Users Manual
MC100
MC100 DeviceNet OM 1.01 EN.doc
Version: 1.01
Page 19 of 36
7.1.4 Process status bits from the pumps
To retrieve status from each pump, one byte (8 bits) is dedicated as described below.
Minimum one word is received with status from the pumps. The number of pumps connected is a
parameter, which is part of the configuration of the number of cyclic bytes of the network.
The MC100 will always automatically send the number of bytes for the connected pumps, after a
factory reset to defaults.
Word 8
Word 7
Word 6
Word 5
Word 4
Word 3
Word 2
Word 1
P16 P15 P14 P13 P12 P11 P10
P9 P8 P7 P6 P5 P4 P3 P2 P1
Bit mapping in the status byte:
7
6
5
4
3
2
1
0
ALARM Direction DONE Pump Dispense Tube
Br.
BUSY READY
Bit 0:
READY
Pump is ready (self check is OK).
Bit 1:
BUSY
“1” Indicate that the pump is active, either dispensing or pumping
“0” pump is idle
Bit 2:
Tube Br.
Tube bridge bit:
”1” = tube bridge on, “0” = tube bridge off.
Bit 3:
Dispense
Dispense bit:
“1” = dispense mode
Bit 4:
Pump
Pump bit:
“1” = pump mode
Bit 5:
DONE
4
Set, when pump goes from dispensing to idle / reset by a new START bit.
Bit 6:
Direction
Handshake for bit B5 from command byte (0=normal / 1=reverse direction.)
Bit 7:
ALARM
See Chapter 8 for further information
4
The DONE bit can be necessary to use if there is very short filling times, where the BUSY signal is not detected because of
transmission times on the fieldbus network.
