(4)When using the QA1S6B extension base unit A GOT is physically connected to the last of all extension base units. In the Stage No. setting, however,

assign the GOT as a stage next to the last QB type extension base unit.

Assign the QA1S6B type extension base unit as a stage next to the GOT.

Connection method

Stage No.

Q38B

Main base unit

Q68B

Extension base unit

QA1S68B

Extension base unit

5.4.11When connecting to a QnA(S)CPU or An(S)CPU type

(1)When connecting with a QnASCPU type and an AnSCPU type

A GOT can be connected to an extension connector on only one side of the main base unit.

(Concurrently connecting GOTs to extension connectors on both sides is not allowed)

(2)In the case of Q4A(R)CPU, Q3ACPU, A3CPU,

A4UCPU

Empty I/O slots are required within the max. number of extension stages.

(3)For A0J2HCPU

Assign the GOT to the I/O slots 0 to 3 of extension stage 1.

(4)In the case of CPUs other than (2) (3) above Even if the max. number of stages are used with no empty I/O slots, when there is a free space of 32 I/O points or more, a GOT can be connected under the following communication interface setting.

For the communication interface setting, refer to the following.

5.3.1 Setting communication interface (Communication settings)

 

 

Max.

Communication interface

 

When connecting to

stage

setting

 

 

 

No.

Stage No.

 

Slot No.

A1

CPU/A2USCPU(-S1)

1

2

 

0

/QnAS(H)CPU(-S1)

 

 

 

 

 

 

 

 

 

 

 

A2

CPU/Q2ACPU

3

4

 

0

 

 

 

 

 

 

A3

CPU/A4 CPU

7

 

 

 

 

 

Cannot be used

Q3ACPU/Q4ACPU

7

 

 

 

 

 

A0J2HCPU

1

 

 

 

1

PREPARATORYFORPROCEDURESMONITORING 2

RANGESETBE

DEVICE CANTHAT 3

RANGEACCESS MONITORINGFOR 4

MONITORTOREDUNTANTSYSTEM HOW 5

CONNECTIONBUS 6

DIRECTTOCONNECTIONCPU 7

LINKCOMPUTER CONNECTION 8

ETHERNETCONNECTION

5. BUS CONNECTION

5 - 37

5.4 Precautions