Operators and Reference Manual
MC12
MC12 OM RM EN 74-111-132 v1.03.doc
Ver. 1.03
Page 6 of 47
2. ABOUT THIS MANUAL
This manual describes the use of a MC12 and a MC12P.
As the 2 models differ slightly, a few sections in this manual are divided into model specific
descriptions. Unless otherwise stated the word MC12 covers both models.
3. MC12 SYSTEM DESIGN
MC12 is the main computer of the Flexicon Multi Filling System (FMFS). MC12 can not
perform filling by itself, but is developed for controlling one of Flexicons pumps for example
PD12 or PD22 series.
The MC12 uses an RS485 multidrop network to communicate with the connected drives.
The drives may also be controlled from a PC; in that case the PC communicates through an
RS485 multidrop network as specified in the Flexicon protocol.
3.1 RS485 multidrop network
Up to 16 drives may be connected to the Flexicon network. The maximum length of the
network is 500 meters.
Figure 1 – Drive Connections
The network is physically connected through special Flexicon communication cables marked
"type 3". The MC12 is connected via a cable 3 to the first drive of the system, and
subsequently the individual drives are inter-connected with a cable 3. The last drive is
provided with a terminator which terminates the network.
It is important that each drive is allocated an individual address in order that the MC12 can
identify individual drives.
Address 1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16
SW1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
SW2
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
SW3
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
SW4
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
Figure 2 – Switch address
