ABB RER 133 Parts list manual
RER 133
Bus Connection Module
Technical Description
RER 133
Technical Description
©Copyright 2005 ABB Oy, Distribution Automation, Vaasa, FINLAND3
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
4
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.
Copyright © 2005 ABB Oy
All rights reserved.
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
5
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.
6
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
7
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.
8
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
9
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
95
101 4
79
8
30
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.
18
7
6
5
432
ON
18
7
6
5
432
ON
10
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
18
7
6
5
432
ON
18
7
6
5
432
ON
S1
S2
18
7
6
5
432
ON
18
7
6
5
432
ON
S1
S2
18
7
6
5
432
ON
18
7
6
5
432
ON
S1
S2
18
7
6
5
432
ON
18
7
6
5
432
ON
S1
S2
Table of contents
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