Function blocks
Function blocks for TwinSAFE logic components 75
RESET
The FB TWOHAND module assumes the RESET state if no further error is pending after an
error has occurred and the ErrAck input of the corresponding group is set to TRUE.
The outputs assume the following values:
Error=0
TwoHandOut=0
1BUTTON
If all active inputs of the first input group are TRUE and at least one active input of the
second input group is FALSE, the module FB TWOHAND assumes the 1BUTTON state. The
FB TWOHAND module only assumes the 1BUTTON state from the SAFE state.
The outputs assume the following values:
Error=0
TwoHandOut=0
2BUTTON
If all active inputs of the second input group are TRUE and at least one active input of the
first input group is FALSE, the module FB TWOHAND assumes the 2BUTTON state. The FB
TWOHAND module only assumes the 2BUTTON state from the SAFE state.
The outputs assume the following values:
Error=0
TwoHandOut=0
RELEASE
If at least one active input is FALSE, the FB TWOHAND module assumes the RELEASE
state. If all active inputs are FALSE, the FB TWOHAND module exits the RELEASE state.
The outputs assume the following values:
Error=0
TwoHandOut=0