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5. BUS CONNECTION
5.4 Precautions
5.4.12 When connecting multiple
GOTs
(1) System including different GOT series
The GOT1000 series can be connected with GOT-A900
series in a system.
When using them together, refer to the following
Technical News.
Precautions when Replacing GOT-A900 Series
with GOT1000 Series (GOT-A-0009)
The GOT1000 series cannot be used with GOTs other
than GOT-A900 series in a system.
(2) Restrictions on No. of GOTs
The number of connectable GOTs is restricted
according to the CPU type and the number of intelligent
function modules.
*1 Indicates the following models:
AD51(S3), AD51H(S3), AD51FD(S3), AD57G(S3),
AJ71C21(S1), AJ71C22(S1), AJ71C23, AJ71C24(S3/S6/
S8), AJ71UC24, AJ71E71(-S3), AJ71E71N-B2/B5/T/B5T,
AJ71E71N3-T, AJ61BT11 (in intelligent mode only),
A1SJ71C24(-R2/PRF/R4),
A1SJ71UC24(-R2/PRF/R4),
A1SJ71E71-B2/B5(-S3),
A1SJ71E71N-B2/B5/T/B5T, A1SJ71E71N3-T, A1SD51S,
A1SJ61BT11 (in intelligent mode only)
*2 Only the A1SD51S can be connected to the QCPU (Q
Mode).
5.4.13 When using a PLC CPU in the
direct mode
Note that when the I/O control mode of the PLC CPU is the
direct mode, and if the 1st GOT is connected to the main or
extension base unit with a 5m extension cable (GT15-
AC50B, GT15-A1SC50NB), the input X of the empty I/O
slot cannot be used.
No restrictions apply when the I/O control mode is the
refresh mode.
On PLC CPUs whose I/O control mode can be selected by
a switch, set the I/O control mode to the refresh mode
before use.
POINTPOINTPOINT
In the cases where input X of an empty I/O slot is used
(1) When input X is assigned on the MELSECNET/10
network
(2) When input X of an empty I/O slot is turned ON/
OFF by the computer link module
(3) When input X of the I/O slot is turned ON/OFF by
the touch switch function (Bit SET/RST/Alternate/
Momentary) of GOT
When connecting to
Number of
connectable
GOTs
Total number of
connectable GOTs
and intelligent
function modules
*1
QCPU(Q mode),
motion controller CPU (Q Series)
Up to 5
5 GOTs
+ 6 intelligent
function modules
*2
QCPU (A mode)
Not
connectable
―――――
QnACPU Up to 3 6 in total
ACPU
AnUCPU,
AnACPU,
A2US(H)CPU
Up to 3 6 in total
AnNCPU,
AnS(H)CPU,
A1SJ(H)CPU
Up to 2 2 in total
A0J2HCPU Up to 1 2 in total
A1FXCPU
Not
connectable
―――――
Motion
controller
CPU
(A Series)
A273UCPU,
A273UHCPU(-S3),
A373UCPU(-S3),
A173UHCPU(-S1)
Up to 3 6 in total
A171SHCPUN,
A172SHCPUN
Up to 2 2 in total
GOT-A900GOT1000 GOT800