Mitsubishi MELSEC-A Series Reference Manual page 57

4. COMPOSITION OF A THREE-TIER SYSTEM
Module Model
A2ASCPU
+A1SJ71AP21
A2ASCPU
+A1SJ71AR21
A2ASCPU-S1
+A1SJ71AP21
A1SJ71AP2
1
A2ASCPU-S1
A1SJ71AR2
+A1SJ71AR21
1
A2USHCPU-
S1
+A1SJ71AP21
A2USHCPU-
S1
+A1SJ71AR21
A2UCPU
CPU
+AJ71AP21(S
module
3)
+
link
A2UCPU
modules
+AJ71AR21
(two)
A2UCPU-S1
+AJ71AP21(S
3)
A2UCPU-S1
AJ71AP21
+AJ71AR21
AJ71AP21-
S3
A3UCPU
AJ71AR21
+AJ71AP21(S
3)
A3UCPU
+AJ71AR21
A4UCPU
+AJ71AP21(S
3)
A4UCPU
+AJ71AR21
Table 4.1 Link modules available for the three-tier system (Continued)
Second tier
MELSEC
MELSECNET
NET
mode
mode
M L R M L
*2: MELSECNET, MELSECNET
second tier.
Applicable system
MELSECNET data link
MELSECNET
MELSECNET
composite
mode
mode
M L R L/m r
*2
or MELSECNET
4 - 9
Third tier
MELSEC MELSECNET
NET composite
mode mode
L/m L/m r
Use the station number
*2 *2
setting switch to set the
selection of master or
local station.
composite modes can be used for the
: Available
Remarks