Levitronix PuraLev i100MU User Manual page 29

4.3.6 Installation of RS485 Fieldbus Multi-Pump System Arrays
Figure 28 shows a multi-pump system arrangement with the RS485 fieldbus and its basic specifications.
Integrated
System
#1
5V
510 
Master
120 
510 
Figure 28: Multi-pump system arrangement with RS485 fieldbus
Following points and information shall be considered:
➔ Testing has been done with arrangements of 8 pump systems. Higher number is possible but
it is recommended to contact Levitronix
details and support.
➔ Address setting of the pump units can be done with the Levitronix
PC. A USB/RS485 converter cable with integrated initialization network can be ordered
according to Table 3
➔ The RS485 protocol for master communication is available at Levitronix
➔ Do not use multiple master systems at the same time.
➔ Do not use closed ring arrangements.
PL-4075-00, Rev02, DCO# 20-275
Integrated
System
#2
Initialization Network:
Always recommended.
To be implemented at the master.
®
Technical Service department (see Section 8) for
.
User Manual for PuraLev
Branch Bus Lines:
Length sum of all < 33 m.
Main Bus Line: < 100 m
Shielded cable with twisted wires recommended.
Termination:
Recommended for main bus line Length > 5m.
®
Service Software and a
®
®
i100MU
www.levitronix.com
Integrated
System
#N
120 
on request.
29