow this section, these designation expressions are indicated
as [Designation-1] to [Designation-5].
[Designation-1]
[Designation-2]
[Designation-3]
Extension
setting data
Device memory of
network module of
network number 1
SW0
(Access destination)
SW5
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A designation for accessing a link direct device of CC-Link IE Controller Network,
CC-Link IE Field Network, MELSECNET/H, MELSECNET/10 (link input, link
output, link special relay, etc.; refer to the table in Appendix 1.2 (2).)
A designation for accessing an intelligent function module device (including a
special function module device) of an intelligent function module (including
special function modules of the A/QnA series) on a Q/L/QnACPU station and an
MELSECNET/H, MELSECNET/10 remote I/O station (buffer register; refer to the
table in Appendix 1.2 (2).)
A designation of target modules by qualifying extension setting of network
number and input/output signals by 1) and 2) below.
1) Designating target modules of [Designation-1] above
Target a network module of (arbitrary network number) + (network
number designated by index register)
2) Designating target modules of [Designation-2] above
Target an intelligent function module of (arbitrary input/output signal
number) + (input/output signal number designated by index register)
For example, when multiple network modules are loaded on the access
station, an external device can access the same device memory (SW5) of
each module by registering the extension setting data and index register
"Z0" as shown in the following explanation diagram.
0
Designate network number (1 to 3) of each module
using extension setting data (0: offset value) + Z0.
Z0 1 to 3
Device memory of
network module of
network number 2
SW0
(Access destination)
SW5
Device memory of
network module of
network number 3
SW0
(Access destination) Designate by device
SW5
code, device number,
etc.
APPENDICES
A
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