1747-6.22, Backup Scanner User Manual

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7-144 RIO Block Transfer Rung 2:12 Move the virtual BTW control word to the M0 file for the SN module while a BTW is in progress, and continue doing so | until the enable, done and error bits are all turned off, completing the hand-shake process. | | | | VIRTUAL BTW | | BTW ENABLE CONTROL | | BIT BITS | | N7:53 +MO----------------+ | |-+----] [-----+------------------------------------------+MOVE +-| | | 15 | |Source N7:53| | | | | | 0| | | | | |Dest M0:1.200| | | | | | *| | | | | +------------------+ | | | | | | | | | | | VIRTUAL | | | | BTW DONE | | | | BIT | | | | N7:64 | | | +----] [-----+ | | | 13 | | | | | | | | | | | | VIRTUAL | | | | BTW ERROR | | | | BIT | | | | N7:64 | | | +----] [-----+ | | 12 | | Rung 2:13 | |-------------------------------------+END+------------------------------------| | | Publication 1747-6.22 Bidirectional Alternating Block Transfer The following rungs demonstrate a bidirectional alternating block transfer. Using these rungs ensures the block transfer requests are executed in the order in which they are sent to the queue. This example also ensures that the block transfer read and block transfer write alternate. The XIO conditions prevent the BTR and BTW from queueing simultaneously. The block transfers continue as long as the XIC precondition bit is true. Rung 2:0 Configure the BT operation type, length, and RIO address (R, G, S in decimal) at power-up. N7:50/7 must be set to a "1" to indicate a BTR and N7:53/7 must be a logical "0" to indicate a BTW operation. | | | | | | | POWER±UP BTR | | BIT CONTROL | | S:1 +COP---------------+ | |----] [----------------------------------------------+-+COPY FILE +-+-| | 15 | |Source #N7:50| | | | | |Dest #M0:1.100| | | | | |Length 3| | | | | +------------------+ | | | | | | | | | | | | | | | | BTW | | | | CONTROL | | | | +COP---------------+ | | | +-+COPY FILE +-+ | | |Source #N7:53| | | |Dest #M0:1.200| | | |Length 3| | | +------------------+ |
RIO Block Transfer 7-145 Rung 2:1 Copy the BTR status area to an integer file only when a BTR is in progress. This status data will then be used | | | throughout the program and limit sthe number of M-file accesses. | | | | BTR | | PENDING BTR STATUS | | B3 +COP---------------+ | |-+----] [-----+------------------------------------------+COPY FILE +-| | | 0 | |Source #M1:1.100| | | | | |Dest #N7:60| | | | | |Length 4| | | | | +------------------+ | | | | | | | | | | | | | | | CHECK BTR | | | | STATUS | | | | B3 | | | +----] [-----+ | | 2 | Rung 2:2 Unlatch the bit that continues to check the BTR status. When a BTR is complete, the done or error bit is set. The ladder program must then unlatch the enable bit, then wait for the SN module to turn off the done/error bit before | another BTR to the same M-file location can be initiated. This is one complete BTR cycle. | | | | VIRTUAL | | BTR DONE CHECK BTR | | BIT STATUS | | N7:60 B3 | |-+----]/[-----+-------------------------------------------------------(U)-----| | | 13 | 2 | | | | | | | | | | | VIRTUAL | | | | BTR ERROR | | | | BIT | | | | N7:60 | | | +----]/[-----+ | | 12 | Rung 2:3 | Copy the BTW status area to an integer file only when a BTW is in progress. This status data will then be used | | throughout the program and limits the number of M-file accesses. | | | | BTW BTW | | PENDING STATUS | | B3 +COP---------------+ | |-+----] [-----+------------------------------------------+COPY FILE +-| | | 1 | |Source #M1:1.200| | | | | |Dest #N7:64| | | | | |Length 4| | | | | +------------------+ | | | | | | | | | | | | | | | CHECK BTW | | | | STATUS | | | | B3 | | | +----] [-----+ | | 3 | Publication 1747-6.22
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Backup Scanner 1747-BSN User Manual
Page 3 and 4:
Overview Table of Contents Preface
Page 5 and 6:
Scanner Configuration and Programmi
Page 7 and 8:
Switchover Considerations Programmi
Page 9 and 10:
Glossary Index Table of Contents xi
Page 11 and 12:
Who Should Use This Manual How to U
Page 13 and 14:
Conventions Used in This Manual The
Page 15 and 16:
Overview This chapter contains the
Page 17 and 18:
Local I/O Remote I/O Processor I/O
Page 19 and 20:
SLC and Scanner Asynchronous Operat
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RIO Logical Rack 0 RIO Logical Rack
Page 23 and 24:
Physical and Logical RIO Link Speci
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Overview 1-27 Complementary I/O: Pl
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Overview 1-29 Complementary I/O: Pl
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Slot Pair I O I O I O I O 0 1 2 3 4
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Hardware Features Overview 1-33 Not
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Module Address Switch Overview 1-35
Page 35 and 36:
A Typical SLC 500 Backup Configurat
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Overview 1-39 Data table values are
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Required Tools and Equipment Chapte
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5. Configure the system. Quick Star
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Configuration Selection Installatio
Page 45 and 46:
Backup Scanner Installation Install
