2 INSTRUCTION TABLES
2.1 How to Read Instruction Tables
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2
2
INSTRUCTION TABLES
2.1
How to Read Instruction Tables
The instruction tables found from Page 16 Module Dedicated Instruction to Page 28 SFC Control Instruction have been made
according to the following format:
Description
Classifies instructions by application.
Indicates the instructions used in a program.
Indicates the arguments of the instruction.
Indicates the processing details of each instruction.
Details of executing condition of each instruction are as follows:
Indicates the execution target module of each instruction. For details of the icons, refer to Chapter Page 31 HOW TO READ
Indicates the references on which the instructions are explained.
Symbol
Name
Description
(s), (s1)
Source
Stores data before operation.
(d), (d1)
Destination
Indicates the destination of data after operation.
n, n1
Specifies the number of devices and the number of transfers.
(Jn*)
Specifies the network number.
(Un*)
Specifies the start I/O number of a module.
Symbol
Executing condition
Indicates an 'executed while ON' type instruction that is executed only while the precondition is ON. When
the precondition is OFF, the instruction is not executed and does not perform processing.
Indicates an 'executed once at ON' type instruction that is executed only at the rising pulse (OFF
ON) of
the precondition of the instruction.
Ò
Ó
Ô
Õ
Ö
×
Ø
Summary of Contents for MELSEC System Q
Page 1: ...MELSEC Q L Structured Programming Manual Special Instructions ...
Page 2: ......
Page 307: ...10 SFC CONTROL INSTRUCTION 10 2 SFC Transition Condition Comment Read 305 10 MEMO ...
Page 309: ...I 307 MEMO ...
Page 315: ......