Mitsubishi MELSEC-A Series Reference Manual page 64

4. COMPOSITION OF A THREE-TIER SYSTEM
Module Model
A1NCPUP21
A1NCPUP21-
S3
A1NCPUR21
A2NCPUP21
A2NCPUP21-
S3
A2NCPUR21
A2NCPUP21-
AJ71AT21B
S1
A2NCPUP21-
CPU
S4
module
with link
A2NCPUR21
function
-S1
+
A3NCPUP21
link
module
A3NCPUP21-
S3
A3NCPUR21
A2ACPUP21
A2ACPUR21
A2ACPUP21-
S1
AJ71AT21B
A2ACPUR21-
S1
A3ACPUP21
A3ACPUR21
A2ASCPU
+A1SJ71AP2
1
A2ASCPU
+A1SJ71AR2
CPU
1
module
+ A1SJ71AT21
A2ASCPU-
link B
S1
modules
+A1SJ71AP2
(two)
1
A2ASCPU-
S1
+A1SJ71AR2
1
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
*1: MELSECNET and MELSECNET
*2: MELSECNET, MELSECNET
second tier.
*3: Applicable when the A1SJ71AT21B is used.
Applicable system
MELSECNET/B data link
MELSECNET
MELSECNET
composite
mode
mode
M L R L/m r
*1
*2
*2
composite modes can be used for the second tier.
, and MELSECNET
4 - 16
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.
*2 *2
*2*3 *2*3
composite modes can be used for the
: Available
Remarks