Panasonic FP Series

Appendix Programming Information
1263
Available address area Type Memory
size
F/P IEC
Function
Special data registers 187 DDT90000–
DDT90438
%MD5.90000–
%MD5.90438
Data memory for storing settings
and error codes.
Index registers 7 DI0–DIC %MD6.0–
%MD6.12
Data memory used to modify
constants and memory area
addresses.
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.
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.
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.
40.7.5 Relays and memory areas for FP-e
Relays [bits]
Available address area Type Memory
size
F/P IEC
Function
External input relays
1)
208 X0–X12F %IX0.0–
%IX12.15
Turn on or off based on external
input.
External output relays
1)
208 Y0–Y12F %QX0.0–
%QX12.15
Turn on or off external outputs
based on the operation result.
Internal relays
2)
1008 R0–R62F %MX0.0.0–
%MX0.62.15
Used internally by the PLC
program to store bit information.
Timer relays
2) 3)
100 T0–T99/
C100–C143
%MX1.0–
%MX1.99/
%MX2.100–
%MX2.143
Turn on when the value set with
a TM instruction for the timer with
the same number has reached 0.
Counter relays
2) 3)
44 C100–C143/
T0–T99
%MX2.100–
%MX2.143/
%MX1.0–
%MX1.99
Turn on when the value set with
a CT instruction for the counter
with the same number has
reached 0.
Special internal relays 64 R9000–R903F %MX0.900.0–
%MX0.903.15
Turn on or off based on specific
conditions. Used internally as a
flag.
Memory area [words]
Available address area Type Memory
size
F/P IEC
Function
External input relays
1)
13 WX0–WX12 %IW0–
%IW12
Code for specifying 16 external
input points as one word (16 bits)
of data.