Fnc 74 - Segl / Seven Segment With Latch; Plcs - Mitsubishi Electric MELSEC FX3U Programming Manual

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
15.5 FNC 74 – SEGL / Seven Segment With Latch
Outline
This instruction controls one or two sets of 4-digit seven-segment display units having the latch function.
1. Instruction format
FNC 74
SEGL
2. Set data
Operand Type
S
D
n
3. Applicable devices
Bit Devices
Oper-
and System User
Type
X Y M T C S D .b KnX KnY KnM KnS T C D R U \G
S
D
n
: This function is supported only in FX
Explanation of function and operation
1. 16-bit operation (SEGL)
The 4-digit numeric value stored in
segment display unit with the BCD decoder in the time division method.
Command
input
FNC 74
SEGL
When using one set of 4 digits (n = K0 to K3)
1) Data and strobe signal
A 4-digit numeric value stored in
from
D
The strobe signal is output in turn from
set of 4-digit seven-segment display unit.
2) For , binary data in the range from 0 to 9999 is valid.
S
452
Mnemonic
16-bit Instruction
7 steps SEGL
Head word device converted into the BCD format
Head Y number to be output
Parameter number [setting range: K0 (H0) to K7 (H7)]
Digit Specification
3U
S
S D
S
to +3 in the time division method.
D
15 External FX I/O Device – FNC 70 to FNC 79
15.5 FNC 74 – SEGL / Seven Segment With Latch
Operation Condition
32-bit Instruction
Continuous
Operation
Description
Word Devices
Special
System User
Unit
/FX

PLCs.

3UC
is converted into BCD data, and each digit is output to the seven-
n
→ For selection of "n", refer to Subsection 15.5.2.
is converted from binary into BCD, and each digit is output in turn
+4 to +7 in the time division method also to latch one
D D
Mnemonic Operation Condition
−
16-bit binary
16-bit binary
Others
Con- Real
Index
stant Number
V Z Modify K H E
Data Type
Bit
Charac-
Pointer
ter String
" " P