1747-6.22, Backup Scanner User Manual

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4-52 Operating Your SLC 500 Backup System Publication 1747-6.22 The 1747-BSN automatically exchanges system status information when communicating with another 1747-BSN through the High- Speed Serial Link (HSSL). Both modules are continuously communicating with each other, even when both processors are not in Run mode. This is achieved by sending and receiving the system status words. This information can be read from either module at any time and provides for both SLC 5/0x (primary and secondary) the “other side status”. HSSL is also used to transfer user data table data, up to 2K total per BSN module. RS-232/485 Communication Channel The RS-232/485 channel is a dumb communication channel which is used to switch the connection to one operator interface or other DF1 device (through RS-232/485). The communication channel relays are closed when the module is primary; otherwise the relays are open as shown in the figure below. Primary Secondary SLC 5/04 1747-BSN RIO/DH+ Communication Channel 1747-BSN SLC 5/04 To Operator Interface The RIO/DH+ communication channel has a relay that is closed when the 1747-BSN module is in the primary mode; otherwise the relay is open. The communication channel supports the following configurations (The illustration on the next page shows the channel block diagram): 1. RIO: Supports the 57.6, 115.2 and 230.4 KBaud configurations. When the module is in primary mode, it emulates all the 1747-SN Series B functionality. When the module is in secondary mode, the channel receives the input data from the primary 1747-BSN module and sends it to the SLC 5/0x, emulating the 1747-SN Series B backplane communication. As a result, the secondary SLC 5/0x “thinks” that it is really connected to the remote racks;
(1) Operating Your SLC 500 Backup System 4-53 2. DH+: Works under 57.6, 115.2 and 230.4 KBaud configurations. The primary 1747-BSN enters into the DH+ network using the DH+ node address assigned to both processors. The secondary processor will effectively assume node address n+1 for programming purposes. The commands that the primary processor receives are sent through the HSSL to the secondary 1747-BSN and then to the secondary processor (the secondary 1747-BSN emulates the DH+ network for the secondary SLC 5/ 04). The replies come back to the primary 1747-BSN (again through the HSSL) and are sent to the DH+ network. This link has a functionality similar to that found in the 1785-BCM series B and C. The link is designed to make remote programming possible for the secondary SLC 5/04. The primary SLC 5/04 is connected to the DH+ network through the primary 1747-BSN communication channel relays and sends/receives messages without any intervention of the 1747-BSN module; 3. Dumb: In this mode the communication channel is disabled and is used only as a relay that is closed when the 1747-BSN is in the primary mode and otherwise is open. Primary Secondary SLC 5/04 1747-BSN (2) 1747-SN emulation 1747-BSN Remote I/0 Link SLC 5/04 Primary Secondary SLC 5/04 1747-BSN HSSL HSSL 1747-SN emulation 1747-BSN DH+ Network SLC 5/04 Publication 1747-6.22
Page 1 and 2: 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
Page 21 and 22: RIO Logical Rack 0 RIO Logical Rack
Page 23 and 24: Physical and Logical RIO Link Speci
Page 25 and 26: Overview 1-27 Complementary I/O: Pl
Page 27 and 28: Overview 1-29 Complementary I/O: Pl
Page 29 and 30: Slot Pair I O I O I O I O 0 1 2 3 4
Page 31 and 32: Hardware Features Overview 1-33 Not
Page 33 and 34: Module Address Switch Overview 1-35
Page 35 and 36: A Typical SLC 500 Backup Configurat
Page 37 and 38: Overview 1-39 Data table values are
Page 39 and 40: Required Tools and Equipment Chapte
Page 41 and 42: 5. Configure the system. Quick Star
Page 43 and 44: Configuration Selection Installatio
Page 45 and 46: Backup Scanner Installation Install
Page 47 and 48: Installation and Wiring 3-49 Termin
Page 49: Chapter 4 Operating Your SLC 500 Ba
Page 53 and 54: Operating Your SLC 500 Backup Syste
Page 55 and 56: Startup Sequencing Operating Your S
Page 57 and 58: Understanding Remote Input and Outp
Page 61 and 62: Rules for Configuring the Scanner G
Page 63 and 64: Logical Rack 0 Logical Rack 1 Logic
Page 65 and 66: Considerations When Configuring Rem
Page 69 and 70: Output Reset Control Device Inhibit
Page 71 and 72: M0 File - RIO Device Reset Control
Page 75 and 76: M1 Status File Description General
Page 77 and 78: Logical Device Starting Address Sta
Page 79 and 80: Logical Device Fault Status M1 (Sta
Page 83 and 84: Primary Logical Device Address, Wor
Page 85 and 86: SLC/Scanner Configuration Scanner C
Page 87 and 88: Chapter 6 Module Control and Status
Page 89 and 90: 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
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SLC Processor ➀ RIO Block Transfe
Page 105 and 106:
RIO Block Transfer General Function
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Example 2 # 2 # 4 # 1 # 2 # 3 # 4 #
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M0 File BT Control Buffer Layout BT
Page 111 and 112:
Error Code Description RIO Block Tr
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RIO Block Transfer 7-115 Your SLC c
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Control EN TO Status Flag EW ST ER
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Control Flag EN TO Status Flag EW S
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Bit Number Octal 17 10 7 Bit Number
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Block Transfer Read Control Logic E
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RIO Block Transfer 7-125 Rung 2:3 W
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RIO Block Transfer 7-127 Rung 2:1 C
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Directional Continuous Block Transf
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Page 131 and 132:
Directional Repeating Block Transfe
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Rung 2:5 Block transfer reads will
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Page 137 and 138:
Bidirectional Continuous Block Tran
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RIO Block Transfer 7-141 When a BTR
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RIO Block Transfer 7-143 Rung 2:9 T
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RIO Block Transfer 7-145 Rung 2:1 C
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Page 147 and 148:
RIO Block Transfer 7-149 Rung 2:10
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RIO Block Transfer 7-151 Rung 2:2 U
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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
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Programming Techniques Chapter 9 Ch
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Program File 3 0000 0001 0002 0003
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0009 0010 0011 0012 Programming Tec
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0017 Programming Techniques 9-171 T
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0005 0006 0007 0008 0009 0010 0011
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0021 0022 0023 0024 0025 0026 0027
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Programming Techniques 9-177 Data T
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Programming Techniques 9-179 3. For
Page 179 and 180:
Programming Techniques 9-181 The ha
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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
Page 193 and 194:
Backup Scanner Output Delay Time (T
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M0-M1 Files and G Files Appendix B
Page 197 and 198:
Monitoring Bit Addresses M0-M1 File
Page 199 and 200:
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
Page 207 and 208:
RIO Configuration Worksheet Appendi
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Glossary The following terms are us
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Glossary 213 Module Status Word (MS
Page 213 and 214:
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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1747-6.22, Backup Scanner User Manual

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