2.3 Precautions
2 - 49
1
OVERVIEW
2
BUS CONNECTION
3
DIRECT CONNECTION
TO CPU
4
COMPUTER LINK
CONNECTION
5
MELSECNET/10
CONNECTION (PLC TO
PLC NETWORK)
6
CC-Link CONNECTION
(INTELLIGENT DEVICE
STATION)
7
CC-Link CONNECTION
(Via G4)
8
ETHERNET
CONNECTION
11 When connecting multiple GOTs
(1) System including different GOT series
The GOT1000 series cannot be used with different GOT 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).
12 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.
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
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