Technical data • Individual components
94
Panel PC 2100 swing arm user's manual V1.12
The voltage drop resulting from long cable lengths can lead to greater potential differences between bus stations,
which can hinder communication. This can be improved by running ground wire with the others.
3.4.2.3.3 RS485 - Bus length and cable type
The maximum transfer rate of 115 kbit/s depends on the type of cable being used.
Extension
Transfer rate
1200 m
Typ. 115 kbit/s
Table 84: RS485 - Bus length and transfer rate
The material used for the cable should have all or most of the following properties in order to achieve an optimal
transfer rate.
RS485 cables
Property
Signal lines
Cable cross section
Wire insulation
Conductor resistance
Stranding
Shield
4x 0.25 mm² (24 AWG / 19), tinned copper stranded wire
PE
≤82 Ω/km
Wires stranded in pairs
Paired shield with aluminum foil
Grounding line
Cable cross section
Wire insulation
Conductor cross section
1x 0.34 mm² (22 AWG / 19), tinned copper stranded wire
PE
≤59 Ω/km
Outer sheathing
Material
Features
Complete shielding
PUR mixture
Halogen-free
From tinned copper wires
Table 85: RS485 - Cable requirements
3.4.2.3.4 CAN bus interface - Pinout
The CAN bus interface on the system unit is referred to as IFx.
CAN bus - IFx
1)2)
The CAN bus interface is a 10-pin female connector without electrical isolation.
Transfer rate
Max. 1 Mbit/s
Bus length
Max. 1000 m
Pin
Assignment
1
-
2
Shield
3
-
4
-
5
CAN H
6
CAN L
7
CAN GND
8
-
9
-
10
-
10-pin, male
1 3 5 7
2 4 6 8 10
9
Table 86: 5ACCIF01.FPCS-000 - CAN bus interface
1)
The interfaces, etc. available on the device or module have been numbered as such for easy identification. This numbering may differ from that used by
the particular operating system.
2)
This interface can only be used in Automation Runtime and is referred to as IF3 in Automation Studio / Automation Runtime. It is not a "PC interface" and
therefore not shown in BIOS.
