Maple Systems MAPware-7000 User Manual
Page 108
MAPware-7000 Ladder Logic Guide
100
1010-1041 rev. 00
Example:
9 devices starting with B200 (B200 to B208) is specified as a shift register.
When B010 is OFF, the data of the shift register is reset to 0. (B200 to B208 are reset to OFF).
The carry flag (CF = S976) is also reset to OFF.
While B010 is ON the following operation is enabled:
-
When X0011 is ON (shift left), the data of the shift register is shifted 1 bit to the upper
address direction when X009 is changed from OFF to ON. At the same time, the state of
X008 is stored in the leading bit (B200). The output (B012) indicates the state of the
highest bit (B208).
-
When X0011 is OFF (shift right), the data of the shift register is shifted 1 bit to the lower
address direction when X009 is changed from OFF to ON. At the same time, the state of
X008 is stored in the highest bit (B208). The output (B012) indicates the state of the
lowest bit (B200).
The figure below shows an operation example.
(When X0011 is ON and X009 is changed from OFF to ON).
(When X0011 is OFF and X009 is changed from OFF to ON
)