Internal Devices (Read/Write)
4.2.2 Internal Devices (Read/Write)
Device Name Relay/Register
Data Format
Remarks
0 or 1 Internal processing handles a value of less than 0.5 as “0” and a value of 0.5 or more as “1.” M1_16: status registers of M01 to M16 relays M17_32: status registers of M17 to M32 relays M33_48: status registers of M33 to M48 relays
M01 to M128
M49_64: status registers of M49 to M64 relays Non-holding type M65_80: status registers of M65 to M80 relays M81_96: status registers of M81 to M96 relays M97_112: status registers of M97 to M112 relays M113_128: status registers of M113 to M128 relays
0 or 1 Internal processing handles a value of less
than 0.5 as “0” and a value of 0.5 or more as “1.” Internal (M)
M1_16_B: status registers of M01_B to M16_B Holding type relays
M01_B to
M32_B
relays M17_32_B: status registers of M17_B to
M32_B relays 0 or 1
Internal processing handles a value of less than 0.5 as “0” and a value of 0.5 or more as “1.” M33_48_B: status registers of M33_B to M48_B relays M49_64_B: status registers of M49_B to
Holding type
M64_B relays
M33_B to
However, when the
M65_80_B: status registers of M65_B to
M128_B
control period is 50ms,
M80_B relays
the data is non-holding
M81_96_B: status registers of M81_B to
type.
M96_B relays M97_112_B: status registers of M97_B to
M112_B relays M113_128_B: status registers of M113_B to M128_B relays
DAT01 to
DAT20
Non-holding type
Holding type DAT registers
Handles data as 4-byte floating-point numbers
(IEEE 754 single-precision floating-point
DAT01_B to
However, when the
format).
DAT08_B
control period is 50ms, the data is non-holding type. Holding type, parameter setting
P-registers
P01 to P10
Handles 2-byte integer ranging from -19999 to 30000 and the decimal point position.
P-registers are the same as P-parameters displayed on the UT.
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IM 05P05A01-02EN
Device Name Relay/Register
Data Format
Remarks
Holding type
K01 to K20: Handles 2-byte integer ranging
In the ladder program,
do not write to K-registers
from -32768 to 32767 and the decimal point
K-register constants from 0 to 65535 and the decimal point position. are set in the
K21 to K30: Handles 2-byte integer ranging
Parameter Setting window.
C_1
Constant -1 ( unsigned 2-byte integer) C0 Constant 0 ( unsigned 2-byte integer) C1 Constant 1 ( unsigned 2-byte integer) C2 Constant 2 ( unsigned 2-byte integer)
C3 Constant 3 ( unsigned 2-byte integer)
Operations of Ladder Program Instructions
C4 Constant 4 ( unsigned 2-byte integer)
Constant Fixed values. registers
C5 Constant 5 ( unsigned 2-byte integer)
Write disabled.
C10
Constant 10 ( unsigned 2-byte integer)
C50
Constant 50 ( unsigned 2-byte integer)
C60
Constant 60 ( unsigned 2-byte integer)
C100
Constant 100 ( unsigned 2-byte integer)
C1000
Constant 1000 ( unsigned 2-byte integer)
C10000
Constant 10000 ( unsigned 2-byte integer) "1" at time-out or "0" at reset
Used by a timer Time-out
instruction. relays
TIM1 to TIM4
TIM_RELAY: status registers of TIM1 to TIM4 relays
Write disabled.
Used by a counter Count-out
"1" at count-out or "0" at reset
CNT1 to CNT4
relays
CNT1 to CNT4: status registers of
instruction.
CNT_RELAY relays
Write disabled.
IM 05P05A01-02EN