Maple Systems MAPware-7000 - Manual (Page 27)

19 MAPware-7000 Ladder Logic Guide
1010-1041 rev. 00
Instruction 6- Forced Coil
Expression:
Space Requirement: 1 line x 1 column Location Requirement: Right rail
Function:
Regardless of the input state, the state of device A is retained.
Execution Condition:
Input Operation Output
OFF No operation ---
ON No operation ---
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
A Device √ √ √
Example:
Timing Diagram:
Device Y0005 retains the preceding state regardless of the devices X0000 state .
Note:
The forced coil is a debugging function. The state of a forced coil device can be set ON or OFF by
the programming tool.