Panasonic FPS Series User Manual page 308

FPΣ User's Manual
Memory area [double words]
Type
External input
1)
relays
External output
1)
relays
2)
Internal relays
Link relays
2)
Data registers
2)
Link registers
Timer/counter set
2)
value area
Timer/counter
elapsed value area
2)
Special data
registers
1)
The number of points noted above is the number reserved as the calculation memory. The actual number of
points available for use is determined by the hardware configuration.
2)
If no battery is used, only the fixed area is backed up.
Counter relays: 16 (C1008–C1023)
Internal relays: 128 (R900–R97F)
Data registers: DT32710–DT32764.
If the optional battery is used, the data in the hold and non-hold areas specified in the system registers will
be backed up.
If the battery is empty or no battery is present and additional hold areas have been defined, the hold/non-
hold operation becomes unstable. The data value will become indefinite. It is not cleared to 0 the next time
the power is turned on. Do not forget to monitor the battery status or to reset the hold areas to the default
values if no battery is used. See "Backup Battery" on page 95.
3)
The number of points for timer and counter relays can be changed using system register 5. The numbers in
the table are the default settings.
Available address area
Memory
size
FP
DWX0–
37
DWX72
DWY0–
37
DWY72
DWR0–
128
DWR254
DWL0–
64
DWL126
DDT0–
16382
DDT32763
DLD0–
128
DLD254
DSV0–
512
DSV1022
DEV0–
512
DEV1022
DDT90000–
130
DDT90258
12.5 Relays and Memory Areas
IEC
%ID0– Code for specifying 32 external input
%ID72 points as a double word (32 bits) of data.
%QD0– Code for specifying 32 external output
%QD72 points as a double word (32 bits) of data.
%MD0.0– Code for specifying 32 internal relay points
%MD0.254 as a double word (32 bits) of data.
%MD7.0– Code for specifying 32 link relay points as
%MD7.126 a double word (32 bits) of data.
%MD5.0– Data memory used in a program. Data is
%MD5.32763 handled in 32-bit units (double word).
Data memory shared by multiple PLCs
%MD8.0–
connected using PLC link. Data is handled
%MD8.254
in 32-bit units (double word).
Data memory for storing the set values of
%MD3.0–
timers or counters. The values are stored
%MD3.1022
by timer/counter number.
Data memory for storing the elapsed
%MD4.0– values during operation of timers or
%MD4.1022 counters. The values are stored by
timer/counter number.
%MD5.90000– Data memory for storing settings and error
%MD5.90258 codes.
Function
291