Beckhoff EP1918, Operating Instruction, Page: 42 / 56

Operation
EP1918 42 Version: 1.1.0
4.5.6 Cycle time of the safety project
The execution time of the TwinSAFE logic can be read from the CoE objects listed below. To determine the
cycle time, it has to be multiplied with 1.25, because this is the factor used internally for generating a delay
time before the next cycle.
Index FEA0
hex
: CTRL Diag Data
Index Name Meaning Flags Default
FEA0:09 Actual Safety Control
Task Execution Time
Current execution time of the TwinSAFE logic with a
logic state of 1 (RUN)
Cycle time = 1.25 * value
(average value of 64 cycles) RO 0
hex
FEA0:0A Min Safety Control
Task Execution Time
Minimum execution time of the TwinSAFE logic with a
logic state of 1 (RUN)
Cycle time = 1.25 * value RO 0
hex
FEA0:0B Max Safety Control
Task Execution Time
Maximum execution time of the TwinSAFE logic with a
logic state of 1 (RUN)
Cycle time = 1.25 * value RO 0
hex
FEA0:15 Actual Safety Control
Task Execution Time
Current execution time of the TwinSAFE logic with a
logic state of <> 1
Cycle time = 1.25 * value
(average value of 64 cycles) RO 0
hex
FEA0:16 Min Safety Control
Task Execution Time
Minimum execution time of the TwinSAFE logic with a
logic state of <> 1
Cycle time = 1.25 * value RO 0
hex
FEA0:17 Max Safety Control
Task Execution Time
Maximum execution time of the TwinSAFE logic with a
logic state of <> 1
Cycle time = 1.25 * value RO 0
hex
Resetting the values
The max. and min. values can be reset by writing a value to the CoE object 0x1C32:08.
4.5.7 Diag History tab
All errors occurring within the TwinSAFE components are stored in their diag history. The diag history can be
viewed by selecting the corresponding TwinSAFE component in the I/O tree structure and then selecting the
Diag History tab. Use the Update History button to fetch the current data from the TwinSAFE component.
Errors within the logic, the function blocks, the connections or the component itself are stored with a
corresponding time stamp.
Fig. 30: Diag history
Use the Advanced… button to open the advanced settings. Here, the user can customize the behavior of the
diag history.