1. Turn ON the GOT.
2. After the monitor screen is displayed on the GOT, turn ON the Q4ARCPU redundant system.
At this time, a timeout is displayed on the system alarm. Use System Information to reset the alarm. For the system alarm, refer to the following manual:
Precautions for Q4ARCPU redundant system configurations
The GOT does not operate normally in the following system configurations.
5.4.14When connecting to a Q4ARCPU redundant system

(1)When the GOT is bus-connected to a Q4ARCPU redundant system

Connect the GOT to the last redundant extension base unit (A68RB) of the Q4ARCPU redundant system.

For the redundant extension base units, use version B or later.

The version can be confirmed in the DATE field of the rating plate.

Caution

Version of redundant extension base unit

Enlarged view of rating plate

POINT

(1)When the GOT is bus connected to the bus switching module (A6RAF) on a redundant main base unit (A32RB/A33RB)

(2)When the GOT is bus connected to a version-A redundant main base unit (A68RB)

(2)Power-On sequence for GOT and Q4ARCPU redundant system

Apply the power to the GOT and Q4ARCPU redundant system in the following sequence.

GT Designer3 Version Screen Design

Manual

5.4.15When monitoring the Q170MCPU

Set [CPU No.] to "2" in the device setting to monitor the device of the Motion CPU area (CPU No.2).

When the CPU No. is set to "0" or "1", the device on the PLC CPU area (CPU No.1) is monitored.

When the CPU No. is set to the number other than "0" to "2", a communication error occurs and the monitoring cannot be executed.

For setting the CPU No., refer to the following manual.

GT Designer3 Version Screen Design Manual

Example) Setting dialog box of the bit device

5.4.16Troubleshooting

For the troubleshooting, refer to the User's Manual for the GOT you are using.

1

PREPARATORYFORPROCEDURESMONITORING 2

RANGESETBE

DEVICE CANTHAT 3

RANGEACCESS MONITORINGFOR 4

MONITORTOREDUNTANTSYSTEM HOW 5

CONNECTIONBUS 6

DIRECTTOCONNECTIONCPU 7

LINKCOMPUTER CONNECTION 8

ETHERNETCONNECTION

5. BUS CONNECTION

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5.4 Precautions