Generating AbvSpu-Database

SUMMARY

The Database keeps the process parameters necessary for the PLC-Program 'AbvSpu' to run, mainly properties of the MPs and PVs.

CONTENTS

  1. Introduction
  2. Generating the AbvSpu-Database
  3. Setup of the AbvSpu-Database

Introduction

The AbvSpu.awl program connects to the Operater Station, it is the same on all AbvSpu-Stations (PLCs) and processes the information of the Database.

The Database is customized for any PLC, it keeps the process parameters necessary for the S-7 Program ‘AbvSpu’ to run. Mainly concerned are the relevant properties of MPs and PVs.



The Database is generated by "Generating AbvSpu-Database".

Generating the AbvSpu-Database
WARNING
To avoid a conflict of Block-Numbers between AbvSpu and any S7-Program the Block-Numbers 100 to 199 must not used by any S-7 Program.

Preconditions for generating the Database
It’s assumed that a complete VisuNT-Project is on hand e.g. created by an import.

An import does not provide all information needed, some of the tables or table entries might be empty.

To create the Spu-Database successfully pay attention to the following points:

Generating the AbvSpu-Database
On pressing the button "Generating AbvSpu-Database" an automatic Object Number generation is accomplished. After that a dialog window, listing all AbvSpu Stations, is opened. Via buttons single Stations or all of them may be selected.
For any selected Station the according S7-Files are created.

"OK" generates the S7-Source files
for the selected Station(s).

Moreover the section "[aagrp]" is created in the "vision2000.ini" file.
Into that section 2 DataObjects (usually PVs located on different PLCs) are written for any Audible Alarm Group (1 to 7). These Objects are set to 1 on an upcoming alarm, so that on the rising edge the horn of the according S-7 is sound. Via a ‘Horn Stop’ button the horn can be switched off again.

How to create Audible Alarm Groups is described in: AudibleAlarmGroups.

Succession of generating AbvSpu Database
The succession of the generation is displayed in the ‘Output window’. The same information are written to the log file "GenAbvSpu.log" in the "AbvSpu-Database" folder, the messages are self-explanatory.

When generating the AbvSpu Database the relevant properties of the Data Objects are validated. Any discrepancy is pointed out by a WARNING: - ERROR: - message.
The Data Object causing the warning/error is not taken into the AbvSpu-Database.

The generated S7 files are written as "AbvSpuDB_Stationsname.awl" and "AbvSpuDB_Stationsname.sdf" to the subfolder "AbvSpu-Database" of the project folder.

Setup of the AbvSpu-Database

The AbvSpu Database consists of the STL-Source file <station.awl> and the Symbolic-file <station.sdf>.

Data Blocks of the STL-Source file
Data Blocks Meaning
DB 104 auxiliary-DB
DB 105 auxiliary-DB
DB 120 state change bMPs
DB 121 state change aMPs
DB 122 value change bMPs
DB 123 value change aMPs
DB 124 Limit change aMPs
DB 125 value change PVs
DB 126 String change PVs
DB 128 Parameter change MPs
DB 129 Fade in/out MPs
DB 135 Communication: Receive-DB 1
DB 136 Communication: Receive-DB 2
DB 170 1st Assignment-DB PVs
DB 171 ... 179 further Assignment-DB PVs (on demand)
DB 180 Pointer list bMPs
DB 181 Pointer list aMPs
DB 182 1st Parameter-DB bMPs
DB 183 2nd Parameter-DB bMPs (on demand)
DB 184 1st Parameter-DB aMPs
DB 185 2nd Parameter-DB aMPs (on demand)
DB 186 3rd Parameter-DB aMPs (on demand)
DB 187 4th Parameter-DB aMPs (on demand)
DB 188 Scaling parameter
DB 189 Dynamic Limits
DB 194 Object number-DB
DB 195 Configuration parameter
DB 197 Automatically generation of data blocks
DB 198 Initialisation of DBs
DB 199 define Initial Values
FC 185 Blocking logic

The symbolic file contains the symbolic identifier for the DBs of the STL-Source file as well as those Data Objects having a Process Connection addressing a S7-Hardware address.

The following table shows an exemplary entry for each case.
Symbol Address Data type Comment
spuDB_Hlp1 DB 104 DB 104 AbvSpu-AuxDB_1
bMP_S71_E1_0 E 1.0 BOOL Input 1.0