snap ethernet-based i/o units protocols and programming guide

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CHAPTER 3: USING THE SNAP ETHERNET I/O DRIVER TOOLKIT Serial Module Configuration Methods Use the following methods to read and write information in the serial module configuration area of the memory map. For more information, see “Serial Module Configuration—Read/Write” on page 111. Return values are shown on page 61. Streaming Methods Read Methods Description GetSerialModuleConfigurationEx [in] long nSerialPort [out] O22_SIOMM_SerialModuleConfigArea pConfigData Use the following methods to read and write information in the stream configuration and data areas of the memory map. For more information, see “Streaming Configuration—Read/Write” on page 118 and “Streaming—Read Only” on page 134. For information on receiving and processing stream packets, see the General Instructions on page 48 and also see page 36. 72 SNAP Ethernet-Based I/O Units Protocols and Programming Guide Retrieves the configuration for the given serial port. Write Methods Description SetSerialModuleConfigurationEx [in] long nSerialPort [in] O22_SIOMM_SerialModuleConfigArea pConfigData Sets the configuration for the given serial port. Read Methods Description GetStreamConfiguration [out] long pnOnFlag [out] long pnIntervalMS [out] long pnPort [out] long pnIoMirroringEnabled [out] long pnStartAddress [out] long pnDataSize GetStreamTarget [in] long nTarget [out] long pnIpAddressArg GetStreamReadArea [in] f_array fAnalogValues [in] l_array nDigPointFeature [out] long pnStatePts63to32 [out] long pnStatePts31to0 [out] long pnOnLatchStatePts63to32 [out] long pnOnLatchStatePts31to0 [out] long pnOffLatchStatePts63to32 [out] long pnOffLatchStatePts31to0 [out] long pnActiveCountersPts63to32 [out] long pnActiveCountersPts31to0 GetStreamReadAreaEx [out] O22_SIOMM_StreamStandardBlock pData Retrieves current streaming configuration information. Also see GetStreamTarget bellow. Retrieves the IP address for the given target. There are eight possible targets. Reads the stream data area. This is an excellent function for reading all the basic I/O point information in one method call. Same as GetStreamReadArea, except this method uses a structure.
CHAPTER 3: USING THE SNAP ETHERNET I/O DRIVER TOOLKIT Write Methods Description SetStreamConfiguration [in] long nOnFlag [in] long nIntervalMS [in] long nPort [in] long nIoMirroringEnabled [in] long nStartAddress [in] long nDataSize SetStreamTarget [in] long nTarget [in] BSTR bstrIpAddressArg Return values are shown on page 61. Scratch Pad Read/Write Methods Use the following methods to read or write data in the Scratch Pad area of the brain. SNAP Ultimate brains contain all Scratch Pad areas; SNAP Ethernet brains contain only Scratch Pad bits; SNAP Simple I/O brains do not have any Scratch Pad areas. For more information about the Scratch Pad area of the memory map, see page 129. Note that some methods differ for Active X and C++. GetScratchPadBitArea [out] long pnBits63to32 [out] long pnBits31to0 Sets streaming configuration information. Also see SetStreamTarget below. Sets the IP address for the given target. There are eight possible targets. Read Methods Description GetScratchPadIntegerArea (ActiveX only) [in] long nStartIndex [out] O22_SIOMM_ScratchPadIntegerBlock pBlock GetScratchPadIntegerArea (C++ only) [in] long nStartIndex [in] long nLength [out] l_array pnData GetScratchPadFloatArea (ActiveX only) [in] long nStartIndex [out] O22_SIOMM_ScratchPadFloatBlock pBlock GetScratchPadFloatArea (C++ only) [in] long nStartIndex [in] long nLength [out] f_array * pfData GetScratchPadStringArea (ActiveX only) [in] long nStartIndex [out] O22_SIOMM_ScratchPadStringBlock pBlock GetScratchPadStringArea (C++ only) [in] long nStartIndex [in] long nLength, [out] SIOMM_ScratchPadString pStringData Reads the state of the Scratch Pad bit area. Reads a block of 256 integers from the Scratch Pad integer area. Reads an array of up to 256 integers from the Scratch Pad integer area. nLength must be between 1 and 256. Reads a block of 256 floats from the Scratch Pad float area. Reads an array of up to 256 floats from the Scratch Pad float area. nLength must be between 1 and 256. Reads a block of 8 strings from the Scratch Pad string area. Reads a block of up to 8 strings from the Scratch Pad string area. nLength must be between 1 and 8. SNAP Ethernet-Based I/O Units Protocols and Programming Guide 73
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SNAP ETHERNET-BASED I/O UNITS PROTO
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Table of Contents Chapter 1: Introd
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Non-velocity Algorithms............
