What is ASDU address?

The optional second byte of the Cause of Transmission field is the Originator Address. It is the address of the originating controlling station so that responses can be routed back to it. Common Address of ASDU (1 or 2 bytes) – the address of the target station or the broadcast address.

What is 104 protocol?

IEC 60870-5-104 Protocol (aka IEC 104) is a standard for telecontrol equipment and systems with coded bit serial data transmission in TCP/IP based networks for monitoring and controlling geographically widespread processes.

What is IEC 608705 101 104 standard?

IEC 60870-5-104 (also known as IEC 870-5-104) is an international standard, released in 2000 by the IEC (International Electrotechnical Commission). IEC 60870-5-104 enables communication between control station and substation via a standard TCP/IP network.

What is the difference between 101 and 104 protocol?

The differences are mainly in the representation of timestamp information. While IEC-101 uses timestamp of type CP24Time2a, that can represent timing information from one hour down to a millisec- ond, IEC-104 uses CP56Time2a which extends the one hour to 100 years with the same granu- larity of one millisecond.

What is Modbus communication protocol?

Modbus is a communication protocol developed by Modicon systems. In simple terms, it is a method used for transmitting information over serial lines between electronic devices. The device requesting the information is called the Modbus Master and the devices supplying information are Modbus Slaves.

What is DNP3 protocol specification?

Distributed Network Protocol 3 (DNP3) is a set of communications protocols used between components in process automation systems. Its main use is in utilities such as electric and water companies. Usage in other industries is not common.

What are the aims of IEC 61850?

The objective of IEC 61850 is to dramatically improve device data integration into the information and automation technology, reducing the costs for engineering, commissioning, operation, monitoring, diagnostics, asset management, and maintenance and increasing the agility of the whole life cycle of a substation.

What is the common address of the ASDU?

CA ASDU length Common Address of ASDU (Application Service Data Unit) length. 1 or 2 bytes. IOA length Information Object Address length – IOAs are in the ASDU. 1 to 3 bytes. Data polling time The interval of regular requests from router to IEC 60870-5- 101 telemetry for data.

How is the 16 bit ASDU address divided?

The 16 bit ASDU address can be divided in maximum 4 bit-fields. In the default division the address is byte by byte structured ( 8 + 8 ). But also any other values can be set ( e. g. 2 + 6 + 8 ). The entry begins always from the higher bit and the sum of all bits must be of course 16.

What does iproute do for ASDU filtering?

ASDU filtering. ipRoute allows ASDU filtering in control and monitoring directions based on the ASDU address (Common ASDU address). In control direction (downlink), ASDUs may either be sent to all or only to specified ASDU addresses. Broadcast ASDUs are dispatched to all connected devices.