ABB RER 133 Manuale elenco delle parti

RER 133

Bus Connection Module

Technical Description

RER 133

Technical Description

Bus Connection

Module

1MRS755163

Issued: 21.04.2004

Version: B/08.07.2005

Contents:

1. About this manual .....................................................................4

1.1. Copyrights .....................................................................................4

1.2. Trademarks ...................................................................................4

1.3. Guarantee .....................................................................................4

1.4. Use of symbols ..............................................................................4

2. Safety information .....................................................................5

3. General .......................................................................................6

4. Principle of operation ...............................................................7

5. Construction and installation ..................................................8

5.1. Module configuration .....................................................................9

5.2. Configuration examples ..............................................................10

6. Interfaces .................................................................................11

7. Type designation and technical data ....................................13

1MRS755163

RER 133

Technical Description

Bus Connection

Module

1. About this manual

1.1. Copyrights

The information in this document is subject to change without notice and should not

be construed as a commitment by ABB Oy. ABB Oy assumes no responsibility for

any errors that may appear in this document.

In no event shall ABB Oy be liable for direct, indirect, special, incidental or

consequential damages of any nature or kind arising from the use of this document,

nor shall ABB Oy be liable for incidental or consequential damages arising from

use of any software or hardware described in this document.

This document and parts thereof must not be reproduced or copied without written

permission from ABB Oy, and the contents thereof must not be imparted to a third

party nor used for any unauthorized purpose.

The software or hardware described in this document is furnished under a license

and may be used, copied, or disclosed only in accordance with the terms of such

license.

1.2. Trademarks

ABB is a registered trademark of ABB Group.

All other brand or product names mentioned in this document may be trademarks or

registered trademarks of their respective holders.

1.3. Guarantee

Please inquire about the terms of guarantee from your nearest ABB representative.

1.4. Use of symbols

This document includes caution and information icons that point out safety-related

conditions or other important information. The corresponding icons should be

interpreted as follows:

Although caution hazards are associated with equipment or property damage, it

should be understood that operation of damaged equipment could, under certain

operational conditions, result in degraded process performance leading to personal

injury or death. Therefore, comply fully with all caution notices.

The caution icon indicates important information or warning related

to the concept discussed in the text. It might indicate the presence of

a hazard which could result in corruption of software or damage to

equipment or property.

The information icon alerts the reader to relevant facts and

conditions.

1MRS755163 Bus Connection

Module

RER 133

Technical Description

2. Safety information

Dangerous voltages can occur on the connectors, even though the

auxiliary voltage has been disconnected.

National and local electrical safety regulations must always be

followed.

The device contains components which are sensitive to electrostatic

discharge. Unnecessary touching of electronic components must

therefore be avoided.

Only a competent electrician is allowed to carry out the electrical

installation.

Non-observance can result in death, personal injury or substantial

property damage.

Breaking the sealing tape of the device will result in loss of warranty

and proper operation will no longer be guaranteed.

1MRS755163

RER 133

Technical Description

Bus Connection

Module

3. General

The RER 133 Bus Connection Module acts as an interfacing unit between an

RE_54_ host device and a SPA, Modbus or DNP 3.0 system. The RER 133 module

converts RS-232 signals to RS-485 signals. RS-485 can be connected by using 2- or

4-wire mode.

The RER 133 module is connected by a cable to the RS-232 D-type connector

marked X3.2 on the rear panel of the RE_ 54_ host device. RER 133 is not a stand

alone device. An RE_ 54_ host device is always required to power the module. No

external power supply is supported.

RER 133 supports communication speeds from 300 to 19200 bits/s. Collision

detection and collision avoidance is supported for communication speeds 4800,

9600 and 19200 bits/s.

A RER 133 delivery includes the RER 133 Bus Connection Module, a connection

cable (1MRS120542) and this manual.

1MRS755163 Bus Connection

Module

RER 133

Technical Description

4. Principle of operation

The RER 133 Bus Connection Module is designed to work with RE_ 54_ products.

The module utilizes the RS-232 communication port located on the rear panel of the

RE_ 54_. The module is not designed to be connected to any other ABB product,

nor to any third party products.

The signal levels and the functionality of the RER 133 module are defined in the

RS-485 standard. RER 133 module is a regular type of RS-485 interface, meaning

that a maximum of 32 nodes can be connected in a daisy chain type of bus

configuration.

Collision detection on the RS-485 bus is supported when a maximum of 32 nodes

are connected to the same daisy chain. In order for collision detection to operate, the

communication speed has to be set to 4800, 9600 or 19200 bits/s. These speeds are

set by using the DIP switches on the front of the module. For an example on how to

set these DIP switches, please see section “Module configuration” on page 9. When

collision detection is not used, the communication speed does not have to be set.

A050315

Fig. 4.-1 Daisy chain

REF 542 and REF 542plus are not supported by RER 133.

1MRS755163

RER 133

Technical Description

Bus Connection

Module

5. Construction and installation

The RER 133 module is mounted on the side of the RE_ 54_ host device and is

connected by the supplied cable to the 9-pin female type D-connector (X3.2) of the

RE_ 54_ host device.

A050316

Fig. 5.-1 RER 133 mounted on a REF 54_ host device

The RER 133 module consists of a printed circuit board and is housed in a metal

case. Because shielded cables and an RS-485 interface is used, special attention

must be paid to the grounding.

The dimensions of the case are: 95 mm x 101 mm x 30 mm (95 mm x 105 mm x 38

mm with mounting bracket).

Only the cable supplied with the RER 133 may be used to connect

the RER 133 module to the RE_ 54_.

1MRS755163 Bus Connection

Module

RER 133

Technical Description

A050317

Fig. 5.-2 Dimensions of the RER 133 Bus Connection Module

5.1. Module configuration

The attributes for the RER 133 can be set through the two DIP switches on the front

of the module. The DIP switches are labeled S1 and S2.

Fig. 5.1.-1 Settings for the S1 DIP switch

Fig. 5.1.-2 Settings for the S2 DIP switch

101 4

Switch S1 Usage

1 2-wire enable

2 4-wire enable

3 Set communication speed to 19200 bits/s

4 Set communication speed to 9600 bits/s

5 Set communication speed to 4800 bits/s

6 Not connected

7 Not connected

8 Not connected A050318

Switch S2 Usage

1 4-wire pull-down enable

2 4-wire termination enable

3 4-wire pull-up enable

4 2-wire pull-down enable

5 2-wire termination enable

6 2-wire pull-up enable

7 Not connected

8 Not connected A050318

4 wire mode requires both the 2- and 4- wire switches for pull-down/

termination/pull-up to be set.

432

1MRS755163

RER 133

Technical Description

Bus Connection

Module

5.2. Configuration examples

A050319

Fig. 5.2.-1 4-wire, terminated, 19200 bits/s, pull-up and pull-down active

A050320

Fig. 5.2.-2 4-wire, no termination, 9600 bits/s

A050321

Fig. 5.2.-3 2-wire, terminated, 19200 bits/s, pull-up and pull-down active

A050322

Fig. 5.2.-4 2-wire, no termination, 4800 bits/s

432

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