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Copyright This document and parts thereof must not be reproduced or copied without written permission from ABB, 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.
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This document has been carefully checked by ABB but deviations cannot be completely ruled out. In case any errors are detected, the reader is kindly requested to notify the manufacturer.
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(Low-voltage directive 2006/95/EC). This conformity is the result of tests conducted by ABB in accordance with the product standards EN 50263 and EN 60255-26 for the directive, and with the product standards EN 60255-6 and EN 60255-27 for the directive.
Section 1 1MAC306892-MB C Introduction Section 1 Introduction This manual The communication protocol manual describes a communication protocol supported by the protective relay. The manual concentrates on vendor-specific implementations. Intended audience This manual addresses the communication system engineer or system integrator responsible for pre-engineering and engineering for communication setup in a substation from a protective relay perspective.
Section 1 1MAC306892-MB C Introduction Product documentation 1.3.1 Product documentation set Application manual Engineering manual Installation manual Operation manual Technical manual Communication Protocol manual Protocol Points List manual Figure 1: The intended use of manuals in different lifecycles The engineering manual contains instructions on how to engineer the protective relay using the different tools in PCM600.
1.3.3 Related documentation Product-specific point list manuals and other product series- and product-specific manuals can be downloaded from the ABB web site http://www.abb.com/ substationautomation. Symbols and conventions 1.4.1 Safety indication symbols The caution icon indicates important information or warning related to the concept discussed in the text.
Section 1 1MAC306892-MB C Introduction degraded process performance leading to personal injury or death. Therefore, comply fully with all warning and caution notices. 1.4.2 Manual conventions Conventions used in protective relay manuals. A particular convention may not be used in this manual.
Section 2 1MAC306892-MB C IEC 60870-5 overview Section 2 IEC 60870-5 overview IEC 60870-5 protocol The companion standards IEC 60870-5-101 and IEC 60870-5-104 are derived from the IEC 60870-5 protocol standard definition. It specifies a functional profile for basic telecontrol tasks. The IEC 60870-5 protocol stack is based on the reduced reference model called enhanced performance architecture (EPA).
Section 2 1MAC306892-MB C IEC 60870-5 overview 2.2.1 Unbalanced transmission When using unbalanced transmission, the controlling station controls the data traffic by polling the controlled outstations sequentially. In this case, the controlling station initiates all the message transfers while the controlled outstations can transmit only in response to the message from the controlling station.
Section 2 1MAC306892-MB C IEC 60870-5 overview 2.3.2 Event acquisition Events occur spontaneously at the controlled outstation's application level. The events are buffered in the controlled outstation because the events may appear faster than the communication link is able to transfer them. When unbalanced transmission is used on the link layer, the buffered events must be polled by the controlling station.
Section 2 1MAC306892-MB C IEC 60870-5 overview function checks the permissibility and the validity of the received command message, and operates if the check results are positive. The two-step command Select and execute is used by the controlling station to: •...
Section 3 1MAC306892-MB C Vendor-specific implementation Section 3 Vendor-specific implementation 615/620 series implementation 3.1.1 Internal IEC 61850 data modeling The protective relay is natively using the IEC 61850 data model for data processing. In practice, some data which is not used by the system database might not be available. Furthermore, the data must be enabled in an IEC 61850 dataset to be able to be reported by IEC 60870-5-101/104.
Section 3 1MAC306892-MB C Vendor-specific implementation 3.2.1 Configuring IEC 60870-5-101 To configure one protocol instance to work as IEC 60870-5-101 slave, configure the parameters to enable basic communication. • Port According to the physical wiring, set either to "IEC101-COM1" or "IEC101- COM2".
Section 3 1MAC306892-MB C Vendor-specific implementation • COT Length Should be set to 2. The standard requires COT Length set to 2 in both the master and the slave devices. • IOA Length Usually, set to 3. This setting must have the same value in the master and slave devices.
Section 3 1MAC306892-MB C Vendor-specific implementation Knowing that the missed data is not included in the interrogation list, the client can skip interrogation. If the addresses are configured to same (default), only one indication is sent regardless if the data is included in the interrogation or not. 3.3.3 Overflow situation clearing Overflow situation clearing is applicable only for the keep oldest events...
