A function calculates a result according to the current value of its inputs. A function has no internal data and is not linked to declared instances. - Returns system information.
Inputs
INFO : DINT Identifier of the requested information
Outputs
Q : DINT Value of the requested information or 0 if error
Remarks
The INFO parameter can be one of the following predefined values:
| Value | Definition |
|---|---|
_SYSINFO_TRIGGER_MICROS |
programmed cycle time in micro-seconds |
_SYSINFO_TRIGGER_MS |
programmed cycle time in milliseconds |
_SYSINFO_CYCLETIME_MICROS |
duration of the previous cycle in micro-seconds |
_SYSINFO_CYCLETIME_MS |
duration of the previous cycle in milliseconds |
_SYSINFO_CYCLEMAX_MICROS |
maximum detected cycle time in micro-seconds |
_SYSINFO_CYCLEMAX_MS |
maximum detected cycle time in milliseconds |
_SYSINFO_CYCLESTAMP_MS |
time stamp of the current cycle in milliseconds (OEM "Original equipment manufacturer"
A term that refers to containment-based re-branding, namely where one company uses a component of another company within its product, or sells the product of another company under its own brand. OEM refers to the company that originally manufactured the product dependent) |
_SYSINFO_CYCLEOVERFLOWS |
number of detected cycle time overflows |
_SYSINFO_CYCLECOUNT |
counter of cycles |
_SYSINFO_APPSTAMP |
compiling date stamp of the application |
_SYSINFO_CODECRC |
CRC "Cyclic redundancy check"
A CRC is a type of function that takes as input a data stream of any length and produces as output a value of a certain fixed size. The term CRC is often used to denote either the function or the function's output. A CRC can be used as a checksum to detect accidental alteration of data during transmission or storage of the application code. |
_SYSINFO_DATACRC
|
CRC of the application symbols. |
_SYSINFO_FREEHEAP
|
Available space in memory heap (bytes) |
_SYSINFO_DBSIZE
|
Space used in RAM (bytes) |
_SYSINFO_ELAPSED
|
Seconds elapsed since startup |
_SYSINFO_CHANGE_CYCLE
|
Indicates a cycle just after an On Line Change |
_SYSINFO_WARMSTART
|
Non zero if RETAIN variables were loaded at the last start |
_SYSINFO_NBLOCKED
|
Number of locked variables |
_SYSINFO_NBBREAKPOINTS
|
Number of installed breakpoints |
_SYSINFO_BIGENDIAN
|
Non zero if the runtime In computer science, runtime (or run-time) describes the operation of a computer program, the duration of its execution, from beginning to termination (compare compile time).
Within KAS, runtime also refers to the virtual machine that manage the program written in a computer language while it is running processor is big endian |
_SYSINFO_DEMOAPP
|
Non zero if the application was compiled in DEMO mode |
In FFLD language, the operation is executed only if the input rung (EN) is TRUE. The output rung (ENO) keeps the same value as the input rung.
In IL "Instruction list"
This is a low-level language and resembles assembly, the
input must be loaded in the current result before calling the function.
ST Language
Q := GETSYSINFO (INFO);
FBD Language
FFLD Language
(* The function is executed only if EN is TRUE *)
(* ENO keeps the same value as EN *)
