Specifications

4-44
4.6 Index Setting
2) Devices with restrictions on index registers
(c) Devices that can be used for the index setting (for FXCPU)
The following table shows the devices that can be used for the index setting.
1) Devices with restrictions on index registers
When using FXCPU, note the following precautions.
• The index setting for devices used in the basic instructions is available for
FX
3U and FX3UC only.
• The index setting cannot be applied to 32-bit counter and special auxiliary
relay.
Remark
There are no usage restrictions on index register numbers for current values of
the timer and counter.
Device Description Example
T
Only Z0 or Z1 can be used for contacts or
coils of the timer.
C
Only Z0 or Z1 can be used for contacts or
coils of the counter.
Device Description
M, S, T, C, D, R,
KnM, KnS, P, K
Decimal devices, values
X, Y, KnX, KnY Octal devices
H Hexadecimal values
TS0Z0
OUT_T
EN ENO
s1
s2
TC1Z1
100
CS0Z1
OUT_C
EN ENO
s1
s2
CC1Z0
100
X0
OUT_T
EN ENO
s1
s2
TC0
100
SM400
BCD
EN ENO
s d
TN0Z4
X1
OUT_C
EN ENO
s1
s2
CC100
10
SM400
BCD
EN ENO
s d
CN100Z6
K4Y30
K2Y40
Set value of timer
(Index setting is not applicable)
Current value of timer
Set value of counter
(Index setting is not applicable)
Current value of counter