Echelon LonPoint Application and Plug-In Manuel d'utilisateur télécharger pdf (Page 75)

The LonPoint Application and Plug-in Guide 8-3

Analog Function Block

This tab appears as follows:

This tab displays the flow of information through the AFB functional block. For

each of the analog inputs, use the

Inputs tab to determine whether the A1 or

A2 network variable value or a constant value will be used. Use the Function

tab to specify the function to be performed on the two values.

1 2 ... 70 71 72 73 74 75 76 77 78 79 80 ... 190 191

LonPoint 1
Application 1
Contents 3
LonPoint System Overview 7
1-2 LonPoint System Overview 8
Getting Started 10
LonPoint Applications 10
LONMARK Certified: Yes 11
Upstream and Downstream 12
Heartbeats 12
Throttle 13
Default Values 13
Override Values 13
Network Variables 14
ONMARK Reference help file.) 15
Network Variable Formats 16
1-12 LonPoint System Overview 18
The Digital Input Functional 19
Digital Input 21
Delayed Processing option 23
Pulsed or the One-Shot 23
XX (e.g. 2.XX) 24
The Digital Input/Counter 27
Functional Block: Application 27
SNVT_temp_f 28
Digital Input/Counter 29
Processing Options 30
One-Shot 31
Repeating Count 32
Can Counter 33
Boxing Machine 33
Frequency 34
Processing Parameters 35
Translation 36
Output Parameters 37
The Digital Output Functional 39
Digital Output 41
Input Defaults 44
Mode network 45
Hand-Off-Auto switch 48
SNVT_hvac_mode 50
Digital Encoder, Lookup 50
Digital Encoder 51
Lookup Tables 52
Mode_Out 54
The Analog Input Functional 57
Analog Input, Translation 58
Analog Input 59
Ω RTD measures 0.12º C at the 60
The Analog Output Functional 67
Configuring an Analog Output 68
Analog Output 69
Defaults 70
The AFB Functional Block: 73
Application and Plug-in 73
Analog Function Block 75
Function 78
The PID Controller Functional 85
Enable network variable 88
PID Coefficients 91
Cascade – 100
Reverse Acting process 101
The Scheduler Functional 103
Blocks: Application and the 103
LonPoint Schedule Maker 103
SetTime Time 104
SCH- 1 Clock 104
SCH- 1 Event Scheduler 105
SCH- 1 State Machine 105
Types of Schedules 107
Defining Daily Schedules 108
Daily Schedule 109
Default Daily Schedule 110
Defining Inputs and Outputs 111
10-10 Scheduler Interface 112
Digital Inputs 113
Digital Outputs 114
10-14 Scheduler Interface 116
Defining State Transitions 117
10-16 Scheduler Interface 118
State Transition Definitions 119
Defining Exit Conditions 120
Exit Condition Definitions 121
10-20 Scheduler Interface 122
Configuring Daily Schedules 124
10-24 Scheduler Interface 126
Configuring a State Machine 128
Assigning Input/Output Names 128
10-28 Scheduler Interface 130
Defining the State Machine 131
10-30 Scheduler Interface 132
10-32 Scheduler Interface 134
Setting Scheduler Options 135
10-34 Scheduler Interface 136
10-36 Scheduler Interface 138
Resetting the Simulator 139
Using Debug Mode 139
Simulating Inputs 140
Running to the Next Event 140
Overriding the Event Schedule 141
10-40 Scheduler Interface 142
Setting the SCH-10 Time 144
Testing a Schedule Design 145
10-44 Scheduler Interface 146
The Schedule Keeper Utility 147
Modifying the Daily Schedules 149
11-4 Schedule Keeper Utility 150
Schedule 151
Modifying Schedule Overrides 152
Modifying System Parameters 153
Adding Schedule Constraints 154
Schedule Constraint Equations 155
Operands 156
Operators 156
Examples: 156
Adding Parameter Constraints 157
Converting to US Units 159
11-14 Schedule Keeper Utility 160
Data_In and Data_Out network 162
Type Translator and Status 162
Type Translator 163
Scaling or Mapping values 165
The Data Logger Functional 167
Block: Application, Plug-in 167
SNVT_str_asc 168
SNVT_switch 168
Data Logger 169
Input Options 170
Input Limits 171
Log High 172
Log Options 173
Data network variable 174
Attributes 174
Data Logger Selection 177
Menu Commands 178
Formatting Preferences 179
Monitoring Preferences 180
Log Preferences 181
Data Log list and select 182
CSV Text File Format 183
Tagname Line 183
Data Lines 184
Data Point Formats 185
Command Line Switches 185
The Node Object Functional 188
ONMARK aware network tools 189
Status network 190

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Echelon LonPoint Application and Plug-In Manuel d'utilisateur Page 75

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