(IN1)
Digital safety
inputs
(IN3)
Input from
gateway
(OUT3)
Output to
gateway
CPU
logic,
routing
Fast Shut Off
(IN4)
Input
from SLMP,
Modbus® TCP
(IN5)
Input from
Flexi Loop
(OUT5)
Output to
Flexi Loop
(OUT4)
Output
to SLMP,
Modbus® TCP
(OUT1)
Digital safety
outputs
(OUT2)
Test outputs
Figure 51: Safety controller response times
Complementary information
The Fast Shut Off function only has an effect on the inputs and outputs of the same
module. Response times of 4.5 ms can be achieved using fast shut off.
13.2.1
Calculating the response time
Overview
You need to consider each signal path separately when calculating the response time.
Important information
NOTE
The calculation applies exclusively to the safety controller. You need to separately
consider the response times of sensors and actuators.
Approach
b
Use the following table to calculate the response time of the connected signal
paths of the safety controller.
Table 147: Calculating the maximum response time
Components of
the calculation
Description
Value [ms]
1. Inputs
Response time of the
observed input in the
signal path
IN1, IN3, IN4 or IN5
•
"IN1 - Response time of safety
capable inputs (I)", page 133
•
"IN3 … IN5 - Response time for
processing of incoming process
data", page 133
13
TECHNICAL DATA
132
O P E R A T I N G I N S T R U C T I O N S | Flexi Compact
8024589/2020-11-10 | SICK
Subject to change without notice