Mitsubishi MELSEC-A Series Reference Manual page 63

4. COMPOSITION OF A THREE-TIER SYSTEM
Module Model
A2ASCPU
A2ASCPU-S1
A2USHCPU-
S1
Q2ASCPU A1SJ71AT21
B
Q2ASCPU-
S1
Q2ASHCPU
Q2ASHCPU-
S1
A2ACPU
A2ACPU-S1
CPU
A3ACPU
module
+
A2UCPU
link
A2UCPU-S1
module
A3UCPU AJ71AT21B
A4UCPU
Q2ACPU
Q2ACPU-S1
Q3ACPU
Q4ACPU
Q02CPU
Q02HCPU
A1SJ71AT23
Q06HCPU
BQ
Q12HCPU
Q25HCPU
A0J2P25
A0J2P25-S3
A0J2R25
Link
AJ72P25
module
AJ72R25
A1SJ72T25B
AJ72T25B
Table 4.2 Link modules available for the three-tier system (Continued)
MELSECNET data link
Second tier
MELSEC
MELSECNET
NET
mode
mode
M L R M L
Applicable system
MELSECNET/B data link
MELSECNET
MELSECNET
composite
mode
mode
M L R L/m r
4 - 15
Third tier
MELSEC MELSECNET
NET composite
mode mode
L/m L/m r
Use the station number
setting switch to set the
selection of master or
local station.
• Used only for local
stations.
• Installed in an I/O slot
in an extension base
unit.
: Available
Remarks