Precautions Regarding Basic Operation Of The Unit; Shared Memory Values When The Power Supply Is Off - Panasonic FP2 User Manual

FP2 Serial Data 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.
Shared memory
H 3231
H 3433
H 0D35
H 0
H 03
H 03
H 011A
SDU
SD RD ERR SD RD ERR AL
COM.1COM.2
COM.1(RS232C)
COM.2(RS232C)
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.
Precautions Regarding Serial Data Unit Operation and Programs
5.1 Precautions Regarding Basic Operation of the Unit
Each set
value and
elapsed
value
Power supply
on→off→on
Shared memory
H 0
H 0
H 0
All set values
H 0 and elapsed
values are
H 0
reset to "0".
H 0
H 0
SDU
SD RD ERR SD RD ERR AL
COM.1COM.2
COM.1(RS232C)
COM.2(RS232C)
5 − 3