Designing a Sequential Control System based on the Example of a Drill
S7-GRAPH for S7-300/400 Programming Sequential Control Systems
C79000-G7076-C526-01
3-13
4. If you wish, you can also enter a comment for the sequencer. In all views, the
comment field is at the top left and can be opened by clicking it with the mouse.
The following figure shows the completed sequencer.
GRAPH: Programming s7 Sequential Control Systems - Drill\...
File Edit Insert PLC Debug View Options Window Help
Drill
T1
Trans1
T4
Trans4
"Drill_d
own"
S2
Cla...
T2
Trans2
S3
Mo...
T3
Trans3
T7
Trans7
T8
Trans8
Drill_ready
Clamp_on
S "Clamp_workp"
Motor_on
S "Dr_mot_on"
Coolant_on
S "Cool_pump_on"
Lower_drill
N "Lower_drill""
S4
Low...
S7
Coo...
T6
"Start_but
ton"
Clamp_pres
_ok"
"Drill_moto
r_running"
"Coolant_
sel"
"Cool_pres
_ok"
S1
Dr...
"Drill_moto
r_running
"Coolant_
sel"
S5
Rai...
T5
Trans5
"Drill_up"
"Cl_press
_ok"
T6
Trans6
"Cool_press
_ok"
S6
Cla...
S1
CMP
Term
M
pump
off.T
T#500MS
Raise_drill
D "Raise_drill""
T#500MS
Term_M_pump_off
R ""Clamp_workp"
R "Dr_mot_on"
R "Cool_pump_on"
"Drill_mot
r_stopped
>=
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