8. BUS CONNECTION
8.4 Precautions
8 - 41
8
BUS CONNECTION
8.4.14 When 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.
Precautions for Q4ARCPU redundant system
configurations
The GOT does not operate normally in the following
system configurations.
(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.
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:
GT Designer3 (GOT2000) Help
8.4.15 When monitoring the
Q170MCPU, Q170MSCPU(-
S1)
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 (GOT2000) Help
Example) Setting dialog box of the bit device
8.4.16 Troubleshooting
For the troubleshooting, refer to the User's Manual for the
GOT you are using.
Caution
Version of redundant extension base unit
Enlarged view of rating plate
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