Mitsubishi MELSEC-A Series Reference Manual page 72

4. COMPOSITION OF A THREE-TIER SYSTEM
Module Model
A2ACPU
A2ACPU-S1
A3ACPU
A2UCPU
A2UCPU-S1
A3UCPU AJ71AT21B
CPU
A4UCPU
module
Q2ACPU
+
Q2ACPU-S1
link
Q3ACPU
module
Q4ACPU
Q02CPU
Q02HCPU
A1SJ71AT23
Q06HCPU
BQ
Q12HCPU
Q25HCPU
A0J2P25
A0J2P25-S3
A0J2R25
Data link
AJ72P25
module
AJ72R25
A1SJ72T25B
AJ72T25B
Table 4.3 Link modules available for the three-tier system (Continued)
MELSECNET/B data link
Second tier
MELSEC
MELSECNET
NET
mode
mode
M L R M
Applicable system
MELSECNET data link
MELSECNET
MELSECNET
composite
mode
mode
L M L R L/m
4 - 24
Third tier
MELSEC MELSECNET
NET composite
mode
mode
r L/m L/m r
Installed in an I/O slot
in an base unit.
: Available
Remarks
• Used only for local
stations.
• Installed in an I/O
slot in an extension
base unit.