ProSoft Technology PLX81-EIP-61850 - Manual (Page 122)

Reference PLX8x-EIP-61850 ♦ Communication Gateway
User Manual Server to
IEC 61850 Client
Page 122 of 167 ProSoft Technology, Inc.
July 2, 2015
T YPE : This is the IEC-61850 data type of the tag.
IEC 61850 Data Type Number of Bytes
BOOLEAN 1
INT8 1
INT16 2
INT24 4
INT32 4
INT128 Not Supported
INT8U 1
INT16U 2
INT24U 4
INT32U 4
FLOAT32 4
FLOAT64 Not Supported
Enum 2
Dbpos 2
Tcmd 1
Quality 2
Timestamp 8
VisString32 102
VisString64 102
VisString255 102
Octet64 64
EntryTime 4
Unicode255 102
BitString 1
Check 1
When you choose E XPORT AOI F ILES , ProSoft ProSoft 61850 Configuration
Manager prompts you for a location of the AOI for each IED defined in the
project. The Add-On Instruction file (.L5X) contains Tag Names, Data Types and
the logic rungs to be used in an RSLogix 5000 project.
5.7.2 Example: Energy Application:
 The IEC 61850 protocol specification was written with electrical substations in
mind.
 The PLC wants all data you have defined as relevant, including time stamp
and quality bits from all IEDs. It sends this data to a dispatching system. In
this case, the PLC is like a data concentrator from the substation to the
dispatching center.
 You wantss Open and Close control with tight time constraints. The controls
need to be as fast as possible.
One typical example for this kind of application might be 20 IEDs, where the
gateway needs to send all the relevant data from all 20 IEDs to the PLC.
Typically, this would be approximately 250 data points per IED.