Operation When Using Expansion Master Unit/Slave Unit; Operation When Power Supply Turns On/Off; Insertion And Removal Of Expansion Cable - Panasonic FP7 Series User Manual

5.5 Operation When Using Expansion Master Unit/Slave Unit

5.5.1 Operation When Power Supply Turns ON/OFF

■
Sequence of turning ON/OFF the power supply
● The power supply should be turned on or off in the following sequence.
Description
When turning on
power
When turning off
power
■
Operation when the power to the base block turns off during operation
● If the power supply to the base block (CPU unit) turns off during operation, the expansion
block will stop the operation. At this time, the output of the units attached to the expansion
block will be turned OFF.
● If the power to the base block is turned on when the power to the expansion block is on, the
system will be rebooted.
■
Operation when the power to the expansion block turns off during operation
● If the power to the expansion block (expansion slave unit) turns off during operation, a self-
diagnostic error will occur and the CPU unit will stop. Other expansion blocks will also stop.
● Operation will not restart even if the power to the expansion block turns on again when the
CPU stops due to the error. If the power to the base block is turned on when the power to all
the expansion blocks is on, the system will be rebooted.

5.5.2 Insertion and Removal of Expansion Cable

● Do not insert or remove the expansion cable when the power is on.
● The whole system operation will stop if the expansion cable is removed during operation.
Even if the cable is inserted again during operation, the operation will not restart.
WUME-FP7CPUH-09

5.5 Operation When Using Expansion Master Unit/Slave Unit

Sequence
Power supply for I/O device → Expansion block (expansion slave unit) → Base block
(CPU unit)
Base block (CPU unit) → Expansion block (expansion slave unit) → Power supply for
I/O device
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