Fnc280 - Hsct / High Speed Counter Compare With Data Table - Mitsubishi Electric MELSEC FX3U Programming Manual

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
32.1 FNC280 – HSCT / High Speed Counter Compare With Data Table
Outline
This instruction compares the current value of a high speed counter with a data table of comparison points,
and then sets or resets up to 16 output devices.
1. Instruction format
FNC 280
D HSCT
2. Set data
Operand Type
S
1
m
S
2
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
1
m
S
2
D
n
Only a high speed counter C235 to C255 can be specified in " ".
Explanation of function and operation
1. 32-bit operation (DHSCT)
The current value of a high speed counter specified in
which has (3 m) points stored in
in the data table is output to
Command
input
FNC280
DHSCT
748
Mnemonic
16-bit Instruction
⎯
⎯
Head device number storing the data table
Number of comparison points in data table [1 ≤ m ≤ 128]
High speed counter number (C235 to C255)
Head device number to which the operation status is output
Number of devices to which the operation status is output [1 ≤ n ≤ 16]
Digit Specification
and later, and the operation output set value (ON or OFF) specified
S
1
to
D D
S m
1
32 High Speed Processing 2 – FNC280 to FNC289
32.1 FNC280 – HSCT / High Speed Counter Compare With Data Table
Operation Condition
32-bit Instruction
Description
Word Devices
Special
System User
Unit
is compared with the data table shown below
S
2
+n-1.
S D n
2
Mnemonic Operation Condition
DHSCT
21 steps
⎯
16- or 32-bit binary
16-bit binary
32-bit binary
16-bit binary
Others
Con- Real
Index
stant Number
V Z Modify K H E
Continuous
Operation
Data Type
Bit
Charac-
Pointer
ter String
" " P