Siemens Simatic S7-300 SM331 Erste Schritte Seite 69

VAR_TEMP
OB1_EV_CLASS : BYTE ;
OB1_SCAN_1 : BYTE ;
OB1_PRIORITY : BYTE ;
OB1_OB_NUMBR : BYTE ;
OB1_RESERVED_1 : BYTE ;
OB1_RESERVED_2 : BYTE ;
OB1_PREV_CYCLE : INT ;
OB1_MIN_CYCLE : INT ;
OB1_MAX_CYCLE : INT ;
OB1_DATE_TIME : DATE_AND_TIME ;
END_VAR
BEGIN
NETWORK
TITLE =Kanäle auslesen
//Die Kanawerte (0 bis 7) werden geladen und in DB1 (Kanalwerte)gespeichert
L PEW 256;
T DB1.DBW
L PEW 258;
T DB1.DBW
L PEW 260;
T DB1.DBW
L PEW 262;
T DB1.DBW
L PEW 264;
T DB1.DBW
L PEW 266;
T DB1.DBW
L PEW 268;
T DB1.DBW
L PEW 270;
T DB1.DBW
SM331; AI 8x12 Bit Getting Started Teil 1: 4-20mA
Getting Started, 05/2008, A5E00253409-04
//Bits 0-3 = 1 (Coming event),
Bits 4-7 = 1 (Event class 1)
//1 (Cold restart scan 1 of OB 1),
3 (Scan 2-n of OB 1)
//Priority of OB Execution
//1 (Organization block 1, OB1)
//Reserved for system
//Reserved for system
//Cycle time of previous OB1 scan (milliseconds)
//Minimum cycle time of OB1 (milliseconds)
//Maximum cycle time of OB1 (milliseconds)
//Date and time OB1 started
// Kanal 0
0;
// Kanal 1
2;
// Kanal 2
4;
// Kanal 3
6;
// Kanal 4
8;
// Kanal 5
10;
// Kanal 6
12;
// Kanal 7
14;
A.1 Quelle des Anwenderprogramms
Anhang
69