Passive Components for RS-485 Networks
4-12
PROFIBUS Networks SIMATIC NET
6GK1970-5CA20-0AA1 Release 2 05/2000
Properties
The characteristics of the flexible cable differ from those of the standard LAN cable
as follows:
S The sheath material is free of halogens (polyurethane, PUR)
S Extremely good resistance to abrasion
S Resistant to mineral oils and grease
S Extremely good resistance to UV radiation
S Small bending radii for installation and operation
S Due to the smaller Cu cross-section, the d.c. loop resistance and the HF
attenuation are higher which means reduced segment lengths.
S The sheath material is flame resistant
Uses
The flexible cable is designed for torsion of ±180
o
and is therefore particularly
suitable for networking moving plant parts, for example robots.
Note
If you connect to screw terminals, the stranded cores must be fitted with wire-end
ferrules (0.25 mm
2
complying with DIN 46228). Use only wire-end ferrules made of
materials with permanently stable contact properties, for example copper with a
tin-plated surface (not aluminum).
The bus connector 6ES7 972-0BA30-0XA0 cannot be connected to the stranded
cores.
To Next Page
Loading...
Need help?
General
