Ethernet RJ45

The panel PC has two Gigabit LAN ports (X108, X109). The 100Base-T, 1000Base-T, and 2500Base-T Ethernet standards enable the connection of corresponding network components and data rates of 100/1000/2500 Mbit/s. The required speed is selected automatically. The following table assigns the data rates and controllers to the device generations:

Assignment of data rates and controllers

Device generation

Mbit/s

Controller

CP22xx-0020

100/1000

Intel® i219 for LAN1 and i210 for LAN2

CP22xx-0030

100/1000

Intel® i219 for LAN1 and i210 for LAN2

CP22xx-0040

LAN1 100/1000

LAN2 100/1000/2500

Intel® i219 for LAN1 and i226 for LAN2

The RJ45 connection technology with twisted-pair cables is used. The maximum length of the cable connection is 100 m.

If you use the Ethernet ports with EtherCAT or for Real-Time Ethernet applications, you must observe the following distinction:

The Ethernet port (X109, LAN2) connected with the i210/i226 controller via PCIe is generally suitable for cycle times <= 1 ms and for distributed clock applications with EtherCAT.

The Ethernet port (X108, LAN1) integrated in the chipset with the i219 controller is generally suitable for EtherCAT and Real-Time Ethernet applications with cycle times > 1 ms (without distributed clocks).

Ethernet RJ45 1:Fig.6: Ethernet interface pin numbering
Ethernet interface pin assignment

Pin

Signal

Description

1

T2 +

Pair 2

2

T2 -

3

T3 +

Pair 3

4

T1 +

Pair 1

5

T1 -

6

T3 -

Pair 3

7

T4 +

Pair 4

8

T4 -

The LEDs of the LAN interfaces indicate the activity and the data transmission rate (Mbit/s). The LED shown completely green in the figure indicates whether the interface is connected to a network. If this is the case, the LED lights up green. The LED flashes when data transmission is in progress on the interface.

The green/orange LED shown in the figure indicates the data transmission rate. The device generations differ in terms of the possible data transmission rate. The following tables show the data transmission rates that the LEDs indicate.

LED means speed of 100/1000 Mbit/s

Mbit/s

LED

100

Lights up orange

1000

Lights up green

LED means speed of 100/1000/2500 Mbit/s

Mbit/s

LED

100

Off

1000

Lights up orange

2500

Lights up green