Technical data
Panel PC 2100 user's manual V1.17
191
Extension
Transfer rate
≤1000 m
Typ. 50 kbit/s
≤200 m
Typ. 250 kbit/s
≤100 m
Typ. 500 kbit/s
<20 m
1)
Typ. 1 Mbit/s
Table 179: CAN - Bus length and transfer rate
1)
The specified cable length is only valid with the values specified in
Tab. 178 "CAN driver settings"
. Cable lengths additionally depend on the values in the
timing register.
The material used for the cable should have all of the following properties or deviate from them as little as possible
to achieve an optimal transfer rate.
CAN cable
Property
Signal lines
Cable cross section
Wire insulation
Conductor resistance
Stranding
Shield
2x 0.25 mm² (24 AWG / 19), tinned copper stranded wire
PE
≤82 Ω/km
Wires stranded in pairs
Paired shield with aluminum foil
Ground line
Cable cross section
Wire insulation
Conductor resistance
1x 0.34 mm² (22 AWG / 19), tinned copper stranded wire
PE
≤59 Ω/km
Outer jacket
Material
Properties
Complete shielding
PUR compound
Halogen-free
Composed of tinned copper wires
Table 180: CAN cable requirements
Terminating resistor
A terminating resistor is integrated in the interface option above the ETH1 interface. A switch is used to enable
or disable the terminating resistor for the CAN bus interface. The L1 LED status indicator indicates whether the
terminating resistor is switched on or off.
Terminating resistor
On
The terminating resistor is switched on.
Off
The terminating resistor is switched off.
Terminating resistor
On
Off
Table 181: Terminating resistor
2.3.5.6.3.4 Shielding
For the interfaces on the 10-pin female connector, the interface shield can be put on pin 2 of the female connector.
A functional ground connection and screw, which can also be used for the cable shields, is located on the interface
plate of the system unit.
2.3.5.6.3.5 LED status indicators - L1, L2, L3
The interface option has 3 integrated LEDs located above the terminating resistor.
LED status indicators
LED
Color
Status
Explanation
On
The CAN bus terminating resistor is enabled.
L1
Yellow
Off
The CAN bus terminating resistor is disabled.
On
POWERLINK Link LED
Indicates a connection to a POWERLINK net-
work.
L2
Green
Blinking
POWERLINK Link LED
Data transfer in progress.
On
POWERLINK Status/Error LED
See
L3
Green-Red
Off
POWERLINK Status/Error LED
See
L1
L2
L3
Table 182: 5ACCIF01.FPSC-000 - LED status indicators