GetSysInfo

 Function 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. - Get system information.

Inputs

Input	Data Type	Range	Unit	Default	Description
INFO	DINT				Identifier of the requested information.

Outputs

Output	Data Type	Range	Unit	Description
Q	DINT			Value of the requested information or 0 (zero) if error.

Remarks

The INFO parameter can be one of these predefined values:

Value	Definition
_SYSINFO_APPSTAMP	Compiling date stamp of the application.
_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_CHANGE_CYCLE	Indicates a cycle just after an Online Change Applies to downloading PLC code changes while the applicaiton is running.
_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_CYCLECOUNT	Counter of cycles.
_SYSINFO_CYCLEMAX_MICROS	Maximum detected cycle time in micro-seconds.
_SYSINFO_CYCLEMAX_MS	Maximum detected cycle time in milliseconds.
_SYSINFO_CYCLEOVERFLOWS	Number of detected cycle time overflows.
_SYSINFO_CYCLESTAMP_MS	Timestamp A timestamp is a sequence of characters, denoting the date and/or time at which a certain event occurred 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_CYCLETIME_MICROS	Duration of the previous cycle in micro-seconds.
_SYSINFO_CYCLETIME_MS	Duration of the previous cycle in milliseconds.
_SYSINFO_DATACRC	CRC of the application symbols.
_SYSINFO_DBSIZE	Space used in RAM (bytes).
_SYSINFO_DEMOAPP	Non zero if the application was compiled in DEMO mode.
_SYSINFO_ELAPSED	Seconds elapsed since startup.
_SYSINFO_FREEHEAP	Available space in memory heap (bytes).
_SYSINFO_NBBREAKPOINTS	Number of installed breakpoints.
_SYSINFO_NBLOCKED	Number of locked variables.
_SYSINFO_TRIGGER_MICROS	Programmed cycle time in micro-seconds.
_SYSINFO_TRIGGER_MS	Programmed cycle time in milliseconds.
_SYSINFO_WARMSTART	Non zero if RETAIN variables were loaded at the last start.

FBD Language Example

FFLD Language Example

• In the FFLD "Free Form Ladder Diagram" 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.
• The function is executed only if EN is TRUE.
• ENO keeps the same value as EN.

IL Language Example

• In the IL "Instruction List" This is a low-level language and resembles assembly Language, the input must be loaded in the current result before calling the function.

Op1: LD "Ladder diagram"
Ladder logic is a method of drawing electrical logic schematics. It is now a very popular graphical language for programming Programmable Logic Controllers (PLCs). It was originally invented to describe logic made from relays. The name is based on the observation that programs in this language resemble ladders, with two vertical "rails" and a series of horizontal "rungs" between them  INFO
     GETSYSINFO
     ST  Q

ST Language Example

Q := GETSYSINFO (INFO);