Chapter
5
MSC800
66
Operating instructions | SICK
8011540/14B8/2019-06-06
Subject to change without notice
Electrical installation
The required wire cross-section for the data cable depends on the total length of the
network. The following table shows the overview as per ISO 11898.
Length of cable
Required wire cross-section (data cable)
0 ... 40 m
≥
0.25 mm
2
40 ... 300 m
≥
0.34 mm
2
300 ... 600 m
≥
0.5 mm
2
600 ... 1,000 m
≥
0.75 mm
2
Tab. 41 CAN bus: required wire cross-section depending on the data cable length
The following table shows the maximum permitted length of the CAN bus depending on the
number of CLV490 bar code scanners connected. This total length must not be exceeded.
Number of CLV490
Maximum data cable length
2
70 m
3
50 m
4
36 m
5
28 m
6
24 m
7
20 m
8
18 m
9
16 m
10
14 m
11
13 m
12
12 m
Tab. 42 CAN bus: maximum lengths of cable depending on the number of CLV490
Wiring CAN 1/CAN 2 data interface of the logic unit
All ICR890 systems and other CLV490 bar code scanners and a volume measurement
system (VMS4xx/5xx) can be connected via the two CAN interfaces of the MSC800.
The stub cables must be terminated with a resistor on the last device in each case.
Fig. 25: Wiring of the CAN interface with termination resistor
The division of the devices between the two data interfaces, CAN 1 and CAN 2, and the
sequence of the devices depend on the project-specific number and position of the
devices.