20Fnc72 (Ext): Time-Sharing Reading Of Digital Switches - Mitsubishi FX2N-10GM Hardware / Programming Manual

FX Series Positioning Controllers
5.10.20 FNC72 (EXT): Time-sharing reading of digital switches
FNC 72
EXT
EXTERNAL
devices
Applicable
devices
and basic
format
Reading of a positive value
M 0
FNC 72
1) Head input No. (Occupies 4 input points.)
The connections in this example are as follows.
X00: Terminal 1 of DSW
X01: Terminal 2 of DSW
X02: Terminal 4 of DSW
X03: Terminal 8 of DSW
2) Head output No. for time-sharing operation (Occupies 1 to
8 output points.)
The connections in this example are as follows.
Y00: Terminal C of DSW (100 digit)
Y01: Terminal C of DSW (101 digit)
Y02: Terminal C of DSW (102 digit)
Y03: Terminal C of DSW (103 digit)
3) Data storage destination
When a 16-bit instruction is executed, a digital switch BCD
value of up to 4 digits is converted into binary data and
saved in D0.
When a 32-bit instruction is executed, a digital switch BCD value of up to 8 digits is con-
verted into binary data and saved in (D1, D0).
4) Number of digits
K1 to K4 are used with 16-bit instructions, and K5 to K8 are used with 32-bit instructions.
(Refer to the right page.)
The same number of digit-switching output points as the specified number of digits is
required.
In the FX
2N
Time-sharing reading of digital switches
16-bit operation EXT
9 steps
Word
K,H KnX KnY
n
Drive
input
FNC 72
S·
EXT
Head input Head ouput Data
S· D1·
X00 Y00
EXT
(1) (2)
Upper 4 digits
-10GM, K1 to K6 (6 digits) are available.
16-bit operation
14 steps
KnM D V,Z
S2·
D1· D2·
n
Number of
storage digits
destination
D2·
n
This instruction performs time-sharing
D 0 K 4
reading of the data from the digital switches.
(3) (4)
↑ ↑
Lower 4 digits
Program format 5
Applicable models
Series name
[D] EXT
FX -10GM
2N
FX -20GM
2N
Bit
X
devices
S·
•
The data is read from the digital
switches using the time-sharing
method.
Remarks
Y M
D1·
5-60