11 Safety Function
11.4 Functional Safety Functions
11-97
HW1485509
HW1485509
If the safety fieldbus signal and the safety logic circuit signal are included,
up to 144 points can be used from one safety circuit board.
To condition files, as many safety signals as desired can be allocated
within the possible signal points, thus signals are flexibly used even if the
board has small numbers of signal points.
Followings are the safety signal available for the collaborative operation
function.
11.4.11.1 Allocation of Safety Logic Circuit Extended Signal
The safety logic circuit extended signal can be used as the input signal or
the output signal of the functional safety. The number of the signal points
are 64 input points and 64 output points. These signals are shared by the
whole system and can be used from any board of the safety circuit board.
Regarding the FS-OUT (safety logic circuit functional safety output signal),
allocation of the signal and the board must be performed in advance.
To allocate Safety Logic Circuit Extended Signal, refer to chapter 11.3.4.5.
11.4.11.2 Allocation of Safety Fieldbus Signal
The safety fieldbus function is not a functional safety function but an
optional function. When it is valid, the safety fieldbus signal can be used in
the functional safety function.
Safety fieldbus signal transmits/receives the safety-guaranteed “safety
data” through the fieldbus communication path. It has 64 input signal
points and 64 output signal points.
These signals are commonly used in the whole system and thus they can
be referred from both machine safety board and functional safety board.
In this consequence, “SAFETY SIG. BOARD ALLOC” function is prepared
to define which signal is to be used in which board.
To allocate Safety Fieldbus signal, refer to chapter 11.3.4.4.
11.4.11.3 Enable Condition of Safety Functions Setting
The setting of safety function, it can be enabled/disabled by safety input
signal when Enable Condition is “Signal”.
Judging the safety input signals are explained as following.
The input signal is judged line-by-line.
Signal Signal Point Note
PFL function signal Input：16 points/terminal
Output：16 points/terminal
PFL function signal is connected per PFL
circuit board.
To Next Page
Loading...
