How To Read Instruction Tables - Mitsubishi Electric M800VW Series Programming Manual

M800V/M80V Series PLC Programming Manual (1/2)
6 Explanation of Instructions and Functions

6.10 How to Read Instruction Tables

6.10 How to Read Instruction Tables
The basic instructions and function instructions are explained as follows.
Instruction symbol is displayed
D+, D+P, D-, D-P
Setting
data
X Y M
S1
S2
D
"T" is representing T, ST, and C.
A circle is placed for the device that can be
used with the D+, D- instruction. A triangle
is placed when there is a restriction in use.
instruction
symbol
D+, D-
D+P, D-P
Setting data
The functions first, then execution conditions, then program examples are described on the following pages.
IB-1501667-B
BIN32-bit addition and subtraction (Storage destination device independent type)
Usable device
Bit device
L F B SB T SM V
Execution
condition
Execution condition and ladder display of D+ / D- instructions are shown below.
Execution condition
Always excutes
Signs in the explanation
page
Augend/minuend data or head No. of the device where
S1
augend/miunend data is stored
Addend/subtrahend data or head No. of the device where
S2
addend/subtrahend data is stored
Head No. of the device to store addition/subtraction result
D
Explanation of the setting data and data type for each instruction is provided.
Outline of instruction is displayed
Word device
T C D R/ZR W SW SD
A circle is placed when digit designa-
tion is possible for the bit device.
A circle is placed for the instruction
where index (Z device) can be used.
Command
Command
Executes once at
Executes at ON
No sign
Details
120
Digit
desig-
Index
Constant Pointer
nation
Z K H P
indicates D+ / D-
S1 S2 D
P S1 S2 D
Executes once at
ON OFF
Data type
BIN 32 bits