IEC 60870-5 dynamic data references

An IEC60870-5 point is defined by its outstation name, point type, Information Object Address (ioa), and optionally, a point name. When adding points to an outstation, use the following general guidelines:

• All references begin with "Telem_Server_" prepended to the Scope Name.

• Each point type (AI, AO, etc.) has its own unique set of point numbers. Note that AI_1 is different than AO_1.

• Information Object Addresses (IOAs) must be unique across the outstation.

• The valid range of IEC 60870 IOAs is 1 to 16,777,216. The Telemetry Server does not limit this range, however, values are device-specific and many devices will impose a much smaller number than 16,777,216 for their upper limit.

Point types

A point in IEC 60870-5 can be defined as any of the following data types:

Reference syntax

The general syntax for references is as follows, but there are variations between analog and digital point types:

Telem_Server_<ScopeName>:%<OutstationFullName>;<PointType>;<IOA>;[<PointName>]

If you specify the PointName, enclose the name in brackets.

When the optional <PointName> parameter is not specified, a default name is automatically assigned to the point. The name is in the format "<PointType>_<IOA>."

To create the point in a different group, add the group name to the PointName with a "." separator, as follows:

Telem_Server_<ScopeName>:%<OutstationFullName>;<PointType>;<IOA>;[<GroupName>.<PointName>]