2. System Configuration
The table below lists installable PLC CPUs, applicable data link systems/network systems,
and the number of CPUs, with regard to DN91.
Number of installable CPUs
Installation location
A1SJ71DN91 AJ71DN91
A0J2CPU
A0J2HCPU
Not applicable
A1SCPU(S1)
A1SHCPU
A1SJCPU(S3)
A1SJHCPU
A1SCPUC24-R2
A2SCPU(S1)
A2SHCPU(S1)
A2USCPU(S1)
A2USHCPU-S1
A2ASCPU(S1/S30/S60)
Q2ASCPU(S1)
Q2ASHCPU(S1)
No limitations
A1CPU
A2CPU(S1)
A3CPU
A1NCPU
A2NCPU(S1)
A3NCPU
A3MCPU
A3HCPU
A2ACPU(S1)
A3ACPU
A2UCPU(S1)
A3UCPU
A4UCPU
Q2ACPU(S1)
Q3ACPU
Q4ACPU
PLC CPU
Q4ARCPU
Not applicable
No
limitations
Remote I/O station of MELSECNET
Remote I/O station of MELSECNET/B
Not
applicable
AJ72LP25
AJ72BR15
Data link and
network
Remote I/O
station of
MELSECNET/10 AJ72QLP25
AJ72QBR15
Not applicable
No
limitations
