Example Program - Siemens SIMATIC C7-621 Manual

A 03/99

Example program

You will have created and started up the following STEP 7 program by following the instructions.
DB46:
Address Declaration Name
0.0 stat
+2.0 stat
+4.0 stat
FC15: Mode
Network 1 : Plant ON/OFF
A I 124.0
= Q 125.0
Network 2 : MANUAL mode
A Q 125.0
AN I 124.3
A I 124.4
S Q 125.1
A(
ON Q 125.0
O I 124.3
)
R Q 125.1
Network 3 : AUTO mode
A Q 125.0
A I 124.3
A I 124.4
S Q 125.2
A(
ON Q 125.0
ON I 124.3
)
R Q 125.2
Network 4 : Conveyor forward
A Q 125.1
A I 124.5
AN I 124.6
O M 5.0
= Q 125.3
Network 5 : Conveyor back
A Q 125.1
A I 124.6
AN I 124.5
= Q 125.4
First Steps with the C7-621
6ZB5610-0AF02-0BA0
Fill_Time
Full_Bottles
Messages
// Start (if input 124.0
// Plant ON (plant is then
// Plant ON
// and MANUAL mode selected (switch=0)
// Confirm acceptance of selected mode
// Manual mode activated
// If
// plant OFF (LED of DO not lit)
// OR AUTOMATIC mode selected (switch=1)
// Then select Manual mode
// If plant ON
// and AUTOMATIC mode selected (switch=1)
// and acceptance of selected mode confirmed
// Then set automatic mode
// Plant OFF (LED of DO not lit)
// or Manual mode set
// Then select AUTOMATIC mode
// If MANUAL mode set
// and Jog Forward is pressed (enabled)
// and Jog Back is not pressed (enabled)
// or filling process running in AUTOMATIC mode
// Then move conveyor forward
// If MANUAL mode set
// and Jog Back is pressed (enabled)
// and Jog Forward is not pressed (enabled)
// Then move conveyor back
Type Initial Value Comment
Word W#16#2003
Word W#16#0
Word W#16#0
on /off)
switched on/off)
Example program
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