Library manual M238 system functions | 2 MB - BERGER - POSITEC

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M238 System Functions 2.1 M238 Read Functions Overview This section describes the read functions included in the M238 PLCSystem library. In many cases, similar information returned by these functions can also be obtained through System Variables (see page 11). System Variables are common across the control platforms, and therefore it is recommended to use them where possible for the portability of your applications. The information contained in the System Variables is often similar, though not always exactly the same as that returned by the functions. If you are replacing these functions in your program to favor the use of System Variables, be sure to understand the differences in the information offered. The following function descriptions indicate when a System Variable is available for similar information. What’s in this Section? This section contains the following topics: Topic Page GetBatteryLevel: Returns Remaining Power Charge of the Battery 25 GetBootProjectStatus: Returns the Boot Project Status 26 GetEventsNumber: Returns the Number of External Events Detected 27 GetFirmwareVersion: Returns Information About the Firmware, the Boot and the Coprocessor Versions 28 GetHardwareVersion: Returns the Hardware Version 30 GetLastStopCause: Returns the Cause Last Stop 31 GetLastStopTime: Returns the Date and Time of the Last Detected Stop 32 GetLocalIOStatus: Returns the Embedded I/O Status 33 GetPlcFault: Returns Detected Errors on the Controller I/O 35 GetRightBusStatus: Returns the Status of the Expansion Bus 36 GetSerialNumber: Returns the Serial Number of the Controller 40 GetShortCutStatus: Returns the Short-Circuit Status on Embedded Outputs 41 IsFirstMastColdCycle: Indicates if Cycle is the First MAST Cold Start Cycle 42 IsFirstMastCycle: Indicates if Cycle is the First MAST Cycle 43 IsFirstMastWarmCycle: Indicates if Cycle is the First MAST Warm Start Cycle 45 24 EIO0000000364 04/2012
GetBatteryLevel: Returns Remaining Power Charge of the Battery M238 System Functions Function Description This function returns the remaining power charge of the external backup battery (in percent). For more information about internal and external batteries, refer to the M238 Hardware Guide (see M238 Logic Controller, Hardware Guide). NOTE: The similar information is also available through the System Variable PLC_R.i_wBatteryStatus (see page 16) Graphical Representation IL and ST Representation To see the general representation in IL or ST language, refer to the chapter Function and Function Block Representation (see page 71). I/O Variables Description The following table describes the output variable: Output Type Comment GetBatteryLevel WORD Percentage of charge remaining in the battery. Range: 0..100: 100%= 3.5 V 50% = 2.75 V 0%= 2 V Flashing thresholds of the Batt LED: 100%= always OFF 50%= periodic flashing 0%= always ON EIO0000000364 04/2012 25
Page 1 and 2: EIO0000000364.06 Modicon M238 Logic
Page 3 and 4: Table of Contents Safety Informatio
Page 5 and 6: Important Information NOTICE Safety
Page 7 and 8: At a Glance Document Scope Validity
Page 9 and 10: Overview Modicon M238 Logic Control
Page 11 and 12: Understanding System Variables Intr
Page 13 and 14: Using System Variables Introduction
Page 15 and 16: 1.2 PLC_R and PLC_W Structures Over
Page 17 and 18: %MW Var Name Type Comment 60024 i_w
Page 19 and 20: 1.3 SERIAL_R and SERIAL_W Structure
Page 21 and 22: SERIAL_W[0..1]: Serial Line Read /
Page 23: Overview Modicon M238 Logic Control
Page 27 and 28: GetEventsNumber: Returns the Number
Page 29 and 30: Example M238 System Functions This
Page 31 and 32: GetLastStopCause: Returns the Cause
Page 33 and 34: GetLocalIOStatus: Returns the Embed
Page 35 and 36: GetPlcFault: Returns Detected Error
Page 37 and 38: M238 System Functions I/O Expansion
Page 39 and 40: Example M238 System Functions To ob
Page 41 and 42: M238 System Functions GetShortCutSt
Page 43 and 44: IsFirstMastCycle: Indicates if Cycl
Page 45 and 46: M238 System Functions IsFirstMastWa
Page 47 and 48: InhibitBatLowLed: Disables or Re-en
Page 49 and 50: SetRTCDrift: Adjust the Real Time C
Page 53 and 54: PLC_R_STATUS: Controller Status Cod
Page 55 and 56: PLC_R_BOOT_PROJECT_STATUS: Boot Pro
Page 57 and 58: M238 PLC System Library Data Types
Page 59 and 60: 3.2 System Functions Data Types Ove
Page 67 and 68: HOUR: SetRTCDrift Function Hour Par
Page 69 and 70: Modicon M238 Logic Controller EIO00
Page 73 and 74: How to Use a Function or a Function
Page 75 and 76:
Function and Function Block Represe
Page 77 and 78:
How to Use a Function or a Function
Page 79 and 80:
Function and Function Block Represe
Page 81 and 82:
1-phase counter 2-phase counter BOO
Page 83 and 84:
expansion bus E Glossary The expans
Page 85 and 86:
Modbus NEMA PLC PLI POU PTO M The M
Page 87 and 88:
U unlocated variable An unlocated v
Page 89 and 90:
Modicon M238 Logic Controller Index
Page 91 and 92:
System Variable PLC_R, 16 PLC_W, 18
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Library manual M238 system functions | 2 MB - BERGER - POSITEC

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