Delta MS300 Series User Manual page 729

Chapter 16 PLC Function ApplicationsMS300
API
ROL
31
D
bit device
X Y M
D
n
Notes on operand usage:
K4 (16-bit) is only valid if the operand D is designated as KnY or
KnM.
n operand n=1 to 16 (16-bit)




P
Word device
K H KnX KnY KnM
＊ ＊
＊ ＊
D: Device to be rotated. n: Number of bits for one rotation.
Rotates the device designated by D to the left n bits.
Generally use this command as a pulse execution type command (ROLP).
When X0 switches OFF to ON, 4 of the 16 bits in D10 specify a left rotation; the
content of the bit indicated with * (see diagram below) is sent to the carry flag
signal M1022.
Left rotation
16-bit command (5 STEP)
ROL
T C D
＊ ＊ ＊
32-bit command (9 STEP)
DROL
Flag signal: M1022
720
Continuous ROLP
execution type execution type
Continuous DROLP
execution type execution type
Carry flag
Pulse
Pulse