Panasonic FP Series Programming Manual page 1262

The number of points noted above is the number reserved as the calculation memory. The actual number of
1)
points available for use is determined by the hardware configuration.
If no battery is used, only the fixed area is backed up.
2)
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.
The number of points for timer and counter relays can be changed using system register 5. The numbers in
3)
the table are the default settings.
40.7.4 Relays and memory areas for FP-X
Relays [bits]
Type
External input relays
1)
External output relays
1)
Internal relays
2)
Link relays
2)
Timer relays
2) 3)
Counter relays
2) 3)
Special internal relays
Memory area [words]
Type
External input relays
1)
External output relays
1)
Internal relays
2)
Link relays
Data C14
registers
2)
Memory Available address area
size
F/P
1760 X0–X109F
1760 Y0–Y109F
4096 R0–R255F
2048 L0–L127F
1024 T0–T1007/
C1008–C1023
1024 C1008–C1023/
T0–T1007
192 R9000–R911F
Memory Available address area
size
F/P
110 WX0–WX109
110 WY0–WY109
256 WR0–WR255
128 WL0–WL127
12285 DT0–DT12284
IEC
%IX0.0– Turn on or off based on external
%IX109.15 input.
%QX0.0– Turn on or off external outputs
%QX109.15 based on the operation result.
%MX0.0.0– Used internally by the PLC
%MX0.255.15 program to store bit information.
%MX7.0.0– Shared by multiple PLCs
%MX7.127.15 connected using PLC link.
%MX1.0– Turn on when the value set with
%MX1.1007/ a TM instruction for the timer with
%MX2.1008– the same number has reached 0.
%MX2.1023
%MX2.1008– Turn on when the value set with
%MX2.1023/ a CT instruction for the counter
%MX1.0– with the same number has
%MX1.1007 reached 0.
%MX0.900.0– Turn on or off based on specific
%MX0.911.15 conditions. Used internally as a
flag.
IEC
%IW0– Code for specifying 16 external
%IW109 input points as one word (16 bits)
of data.
%QW0– Code for specifying 16 external
%QW109 output points as one word (16
bits) of data.
%MW0.0– Code for specifying 16 internal
%MW0.255 relays as one word (16 bits) of
data.
%MW7.0– Code for specifying 16 link relays
%MW7.127 as one word (16 bits) of data.
%MW5.0– Data memory used in a program.
%MW5.12284 Data is handled in 16-bit units
(
Appendix Programming Information
Function
Function
d)
1261