.
L
P
3.
SPECIFICATIONS
..
rum,,
'
,
:,
.'
'
1.1..
,
MELSEC-A
3.3
Data
Communications Function8
The tables below list the data communications functions available when an
external device (such as a computer) and a 'PC CPU are connected by an
AJ71 C24 module.
3.3.1
Funcths
available
uslng dedicated
protocols
and commands
L
r
L,
P
.--
c
P
c
c
c4
P-
The functions available using dedicated protocols
i
to
4 are listed in Tables
3.3 and 3.4.
The commands in Table 3.3 are the ACPU common commands that are
employed when a CPU module (see Section 2.2) is used together with an
The commands in Table 3.4 are the AnACPU dedicated commands that are
employed when the MACPU(P21/R21)(-Sl) or A3ACPU(P21/R21) is used
together with an AJ71 C24.
Use the commands
in
Table 3.4 to access the AnACPU device memory.
Read/write
of
data can be done with the whole area
of
each device memory.
The functions
in
Tables 3.3 and 3.4 are also available when a multidrop link
of
l:n or m:n ratio configuration is made and when a computer link is made
using the data link system.
AJ71 C24.
3-6
._
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
To Next Page
Loading...