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Disconnecting......................
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Data Logging Configuration—Read/W
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Chapter 1 Introduction CHAPTER 1 We
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About this Guide CHAPTER 1: INTRODU
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For Help CHAPTER 1: INTRODUCTION If
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FEATURE CHAPTER 1: INTRODUCTION Ema
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CHAPTER 1: INTRODUCTION This task C
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CHAPTER 2 Chapter 2 Overview of Pro
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Referencing SNAP I/O Points CHAPTER
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Analog and Digital Systems (N Brain
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Digital-Only Systems The following
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I/O Point Types CHAPTER 2: OVERVIEW
Page 31 and 32: CHAPTER 2: OVERVIEW OF PROGRAMMING
Page 33 and 34: Watchdog (Digital and Analog Points
Page 45 and 46: Streaming Data CHAPTER 2: OVERVIEW
Page 47 and 48: Logging Data Area Number of Bytes I
Page 49 and 50: Using PID Loops What is a PID? CHAP
Page 51 and 52: Equations Common to All Algorithms
Page 55 and 56: CHAPTER 3 Chapter 3 Using the SNAP
Page 57 and 58: CHAPTER 3: USING THE SNAP ETHERNET
Page 63 and 64: Environment Visual Basic 6 Internet
Page 65 and 66: MemMap Example Code CHAPTER 3: USIN
Page 71 and 72: Return Values CHAPTER 3: USING THE
Page 73 and 74: IsOpenDone V Close V Return Values
Page 75 and 76: Digital Point Methods CHAPTER 3: US
Page 77 and 78: SetDigBankOnMask V [in] long nPts63
Page 79 and 80: Analog Bank Methods CHAPTER 3: USIN
Page 81: GetStatusWatchdogTime [out] long pn
Page 87 and 88: GetLastStreamStandardBlock (ActiveX
Page 89 and 90: CHAPTER 4 Chapter 4 Using the IEEE
Page 91 and 92: CHAPTER 4: USING THE IEEE 1394-BASE
Page 93 and 94: Bytes 0-3 Bytes 4-7 Bytes 8-11 Byte
Page 95 and 96: Bytes 0-3 Bytes 4-7 Bytes 8-11 The
Page 97 and 98: Bytes 0-3 Bytes 4-7 Bytes 8-11 Byte
Page 99 and 100: Read and clear latches for individu
Page 101 and 102: Scaling CHAPTER 4: USING THE IEEE 1
Page 103 and 104: Read and Write Packet Structure Par
Page 109 and 110: CHAPTER 5 Chapter 5 Advanced Modbus
Page 111 and 112: CHAPTER 5: ADVANCED MODBUS PROGRAMM
Page 113 and 114: APPENDIX A Appendix A SNAP Ethernet
Page 115 and 116: Status Area Read—Read Only This i
Page 117 and 118: Date and Time Configuration—Read/
Page 119 and 120: Security Configuration—Read/Write
Page 121 and 122: Serial Module Configuration—Read/
Page 123 and 124: Wiegand Serial Module Configuration
Page 125 and 126: SNMP Configuration—Read/Write (Do
Page 127 and 128: Starting Address Length Type Descri
Page 129 and 130: Starting Address Length Type Descri
Page 131 and 132: Digital Point Read—Read Only NOTE
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Analog Point Read—Read Only See
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Analog and Digital Point Configurat
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Digital Events and Reactions—Read
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Starting Address Length Type Descri
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Analog Point Calculation and Set—
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Analog Read and Clear/Restart—Rea
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Serial Event Configuration—Read/W
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Data Log—Read/Write (Does not app
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Appendix B Table of Offsets Introdu
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Module Point (Decimal) Point (Hex)
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Index A access, setting up SNMP sec
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error codes IEEE 1394-based protoco
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O off-latch, 20 offset, 24 IEEE 139
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