X20(c)SC2212
Data sheet V1.141 X20(c)SC2212 Translation of the original documentation
35
Group: Safety Response Time
Parameter
Description
Default value
Unit
This parameter makes it possible to manually and individually configure the
safety response time for the module.
The parameters for the safety response time are generally set in the same
way for all stations involved in the application. For this reason, these parame-
ters are configured for the SafeLOGIC controller in SafeDESIGNER. For appli-
cation situations in which individual safety functions require optimal response
time behavior, the parameters for the safety response time can be configured
individually on the respective module.
No
-
Manual Configuration
Parameter value
Description
Yes
Data from the module's "Safety Response Time" group is used to calculate the
safety response time for the module's signals.
No
The parameters for the safety response time are taken from the
"Safety Response Time" group on the SafeLOGIC controller.
Safe Data Duration
This parameter specifies the maximum permissible data transmission time be-
tween the SafeLOGIC controller and SafeIO module.
For more information about the actual data transmission time, see section Di-
agnostics and service → Diagnostics tools → Network analyzer → Editor →
Calculation of safety runtime of Automation Help. The cycle time of the safety
application must also be added.
•
Permissible values: 2000 to 10,000,000 μs (corresponds to 2 ms to 10
s)
20000
μs
Additional Tolerated Packet Loss
This parameter specifies the number of additional tolerated lost packets during
data transfer.
•
Permissible values: 0 to 10
0
Packets
Packets per Node Guarding
This parameter specifies the maximum number of packets used for node guard-
ing.
•
Permissible values: 1 to 255
Note
•
The larger the configured value, the greater the amount of asynchro-
nous data traffic.
•
This setting is not critical to safety functionality. The time for safely cut-
ting off actuators is determined independently of this.
5
Packets
Table 22: SafeDESIGNER parameters: Safety Response Time
Group: Module Configuration
Parameter
Description
Default value
Unit
This parameter can be used to switch off automatic testing of the output driver
for all of the module's channels.
No
-
Disable OSSD
Parameter value
Description
Yes-ATTENTION
Automatic testing of the output driver is switched off.
No
Automatic testing of the output driver is enabled.
Table 23: SafeDESIGNER parameters: Module Configuration
Danger!
With "Disable OSSD = Yes-ATTENTION", the module has reduced error detection capabilities and no
longer meets the requirements for SIL 3 per EN 62061:2013 or PL e per EN ISO 13849-1:2015.
In order to meet the requirements for applications up to SIL 2 per EN 62061:2013 or PL d per
EN ISO 13849-1:2015, the user must check the safety function on a daily basis when using type B
output channels.
For type B2 output channels, it is also important to ensure that all of the module's output channels are
simultaneously in a switched-off state for at least 1 s during this test.
On X20SRTxxx modules, each output channel being used must be checked before the first safety
request and every 24 hours. For this check, the corresponding channel must be switched on and off
at least once.