Users manual, Mc100, 3 examples – Watson-Marlow MC100 User Manual
Page 29: 1 new speed to pump 1, Step 2: set 0 in dw10 control
Users Manual
MC100
MC100 Users Manual Profibus DP - rev 4
Rev. 4
Page 29 of 40
7.3 Examples:
7.3.1 New speed to pump 1:
In the following “Control” means data from the PLC to the MC100 and “Status” means data from
MC100 to the PLC.
The speed for pump 1 is set to 300 rpm.
Step 1:
Set pump no. 1 in MC100 Control Word DW0 Control
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
-
-
-
-
-
-
-
-
-
-
-
-
0
0
0
1
Step 2:
Set 0 in DW10 Control
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
-
-
-
-
-
-
-
-
0
0
0
0
0
0
0
0
Step 3:
Speed value 300 rpm to pump 1 in DW15 Control
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
-
0
0
0
0
0
0
1
0
0
1
0
1
1
0
0
Step 4:
Set P3 (Bit 10) in DW10 Control
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
-
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
Step 5:
Check P3 (Bit 10) in DW10 Status
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
-
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
Step5b:
If required check the new value for the speed in DW15 Status
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
-
0
0
0
0
0
0
1
0
0
1
0
1
1
0
0
Step 6:
Clear P3 (Bit 10) in DW10 Control
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
-
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Step 7:
Check Clear P3 (Bit 10) in DW10 Status
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
-
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
The cyclic data can be read in DW10-22 and will always have the selected(active) pump in DW10 LSB,
when NOT getting strings