Rockwell Automation 2705-DN42 User Manual

2705-DN42
DeviceNet Interface Communication Board

Installation Instructions

This document describes how to install a DeviceNet communications
board.

Overview

LED Indicator

•

• DIP Switches

• DeviceNet Connections

• DeviceNet Components

Installation and Mounting

Setting the DIP Switches

•

• DeviceNet Termination

Operations

Modes of Operation

•

• DeviceNet Operations

Troubleshooting

Using the LED Indicator

•

User-Defined Configuration

For more information on the RediSTATION Operator Terminal and
its DeviceNet Configuration refer to Publication 2705-804 on–line at
htpp://www.ab.com.

For more information on the DeviceNet specifications, refer to the
Open DeviceNet Vendor Association at http://www.odva.ors.

2

Overview

LED Indicator

DIP Switches

The RediSTATION has one bicolor LED (red/green) to show its
operating status. The LED shows the following indications.

Color State Indication

None Off No power.

Solid Unrecoverable fault.

Red

Green

Flashing

Solid Normal runtime operation.

Flashing Device is idle or not allocated to a master.

Output error or configuration error.

The RediSTATION device is operating as a slave to
the master controller.

The LED is visible when the cover of the enclosure is removed.

The RediSTATION has one 10-position DIP switch for setting:

• DeviceNet Node Address

• DeviceNet Data Rate

• Output Fault State (Off or Last State)

• Output Flash Rate

The DIP switch is located on the circuit board inside the enclosure.
The switch settings and functions are shown below. The default
setting for each switch or group of switches is underlined.

Default Configuration

OFF = 0

10 123456789

ON = 1

DeviceNet Address 000000 – 111111
DeviceNet Data Rate 00

Output Fault State 0 = Outputs Turn Off on Fault

Output Flash Rate 0 = 1 Hz (0.5 sec On, 0.5 sec Off)

= 125K BPS
01 = 250K BPS
10 = 500K BPS
11 = Invalid

1 = Outputs Hold Last State on Fault

1 = 2 Hz (0.25 sec On, 0.25 sec Off)

(0 to 63)

3

DeviceNet Connection

DeviceNet Components

The RediSTATION receives all power and communications through
the DeviceNet cable. A separate power supply is not required. This
is the only external connection to the RediSTATION.

The RediSTATION connects to the DeviceNet using the DeviceNet
terminal block on the communication board.

DeviceNet

Terminal Block

Terminal Signal Function Color

1 COM Common Black
2 CAN_L Signal Low Blue

1

6

3 SHIELD Shield Uninsulated
4 CAN_H Signal High White
5 VDC+ Power Supply Red
6 E. GND Chassis Ground Green

DeviceNet cables and components are available from Allen-Bradley
as separate catalog numbers.

It is your responsibility to install and implement the DeviceNet
network and supported devices according to the DeviceNet
guidelines.

4

Installation and Mounting

Setting the DIP Switches

The setting of the DIP switch on the circuit board determines:

• DeviceNet node address

• DeviceNet data rate

• Output flash rate

• Output fault state

The location of the DIP switch and the factory defaults are shown
below.

DIP Switches

OFF = 0

10 123456789

ON = 1

Setting the DeviceNet Node Address

DIP switches 1 to 6 set the node address (0 to 63) of the
RediSTATION on the DeviceNet network. The address is set using
binary addressing.

OFF = 0

10 123456789

ON = 1

DeviceNet Address 000000 – 111111 (0 to 63)

The table below shows the switch settings for each address (0 to 63).

To set the DeviceNet node address:

1. Refer to the table below for switch settings of a specific address.

2. Using your finger or a pointed object, slide switches 1 through 6
to the appropriate ON/OFF positions.

ATTENTION: Do not use a pencil. Graphite from the pencil
is conductive and may damage the DIP switch.

!

5

DeviceNet

Address

0 000000 16 010000 32 100000 48 110000
1 000001 17 010001 33 100001 49 110001
2 000010 18 010010 34 100010 50 110010
3 000011 19 010011 35 100011 51 110011
4 000100 20 010100 36 100100 52 110100
5 000101 21 010101 37 100101 53 110101
6 000110 22 010110 38 100110 54 110110
7 000111 23 010111 39 100111 55 110111
8 001000 24 011000 40 101000 56 111000

9 001001 25 011001 41 101001 57 111001
10 001010 26 011010 42 101010 58 111010
11 001011 27 011011 43 101011 59 111011
12 001100 28 011100 44 101100 60 111100
13 001101 29 011101 45 101101 61 111101
14 001110 30 011110 46 101110 62 111110
15 001111 31 011111 47 101111 63 111111

Switch Settings

6  1

DeviceNet

Address

Switch Settings

6  1

DeviceNet

Address

Switch Settings

6  1

DeviceNet

Address

Switch Settings

Setting the Data Rate

6  1

DIP switches 7 and 8 set the data rate at which the RediSTATION
communicates on the DeviceNet network. The factory default
setting is 125K BPS.

Default Configuration

OFF = 0

10 123456789

ON = 1

DeviceNet Data Rate 00 = 125K BPS

01 = 250K BPS
10 = 500K BPS
11 = Unused

The data rate determines the maximum length of the DeviceNet
cable.

Data Rate Cable Length (Maximum)

125K BPS 500 meters (1600 feet)
250K BPS 200 meters (600 feet)
500K BPS 100 meters (300 feet)

To set the DeviceNet data rate:

1. Refer to the table above to select the correct data rate.

2. Slide switches 7 and 8 to the appropriate ON/OFF positions.