CAN Ports

Overview

The following illustration shows the location CAN ports of the controller:

G-SE-0001761.2.gif

 

 

Capabilities

The protocols and functions supported by the CAN ports are CANmotion and CANopen.

Characteristics

The following table describes the CAN characteristics:

Characteristic

Description

Standard

CAN-CIA(ISO 11898-2:2002 Part 2)1

Connector type

Sub-D9, 9 pins male

Protocol supported

CANmotion and CANopen

CAN bus format

CAN2.0A

CAN power distribution

No

Maximal cable length

See Transmission Speed and Cable - CANopen Hardware Setup Manual

Isolation

See note2

Bit rate

See table below4

Line termination

No. See note3

NOTE:  

1 Part 1 and Part 2 of ISO 11898:2002 are equivalent to ISO 11898:1993.

2 The isolation of the electronic module is 500 Vac RMS between the electronics powered by TM5 power bus and the part powered by 24 Vdc I/O power segment connected to the module. In practice, the TM5 electronic module is installed in the bus base, and there is a bridge between TM5 power bus and 24 Vdc I/O power segment. The two power circuits reference the same functional ground (FE) through specific components designed to reduce effects of electromagnetic interference. These components are rated at 30 Vdc or 60 Vdc. This effectively reduces isolation of the entire system from the 500 Vac RMS.

3 A resistor (R) is needed on each end of the CAN field bus.

4 Maximum cable length is described in the following table:

Baud rate

1 Mbit/s

800 Kbit/s

500 Kbit/s

250 Kbit/s

125 Kbit/s

50 Kbit/s

20 Kbit/s

10 Kbit/s

Maximum cable length

m

4

25

100

250

500

1000

2500

5000

ft.

13.12

82.02

328.08

820.20

1640.41

3280.83

8202.07

16404.15

Pin Assignment

The following illustration describes the pins of the CAN port:

G-SE-0002220.1.gif

 

 

The following table describes the pins of the CAN port:

PIN N°

Signal

Description

1

N.C.

Reserved

2

CAN_L

CAN_L bus Line (Low)

3

CAN_GND

CAN 0 Vdc

4

N.C.

Reserved

5

CAN_SHLD

N.C.

6

GND

0 Vdc

7

CAN_H

CAN_H bus Line (High)

8

N.C.

Reserved

9

N.C.

Reserved

N.C.: No Connection.

The shield is connected to pin 6, the 0 Vdc pin.

NOTE: Pin 9 is not connected internally. The controller does not provide power on CAN_V+.

Warning_Color.gifWARNING

UNINTENDED EQUIPMENT OPERATION

Do not connect wires to unused terminals and/or terminals indicated as “No Connection (N.C.)”.

Failure to follow these instructions can result in death, serious injury, or equipment damage.

Status LEDs

The following illustration shows the LED on the front panel display:

G-SE-0004691.1.gif

 

 

The following table describes the CAN status LED:

Marking

Description

LED

Color

Description

CAN0 STS

CAN 0 port status

Green / Red

See CAN0 / CAN1 STS LED below for CANopen status

CAN1 STS

CAN 1 port status

Green / Red

See CAN0 / CAN1 STS LED below for CANopen status

See CAN1 STS LED below for CANmotion status

The following table describes the CAN0 STS and/or CAN1 STS status LED when the CAN 0 and/or CAN 1 ports are used as CANopen master:

CAN0/CAN1 STS LED

CANopen Status

Description

OFF

No CANopen configured

CANopen is not active in the application

Single flash red / with green ON

Acceptable detected error limit threshold has been reached

The controller has detected that the maximum number of error frames has been reached or exceeded.

Double flash red / with green ON

Node Guarding or Heartbeat event

The controller has detected either a Node Guarding or Heartbeat exception for the CANopen master or slave device.

Red ON

Bus off

The CANopen bus is stopped

Green ON

The CANopen bus is operational

The following table describes the CAN1 STS status LED when CAN 1 port is used as CANmotion master:

CAN1 STS LED

CANmotion Status

Description

OFF

No CANmotion configured

CANmotion is not active in the application

Single flash red / with green ON

Acceptable detected error limit has been reached

The controller has detected that the maximum number of error frames has been reached or exceeded.

Red ON

Bus off

The CANmotion bus is stopped

Green ON

The CANmotion bus is operational

For further details, please refer to the CANopen Hardware Setup Manual.