Xinje XDH Series User Manual

84
Flag
Name
Function
SM20
Zero
ON: the calculate result is zero
OFF: the calculate result is not zero
SM21
Borrow
ON: the calculate result is over 32767(16bits) or
2147483647(32bits)
OFF: the calculate result is not over 32767(16bits) or
2147483647(32bits)
SM22
Carry
ON: the calculate result is over 32767(16bits) or
2147483647(32bits)
OFF: the calculate result is not over 32767(16bits) or
2147483647(32bits)
 The assignment of the data
The data register of XD, XL series PLC is a single word (16 bits) data register, single word
data only occupy one register which is used to single word instruction. The process range is
decimal –327,68~327,67, or hex 0000~FFFF.
Double words (32 bits) occupy two data registers; the two registers’ address is continuous.
The process range is: decimal -214,748,364,8~214,748,364,7 or hex 00000000~FFFFFFFF.
 The way to represent32 bits instruction
Add letter “D” before16 bits instruction to represent32 bits instruction.
For example:
ADD D0 D2 D4 16 bits instruction
DADD D10 D12 D14 32 bits instruction
※1: It shows the flag bit following the instruction action.
※2: Source operand which won’t change with instruction working
※3: Destinate operand which will change with instruction working
※4: It introduces the instruction’s basic action, using way, applied example, extend function,
note items and so on.
Related flag
Notes
D(NUM)
Single word object instruction
D(NUM+1)
D(NUM)
Double word object instruction
→
S·
D·
→
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Xinje XDH Series Specifications

General

Brand	Xinje
Model	XDH Series
Category	Network Hardware
Language	English