GSK 218M - Sub（Binary Subtraction

GSK218M CNC System Connection and PLC Manual
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5.26 SUB（binary subtraction）
Function:
This instruction executes the subtraction operation in the binary format of 1 or 2 bytes. In the
operation result register, operation data is set besides the numberical data representing the
operation. A required number of bytes is necessary to store the subtrahend, and the result.
Format:
Control conditions:
Reset (RST)：
RST=0： Release reset.
RST=1： Reset. W=0.
Activation instruction (ACT)：
ACT＝0 ： Do not execute SUB. W does not change.
ACT＝1 ： Execute SUB.
Parameter:
Length ：Specifies data length(1 or 2 bytes) and the format for the subtrahend(constant or
address).
S1 ： Address containing the minend.
S2 ： Specification determines the Length.
S3 ： Specifies the address to contain the result of operation.
SUB Length
Format
specification
S1
Menuend
address
S2
Subtrahend
address or
constant
S3
Operation
output
address
O O
Data length specification
1：1byte length data
2：2 bytes length data
Format
specification
0：Constant
1：Address
RST
ACT
（W）