Panasonic FP2

Precautions Regarding Serial Data Unit Operation and ProgramsFP2 Serial Data Unit
5 − 3
5.1 Precautions Regarding Basic Operation of the Unit
5.1 Precautions Regarding Basic Operation of the Unit
5.1.1 Shared Memory Values When the Power Supply is Off
Data in the shared memory of the serial data unit is not backed up if the power supply
is turned off. Consequently, if the transmission format has been specified from the
shared memory, that transmission format must be written to the shared memory after the
power supply has been turned on again, before communication can be carried out.
SDU
SD RD ERR SD RD ERR AL
COM.1COM.2
COM.1(RS232C)
COM.2(RS232C)
SDU
SD RD ERR SD RD ERR AL
COM.1COM.2
COM.1(RS232C)
COM.2(RS232C)
H 3231
H 3433
H 0D35
H0
H03
H011A
H03
H0
H0
H0
H0
H0
H0
H0
on→off→on
Shared memory
Shared memory
Power supply
Each set
value and
elapsed
value
All set values
and elapsed
values are
reset to ”0”.
When the power supply is turned off, the set values in the shared memory are cleared
to “0”, and the received buffer and sent buffer are both cleared.