Users manual, Mc100, 3 process status bits (mc100 plc) – Watson-Marlow MC100 User Manual
Page 22
Users Manual
MC100
MC100 Users Manual Profibus DP - rev 4
Rev. 4
Page 22 of 40
7.1.3 Process status bits (MC100
PLC)
As acknowledgment of receiving word 0 the MC returns word 0 with
Word 0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
B1.7 B1.6 B1.5 B1.4 B1.3 B1.2 B1.1 B1.0 B0.7 B0.6 B0.5 B0.4 B0.3 B0.2 B0.1 B0.0
B0.0-4
Active pump number
B0.5-7
Reserved for future use
B1.0
Mode status bit 0; please see above
B1.1
Mode status bit 1; please see above
B1.2-3
Reserved for future use
B1.4
Ready to receive acyclic parameter transfer
B1.5
Parameter error – is reset when new parameter is accepted.
B1.6
Ready
B1.7
Alarm
Note
B1.4 in the MC100 control bits is used as a READY- /BUSY bit for explicit parameter transfer.
The data bit will go low when accepting an explicit parameter transfer and will go high again
when the data is processed, thereby enabling a new transfer. This handshake mechanism
MUST be respected otherwise data will be lost.
1
1
Normally only used in DeviceNet versions of the MC100