Section 3 1MAC306892-MB C Vendor-specific implementation • Control operation is denied by the circuit breaker itself because of, for example, interlocking. • Remote Mode is not enabled. Addressing scheme 3.5.1 Default addresses There are some protection functions, which are not available in this protective relay, but might be available in other protective relays in the 615/620 series.
Section 3 1MAC306892-MB C Vendor-specific implementation In the balanced mode, ClientIP is the address where the protective relay tries to connect when the communication is started. Once connected, the communication continues with that client. In the unbalanced mode, ClientIP defines the address from where the client's communication initiative is accepted.
Section 3 1MAC306892-MB C Vendor-specific implementation 3.6.6 Link mode • Unbalanced • Balanced (default) The settings defines the link mode. In the unbalanced mode, the protective relay listens for the client's commands and responds when needed. In the balanced mode, the protective relay opens the connection and sends a spontaneous report when something happens.
Section 3 1MAC306892-MB C Vendor-specific implementation 3.6.10 ASDU address length • Min: 1 • Max: 2 • Default: 1 • Unit: bytes In some communication frames, the ASDU address is defined. The length of ASDU address element is configurable and should be set to the same value throughout the network.
Section 3 1MAC306892-MB C Vendor-specific implementation Select the time format which is supported by the client. 3.6.14 Event time • Local • UTC (default) The setting selects between the time stamp modes for event reporting. 3.6.15 Overflow mode • Oldest+Indication (default) •...
Section 3 1MAC306892-MB C Vendor-specific implementation 3.6.17 OvInd NoGI IOA Applicable only if Overflow mode is set to "Oldest+Indication". • Min: 0 • Max: 255/65535/16777215 • Default: 60000 The protective relay generates an overflow indication event with this address if the lost event is not included in any of the interrogation groups.
Section 3 1MAC306892-MB C Vendor-specific implementation 3.6.20 Cyclical period • Min: 1 • Max: 604800 • Default: 10 • Unit: seconds Cyclical period is the periodical timer for the cyclical data sending. The maximum of 604800 seconds means one week. 3.6.21 Transmit window •...
Section 3 1MAC306892-MB C Vendor-specific implementation • Max: 255000 • Default: 15000 • Unit: ms In case of longer data transmission in one direction only, an S format has to be sent in the other direction to acknowledge the APDUs before buffer overflow or time out. t2 is the time-out for acknowledges in case of no data messages.
Section 3 1MAC306892-MB C Vendor-specific implementation 3.7.4 Physical errors The Physical errors counter shows the number of detected errors on the physical layer since last the startup or a diagnostic reset. 3.7.5 Link errors The Link errors counter shows the number of detected errors on the link layer since the last startup or a diagnostic reset.
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Section 3 1MAC306892-MB C Vendor-specific implementation RER620 Communication Protocol Manual...
Section 4 1MAC306892-MB C IEC 60870-5-101 and IEC 60870-5-104 parameters Section 4 IEC 60870-5-101 and IEC 60870-5-104 parameters Parameter list Table 3: IEC 60870-5-101 and IEC 60870-5-104 settings Parameter Values (range) Unit Step Default Description Port 1 0=Not in use 0=Not in use Port selection for instance 1 1=IEC101 - COM1...
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Section 4 1MAC306892-MB C IEC 60870-5-101 and IEC 60870-5-104 parameters Parameter Values (range) Unit Step Default Description Event Order 1 0=Accurate time 0=Accurate time Selects the event ordering principle 1=Preserve chronology Selection Timeout 1 1...65 Selection time-out for control SBO operations Cyclical Period 1 1...604800 Cyclical period in seconds...
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Section 4 1MAC306892-MB C IEC 60870-5-101 and IEC 60870-5-104 parameters RER620 Communication Protocol Manual...
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Section 5 1MAC306892-MB C Glossary Section 5 Glossary ANSI American National Standards Institute ASDU Application-layer service data unit DNP3 A distributed network protocol originally developed by Westronic. The DNP3 Users Group has the ownership of the protocol and assumes responsibility for its evolution. Data terminal equipment Electromagnetic compatibility Enhanced performance architecture...
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Section 5 1MAC306892-MB C Glossary RER620 Communication Protocol Manual...
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