Delta VP3000 Series - Page 389

Chapter 7 Second Development Platform VP3000
380
API Instruction code Operand Function
287–292
FOR※
S
1
, S
2
Floating-point number contact type
comparison OR※
Type
Operand
Bit devices Word devices
16-bit instruction
- -
- -
32-bit instruction (9 steps)
FOR※
Continuous
execution
type
- -
Associated flag: none
X Y M K H KnX KnY KnM T C D
S
1
  
S
2
  
Caution for using operand: ＃ : & | ^
 See the specification of each model for the scope of device’s usage.
Description
 S
1
: source device 1
S
2
: source device 2
 This instruction compares the content in S
1
and S
2
. Take “FOR=” as an example, if the result
is “equal to”, the continuity of the instruction is enabled; if the result is “not equal to”, the
continuity of the instruction is disabled.
 Use FOR※ instruction, users can execute operation directly by inputting floating-point value
(e.g. F1.2) in S
1
, S
2
or storing floating-point value in the register D.
 The instruction is used for direct connection with busbar
API No. 32-bit instruction
Continuity
condition
Discontinuity
condition
287 FOR=
S
1
= S
2
S
1
≠ S
2
288 FOR>
S
1
> S
2
S
1
 S
2
289 FOR<
S
1
< S
2
S
1
 S
2
290 FOR<>
S
1
≠ S
2
S
1
= S
2
291 FOR<=
S
1
 S
2
S
1
> S
2
292 FOR>=
S
1
 S
2
S
1
< S
2
Example
 When both X2 and M30 are ON, or the content in D100 (D101) ≥ F1.234, then M60 = ON.
FOR>= D100 F1.234
X2 M30
M60