ProSoft Technology MVI56-AFC - Manual (Page 7)

MVI56-AFC ♦ ControlLogix Platform Contents
Liquid and Gas Flow Computer User Manual
ProSoft Technology, Inc. Page 7 of 316
February 25, 2011
7.3 Net Accumulator Calculation ................................................................................... 89
7.4 Frequently Asked Questions ................................................................................... 90
8 Archives 91
8.1 Archive Overview .................................................................................................... 92
8.2 Archive Generation .................................................................................................. 93
8.3 Archive Types .......................................................................................................... 94
8.4 Archive Order .......................................................................................................... 95
8.5 Archive Options ....................................................................................................... 97
8.6 Archive Locations .................................................................................................... 98
8.7 Editing the Archive Structure ................................................................................. 100
8.8 Extended Archives ................................................................................................ 102
8.8.1 Retrieving Extended Archives ............................................................................... 102
8.9 Archive Reports ..................................................................................................... 105
8.10 Archive Monitor ..................................................................................................... 107
9 Events 113
9.1 The Event Log ....................................................................................................... 114
9.2 Event Log Structures ............................................................................................. 115
9.3 Event Id Tag .......................................................................................................... 116
9.4 Event-triggered Archives and Accumulator Resets .............................................. 117
9.5 Downloading the Event Log in Firmware Version 2.07 and Later ......................... 118
9.5.1 Basic Principles of Implementation ....................................................................... 125
9.5.2 Data Elements ....................................................................................................... 127
9.5.3 Virtual Slave Precedence Relations ...................................................................... 129
9.5.4 Security and Optimization ..................................................................................... 130
9.5.5 The Log-Download Window (LDW) ....................................................................... 131
9.5.6 Modbus Transaction Sequencing and Constraints ............................................... 132
9.5.7 Access by Multiple Hosts ...................................................................................... 137
9.5.8 Other Considerations ............................................................................................ 138
9.6 Period-end Events ................................................................................................. 139
9.7 Loggable Events .................................................................................................... 140
9.8 Special Events ....................................................................................................... 141
9.9 Site Data Point Events .......................................................................................... 142
9.10 Meter Data Point Events ....................................................................................... 143
9.11 Stream Data Point Events ..................................................................................... 146
9.12 Prover Data Point Events ...................................................................................... 148
9.13 "Rkv" Notes ........................................................................................................... 151
9.14 Downloading the Event Log in Firmware Version 2.05 and Earlier ...................... 152
10 Security (Passwords) 155
10.1 Hard Password ...................................................................................................... 157
11 MVI56-AFC Backplane Communication 159
11.1 MVI56-AFC Module Data Transfer ........................................................................ 160
11.1.1 Input/Output Blocks for Data Transfer ................................................................... 160
11.1.2 Input/Output Transactions ..................................................................................... 162
11.2 MVI56-AFC Function Block Interface .................................................................... 167