Cutler-Hammer D320 PLC, User Manual

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100
D320 PLC User's Manual
Instruction
Mnemonic Increment Range
Bit
■ Word
INC
DINC
INCB
DINCB Increment (INC, DINC)
BCD increment (INCB, DINCB)
■
Double words
Ladder
D = D + 1: Decimal number increment
D = D + 1: BCD increment
Description
1. INC and DINC increase D in decimal by 1 when the input is On.
2. INCB and DINCB increase D in BCD (Binary Coded Decimal) by 1.
3. INC and INCB are word instructions for processing 16 bit data.
4. DINC and DINCB are double word instructions for processing 32 bit data.
Example
Program Expression Time Chart
INC
D =
R
R
INCB
D =
0
1
2
9
10
11
Max $FFFF $9999
...... 0 0 0 0 0 ….. 0 0 0 0 0
...... 0 0 0 0 1 ….. 0 0 0 0 1
Input (R0.1) M0005 (decimal) M0008(BCD)
...... 0 0 0 1 0 ….. 0 0 0 1 0
...... 0 1 0 0 1 ….. 0 1 0 0 1
...... 0 1 0 1 0 ….. 1 0 0 0 0
...... 0 1 0 1 1 ….. 1 0 0 0 1
INC
D = M0005
INCB
D = M0008
R000.1
R