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Installation and Wiring 3-49 Termin
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Chapter 4 Operating Your SLC 500 Ba
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(1) Operating Your SLC 500 Backup S
Page 53 and 54:
Operating Your SLC 500 Backup Syste
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Startup Sequencing Operating Your S
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Understanding Remote Input and Outp
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Page 61 and 62:
Rules for Configuring the Scanner G
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Logical Rack 0 Logical Rack 1 Logic
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Considerations When Configuring Rem
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Output Reset Control Device Inhibit
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M0 File - RIO Device Reset Control
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Page 75 and 76:
M1 Status File Description General
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Logical Device Starting Address Sta
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Logical Device Fault Status M1 (Sta
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Page 83 and 84:
Primary Logical Device Address, Wor
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SLC/Scanner Configuration Scanner C
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Chapter 6 Module Control and Status
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Module Control and Status Word 6-91
Page 91 and 92: Transferring Data over the High-Spe
Page 93 and 94: Data Transfer Status Word Module Co
Page 95 and 96: Program File 2 0000 0001 0002 Modul
Page 97 and 98: Program File 4 0000 0001 0002 0003
Page 99 and 100: Module Status Counters Module Contr
Page 101 and 102: RIO Block Transfer Theory of Operat
Page 103 and 104: SLC Processor ➀ RIO Block Transfe
Page 105 and 106: RIO Block Transfer General Function
Page 107 and 108: Example 2 # 2 # 4 # 1 # 2 # 3 # 4 #
Page 109 and 110: M0 File BT Control Buffer Layout BT
Page 111 and 112: Error Code Description RIO Block Tr
Page 113 and 114: RIO Block Transfer 7-115 Your SLC c
Page 115 and 116: Control EN TO Status Flag EW ST ER
Page 117 and 118: Control Flag EN TO Status Flag EW S
Page 119 and 120: Bit Number Octal 17 10 7 Bit Number
Page 121 and 122: Block Transfer Read Control Logic E
Page 123 and 124: RIO Block Transfer 7-125 Rung 2:3 W
Page 125 and 126: RIO Block Transfer 7-127 Rung 2:1 C
Page 127 and 128: Directional Continuous Block Transf
Page 131 and 132: Directional Repeating Block Transfe
Page 133 and 134: Rung 2:5 Block transfer reads will
Page 137 and 138: Bidirectional Continuous Block Tran
Page 139 and 140: RIO Block Transfer 7-141 When a BTR
Page 141: RIO Block Transfer 7-143 Rung 2:9 T
Page 147 and 148: RIO Block Transfer 7-149 Rung 2:10
Page 149 and 150: RIO Block Transfer 7-151 Rung 2:2 U
Page 153 and 154: RIO Block Transfer 7-155 Rung 2:11
Page 155 and 156: Switchover Considerations Chapter 8
Page 157 and 158: Switchover Considerations 8-159 Div
Page 159 and 160: Switchover Considerations 8-161 Dur
Page 161 and 162: Switchover Considerations 8-163 The
Page 163 and 164: Programming Techniques Chapter 9 Ch
Page 165 and 166: Program File 3 0000 0001 0002 0003
Page 167 and 168: 0009 0010 0011 0012 Programming Tec
Page 169 and 170: 0017 Programming Techniques 9-171 T
Page 171 and 172: 0005 0006 0007 0008 0009 0010 0011
Page 173 and 174: 0021 0022 0023 0024 0025 0026 0027
Page 175 and 176: Programming Techniques 9-177 Data T
Page 177 and 178: Programming Techniques 9-179 3. For
Page 179 and 180: Programming Techniques 9-181 The ha
Page 181 and 182: Programming Techniques 9-183 Howeve
Page 183 and 184: Backup Scanner Operating Specificat
Page 185 and 186: Calculating Throughput Specificatio
Page 187 and 188: Specifications A-189 You need to ca
Page 189 and 190: Determining T btx All Baud Rates 57
Page 191 and 192: Specifications A-193 3. Calculate t
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Backup Scanner Output Delay Time (T
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M0-M1 Files and G Files Appendix B
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Monitoring Bit Addresses M0-M1 File
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Access Time M0-M1 Files and G Files
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S:4/8 causes the #M1:4.3 file to up
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M0-M1 Files and G Files B-205 G Fil
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M0-M1 Files and G Files B-207 With
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RIO Configuration Worksheet Appendi
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Glossary The following terms are us
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Glossary 213 Module Status Word (MS
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Numerics 1/2-slot addressing, 1-13,
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minimizing the scan time, B-6 speci
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Index I-ccxix Publication 1747-6.22
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Publication 1747-6.22 — October 1
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