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

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APPENDIX A: SNAP ETHERNET-BASED BRAIN MEMORY MAP Timers—Read/Write (Does not apply to SNAP Simple I/O) See page 33 for information on configuring timers to delay reactions to events. Only the first two timers are shown in the table. Other timers follow the same pattern. Starting Address Length Type Description FFFF F0D4 0000 8 M Timer 0: Digital ON mask that starts the timer FFFF F0D4 0008 8 M Timer 0: Digital OFF mask that starts the timer FFFF F0D4 0010 8 M Timer 0: Scratch Pad ON mask that starts the timer FFFF F0D4 0018 8 M Timer 0: Scratch Pad OFF mask that starts the timer FFFF F0D4 0020 8 M Timer 0: Digital ON mask to be set when the timer expires FFFF F0D4 0028 8 M Timer 0: Digital OFF mask to be set when the timer expires FFFF F0D4 0030 8 M Timer 0: Scratch Pad ON mask to be set when the timer expires FFFF F0D4 0038 8 M Timer 0: Scratch Pad OFF mask to be set when the timer expires FFFF F0D4 0040 4 UI Timer 0: Length of the timer delay, in milliseconds FFFF F0D4 0044 4 -- Reserved FFFF F0D4 0048 4 UI Timer 0: Time remaining until the timer expires, in milliseconds FFFF F0D4 004C 4 UI Timer 0: Timer state. 0 = Timer not set; 1 = Timer set; 2 = Timer is ticking FFFF F0D4 0050 30 -- Pad for alignment FFFF F0D4 0080 8 M Timer 1: Digital ON mask that starts the timer FFFF F0D4 0088 8 M Timer 1: Digital OFF mask that starts the timer FFFF F0D4 0090 8 M Timer 1: Scratch Pad ON mask that starts the timer FFFF F0D4 0098 8 M Timer 1: Scratch Pad OFF mask that starts the timer FFFF F0D4 00A0 8 M Timer 0: Digital ON mask to be set when the timer expires FFFF F0D4 00A8 8 M Timer 0: Digital OFF mask to be set when the timer expires FFFF F0D4 00B0 8 M Timer 0: Scratch Pad ON mask to be set when the timer expires FFFF F0D4 00B8 8 M Timer 0: Scratch Pad OFF mask to be set when the timer expires FFFF F0D4 00C0 8 UI Timer 0: Length of the timer delay, in milliseconds FFFF F0D4 00C4 4 -- Reserved FFFF F0D4 00C8 4 UI Timer 0: Time remaining until the timer expires, in milliseconds FFFF F0D4 00CC 8 UI Timer 0: Timer state. 0 = Timer not set; 1 = Timer set; 2 = Timer is ticking 128 SNAP Ethernet-Based I/O Units Protocols and Programming Guide
Starting Address Length Type Description FFFF F0D4 00D0 30 -- Pad for alignment Last valid address for this area: FFFF F0D4 FFFF Scratch Pad—Read/Write (Other timers follow in order on even 80 hex boundaries.) (Does not apply to SNAP Simple I/O) For SNAP Ethernet brains, only Scratch Pad bits apply. For SNAP Ultimate brains, all addresses apply and the Scratch Pad area is used to share data among devices on the network. Since each Scratch Pad read or write operation is atomic, reads and writes will not interfere with each other. For more information on using the Scratch Pad area, see page 26. NOTE: Scratch Pad strings can be null terminated or can be binary strings with embedded nulls. Length is automatically calculated, but can be written to force a specific length. If the length and the string are written together, the length written is used. Starting Address Length Type Description FFFF F0D8 0000 8 M Current state of Scratch Pad bits (mask). 1 = bit on; 0 = bit off. FFFF F0D8 0400 8 M Set Scratch Pad On mask. 1 = set bit on; 0 = no change. FFFF F0D8 0408 8 M Set Scratch Pad Off mask 1 = set bit off; 0 = no change. FFFF F0D8 1000 4 I Scratch Pad integer element 0. FFFF F0D8 1004 4 I Scratch Pad integer element 1. FFFF F0D8 1008 4 I Scratch Pad integer element 2. (Additional integer elements follow in order on even 4 hex boundaries. Total at this address: 1024. Additional 2048 starting at address FFFF F0DA 0000) FFFF F0D8 1FFC 4 I Scratch Pad integer element 1023. FFFF F0D8 2000 4 F Scratch Pad float element 0. FFFF F0D8 2004 4 F Scratch Pad float element 1. FFFF F0D8 2008 4 F Scratch Pad float element 2. (Additional float elements follow in order on even 4 hex boundaries. Total at this address: 1024. Additional 2048 starting at address FFFF F0DC 0000) FFFF F0D8 2FFC 4 F Scratch Pad float element 1023. FFFF F0D8 3000 2 UI Scratch Pad string element 0: Length (integer). If length is not written here, it is automatically calculated by counting to the first null. FFFF F0D8 3002 80 S-PL Scratch Pad string element 0: String SNAP Ethernet-Based I/O Units Protocols and Programming Guide 129
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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
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CHAPTER 2: OVERVIEW OF PROGRAMMING
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Watchdog (Digital and Analog Points
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Streaming Data CHAPTER 2: OVERVIEW
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Logging Data Area Number of Bytes I
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Using PID Loops What is a PID? CHAP
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Equations Common to All Algorithms
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CHAPTER 3 Chapter 3 Using the SNAP
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CHAPTER 3: USING THE SNAP ETHERNET
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Environment Visual Basic 6 Internet
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MemMap Example Code CHAPTER 3: USIN
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Return Values CHAPTER 3: USING THE
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IsOpenDone V Close V Return Values
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Digital Point Methods CHAPTER 3: US
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SetDigBankOnMask V [in] long nPts63
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Analog Bank Methods CHAPTER 3: USIN
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GetStatusWatchdogTime [out] long pn
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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 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: Digital Events and Reactions—Read
Page 141 and 142: Analog Point Calculation and Set—
Page 143 and 144: Analog Read and Clear/Restart—Rea
Page 149 and 150: Serial Event Configuration—Read/W
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
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