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

More documents

Recommendations

Info

CHAPTER 3: USING THE SNAP ETHERNET I/O DRIVER TOOLKIT Block Helper Methods Description SetLongAtBlockIndex [in] by_array byBlock [in] short nIndex [in] long nValue SetFloatAtBlockIndex [in] by_array byBlock [in] short nIndex [in] float fValue Return values are shown on page 61. OptoSnapIoStream Interface For more information on configuring a brain’s streaming feature, see “Streaming Configuration—Read/Write” on page 118 and “Streaming Methods” on page 72. For more information about streaming, see “Streaming Data” on page 35. Stream Methods and Events Use the following methods and events for listening to and processing stream packets. OpenStreaming [in] long nType [in] long nLength [in] long nPort 76 SNAP Ethernet-Based I/O Units Protocols and Programming Guide Sets a long value at the given index in the given byte array. Sets a float value at the given index in the given byte array. Methods Description Initializes the stream listener. nType specifies the type of stream being sent by the brains: 1 = standard, 2 = custom. All brains being listened to must be using the same type of streaming. nLength is the length, in bytes, of a custom stream. Length is ignored for standard streams. nPort is the port the streams are being sent to. CloseStreaming Stops all listening and closes the port StartStreamListening [in] string bstrIpAddressArg [in] long nTimeoutMS StopStreamListening [in] string bstrIpAddressArg Starts listening for streams from the given IP address, bstrIpAddressArg. Use multiple calls to this function to listen to multiple brains. The timeout value, nTimeoutMS, in milliseconds, is used to generate timeout events if a packet from the given IP address has been received in the timeout period. Different brains can have different timeout values. Stops listening to the given IP address.
GetLastStreamStandardBlock (ActiveX only) [out] long pnIpAddressArg [out] f_array fAnalogValues [out] 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 CHAPTER 3: USING THE SNAP ETHERNET I/O DRIVER TOOLKIT GetLastStreamStandardBlockEx [out] O22_SIOMM_StreamStandardBlock pData GetLastStreamCustomBlockEx [out] O22_SIOMM_StreamCustomBlock pData SetCallbackFunctions (C++ Only) [in] STREAM_CALLBACK_PROC pStartThreadCallbackFunc [in] void * pStartThreadParam [in] STREAM_EVENT_CALLBACK_PROC pStreamEventCallbackFunc [in] void * pStreamEventParam, [in] STREAM_CALLBACK_PROC pStopThreadCallbackFunc, [in] void * pStopThreadParam Methods Description Retrieves the last standard stream block that was received. The IP address of the brain that sent the packet is in the pnIpAddressArg parameter. The other parameters contain the analog and digital point values. This method should only be called if the standard type was set in the OptoStreaming() method. This method should be called immediately after receiving an OnStreamEvent ActiveX event (see below). Retrieves the last standard stream block that was received. The IP address of the brain that sent the packet is in the pnIpAddressArg field. The other parameters contain the analog and digital point value. This method should only be called if the standard type was set in the OptoStreaming() method. ActiveX: This method should be called immediately after receiving an OnStreamEvent event . C++: This method should be called immediately after receiving a packet event via the pStreamEventCallbackFunc callback function set in StartStreamListening(). Retrieves the last custom stream block that was received. The IP address of the brain that sent the packet is in the pnIpAddressArg field. The other parameters contain binary data and the starting memory map address of the data. This method should only be called if the custom type was set in the OptoStreaming() method. ActiveX: This method should be called immediately after receiving an OnStreamEvent event . C++: This method should be called immediately after receiving a packet event via the pStreamEventCallbackFunc callback function set in StartStreamListening(). Sets the three callback functions for the C++ class. The pStreamEventCallbackFunc callback is called whenever a stream packet of interest is received. See the comments for the method in the O22SIOST.H and O22SIOST.CPP files for more information. SNAP Ethernet-Based I/O Units Protocols and Programming Guide 77
Page 1 and 2:
SNAP ETHERNET-BASED I/O UNITS PROTO
Page 3 and 4:
Table of Contents Chapter 1: Introd
Page 5 and 6:
Non-velocity Algorithms............
Page 7 and 8:
Disconnecting......................
Page 9 and 10:
Data Logging Configuration—Read/W
Page 11 and 12:
Chapter 1 Introduction CHAPTER 1 We
Page 13 and 14:
About this Guide CHAPTER 1: INTRODU
Page 15 and 16:
For Help CHAPTER 1: INTRODUCTION If
Page 17 and 18:
FEATURE CHAPTER 1: INTRODUCTION Ema
Page 19 and 20:
CHAPTER 1: INTRODUCTION This task C
Page 21 and 22:
CHAPTER 2 Chapter 2 Overview of Pro
Page 23 and 24:
Referencing SNAP I/O Points CHAPTER
Page 25 and 26:
Analog and Digital Systems (N Brain
Page 27 and 28:
Digital-Only Systems The following
Page 29 and 30:
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 35 and 36: CHAPTER 2: OVERVIEW OF PROGRAMMING
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 and 82: GetStatusWatchdogTime [out] long pn
Page 85: CHAPTER 3: USING THE SNAP ETHERNET
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
Page 133 and 134: Analog Point Read—Read Only See
Page 135 and 136: Analog and Digital Point Configurat
Page 137 and 138:
Digital Events and Reactions—Read
Page 139 and 140:
Starting Address Length Type Descri
Page 141 and 142:
Analog Point Calculation and Set—
Page 143 and 144:
Analog Read and Clear/Restart—Rea
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Serial Event Configuration—Read/W
Page 151 and 152:
Page 153 and 154:
Page 155 and 156:
Page 157 and 158:
Data Log—Read/Write (Does not app
Page 159 and 160:
Appendix B Table of Offsets Introdu
Page 161 and 162:
Module Point (Decimal) Point (Hex)
Page 163 and 164:
Index A access, setting up SNMP sec
Page 165 and 166:
error codes IEEE 1394-based protoco
Page 167 and 168:
O off-latch, 20 offset, 24 IEEE 139
show all

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

Create successful ePaper yourself

Delete template?

Save as template?