Delta VP3000 Series - Page 341

Chapter 7 Second Development Platform VP3000
332
API Instruction code Operand Function
44 D BON P S, D, n
Check specified bit status
Type
Operand
Bit devices Word devices
16-bit instruction (7 steps)
BON
Continuous
execution
type
BONP
Pulse
execution
type
32-bit instruction (13 steps)
DBON
Continuous
execution
type
DBONP
Pulse
execution
type
Associated flag: none
X Y M K H KnX KnY KnM T C D
S
       
D
 
n
    
Caution for using operand
 Valid range of operand n : n = 0–15 (16-bit), n = 0–31 (32-bit)
Description
 S: source device
D: device for storing check result
n: bit number to be checked (numbered from 0)
 The instruction checks the status of designated bit (specified by n) in S and stores the result in
D.
 Operand S uses device F, and they can only use 16-bit instructions.
Example
 When X0 = ON, if the bit15 of D0 is “1”, then M0 = ON; if it’s “0”, then M0 = OFF.
 X0 becomes OFF, M0 remains in its previous status.

X0
BON D0 M0 K15
0000 00011 100 0000
D0
b0
M0=Off
b15
1000 00011 100 0000
D0
b0
M0=On
b15