3 Technical Data
3.1 Cabling Requirements
•
Choose suitable media for Ethernet data transmission. CAT5e and CAT6 cables are recommended for industrial applications. Both
types are available as unshielded twisted pair and shielded twisted pair.
•
Shielded cables are recommended for use in industrial environments and with drives.
•
A maximum cable length of 100 m (328 ft) is allowed between the switches.
3.2 Cable Specifications
PROFINET cables used are based electrically on category 5 balanced LAN cables according to ISO/IEC 11801 Edition 2.0, Class D.
Type C cables can be used in special applications (for example, the use of trailing cables and frequently moved machine parts), even
though their design and mechanical parameters can deviate from the specifications of type A and type B cables. Still, most of the
electrical parameters (for example, impedance levels) are retained.
Highly flexible copper cables generally have the finest stranded conductors and a highly resistant polyurethane outer sheath. Various
outer sheath materials are permitted to meet the various demands regarding resistance of industrial environments and exterior/
underground laying (natural and synthetic oil, grease, coolants/lubricants, chemicals, high and low temperatures, UV radiation, and so
on).
Table 2: Cable Specifications for Application Types A, B and C
Cable type
Application type A
Application type B
Application type C
Design
Data cable
Data cable
Data cable
Cable installation type
Stationary, no movement after
installation.
Flexible, occasional movement
or vibration.
Special applications (for example,
highly flexible, permanent move-
ment, vibration, or torsion).
Cable marking
PROFINET type A
PROFINET type B
PROFINET type C
Core cross-section
AWG 22/1
AWG 22/7
AWG 22/..
Outer diameter
5.5–8.0 mm (0.22–0.31 in)
Application dependent
Core diameter
1.5 ± 0.1 mm (0.06 ± 0.004 in)
Application dependent
Color (outer sheath)
Green RAL6018
Application dependent
Core identification (col-
ors)
star quad 2 pair
White, yellow, blue, orange
Pair 1: white (RXD+), blue (RXD-) Pair 2: yellow (TXD+), orange (TXT-)
Number of cores
4
Cable design
2 pairs or 1 star quad
Shielding design type
Aluminum foil + Cu braiding
Application
Plug type
RJ 45 (IP20 or IP65/67)/M12
Table 3: Transmission Performance Requirements
Relevant standard
ISO/IEC 11801 Edition 2.0, IEC 61156 (minimum Category 5)
Technical Data
Installation Guide | VLT® PROFINET MCA 120
AN274237376992en-000101 / 130R0856 | 3
Danfoss A/S © 2019.03
