Mitsubishi MELSEC-A Series Reference Manual page 39

2. TWO-TIER SYSTEM IN THE MELSECNET DATA LINK SYSTEM
(2)
Module Model
A0J2HCPUR21
A2CCPUR21
A1NCPUR21
A2NCPUR21
A2CPUR21-S1
CPU
module
A2NCPUR21-S1
A3NCPUR21
A2ACPUR21
A2ACPUR21-S1
A3ACPUR21
A1SJ71AR21
AJ71AR21
Data link
A0J2R25
module
AJ72R25
A1SJ71AR23Q
Data link module using coaxial cable
The data link modules that can be connected with coaxial cable are listed in Table
2.3.
Table 2.3 Data Link Modules Connectable with Coaxial Cable
Description
CPU module with the link
function
CPU module with the link
function
Module for data link, used with
any of the following CPUs:
A1SJHCPU, A1SHCPU
A2SHCPU, A2ASCPU(S1)
A2USHCPU-S1,
Q2AS(H)CPU(S1)
Module for data link, used with
a CPU module without the link
function (ACPU)
Compact type module for
remote I/O stations
Module for remote I/O stations,
which is to be mounted on the
following base units:
A32B(-S1), A35B, A38B
Module for data link, used with
a QCPU module
REMARK
(1) The M, L and R stations in Table 2.3 indicate the following stations.
a) M station.......... Master station
b) L station........... Local station
c) R station........... Remote I/O station
(2) *1: Applicable only when used in combination with the A2US(H)CPU(S1) or
Q2AS(H)CPU(S1).
(3) *2: Applicable only when used in combination with the AnACPU, AnUCPU or
QnACPU.
Applicable system
Two-tier system
MELSEC
MELSECNET
mode
NET mode
M L R M L
*1 *1
*2 *2
2 - 12
Remarks
MELSECNET
composite mode
M L R
Use the station number
setting switch to set the
selection of master or
local station.
*1
Installed in an I/O slot in
a base unit.
*2
Installed in the CPU slot
of a main base unit.
• Used only for local
stations.
• Installed in an I/O slot
in an extension base
unit.
: Applicable