Maple Systems MAPware-7000 - Manual (Page 144)

MAPware-7000 Ladder Logic Guide 136
1010-1041 rev. 00
Instruction 89- Step Sequence Initialize
Expression:
Space Requirement: 1 line x 3 column Location Requirement: Middle
Function:
When the input is ON, n devices starting with Operand A are reset to OFF, and A is set to ON.
This instruction is used to initialize a series of step sequences. The step sequence is useful to
describe a sequential operation.
Execution Condition:
Input Operation Output
OFF No execution OFF
ON Execution at the rising edge of the input ON
Operand:
Coil or Bit Register Constant Index
Name X Y B S T. C. M
X
W Y
W B
W S
W
T C D I J K
M
W
n
Size of Step
Sequence
1-64
A Start Device √
Example:
When B020 changes from OFF to ON, B400 is set to ON and the next 9 devices (B401 to B409)
are reset to OFF.
This instruction initializes a series of step sequence, 10 devices starting with B400.