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