Designed to read and write to IEC 61850/61400-25 Servers. IEC 61850 is based on MMS (Manufacturing Message Specification, ISO 9506). Only the
TCP/IP profile is supported. GOOSE is not supported.
This IEC 61850 client can handle any current or future data models (IEC
61850-7-4xx for Substations, Hydro Power, Decentralized Energy Resources. IEC
61400-25-2 for Wind Power). The SCL (System Configuration Language) file is not required because the
data model is extracted from the device when the device first comes online.
Channel Configuration

| Browse File |
File to load and store objects for this channel. This
file is automatically generated and all objects are saved to this file
on channel shutdown. Objects are loaded from this file at channel
start up. This filename must be unique for each channel. File
extracted from the device are also stored in this directory. This
field must not be empty, a filename must be entered. |
| Max MMS PDU Size |
Maximum MMS PDU size called to MMS Server. |
| Time Bias |
Time offset in minutes to be added to events reported
to OPC clients. |
| Quality Bits Mapping |
Map .q quality bits to OPC Quality Codes. The default
mapping is to map .q01 to .q05 to OPC Quality Codes 40, 18, d8, 54 and
50. Set to "C0" to stop the mapping. |
| Flatten Browse Tree |
Flatten tree when browsing device objects. |
| Max writes per write request |
Set to 0 for no limit to the number of write requests that can be sent in a single write request. |
| Application Logging |
Log Application layer diagnostics. |
| Presentation Logging |
Log Presentation layer diagnostics. Decode
MMS message. |
| Session Logging |
Log Session layer diagnostics. |
| Transport Logging |
Log Transport layer diagnostics. |
| Link Logging |
Log Link layer diagnostics. |
| Configure Unsolicited Information Reports |
Uncheck to stop IOServer from enabling/disabling
unsolicited information reports at device startup. |
| Unsolicited Information Report |
Name of unsolicited information report. |
| Status |
Enable this unsolicited information report. |
Device Configuration

Variable Types

File Transfer from device
Writing an empty string to .File will return the name of the next file to
be transferred in .File.
Writing the filename of the file to be extracted to .File will cause that file
to be extracted. An empty .File will be reported when the file is finally
extracted.
Writing a directory name terminated by '\' will cause fileDirectory request
to be issued.
In the OPC Gateway set "Device.File = Device.File". This will cause
all unextracted files from the top level directory to be extracted whenever the OPC client writes an empty
string to .File.
All files extracted will be stored under the Browse Directory. A file is
considered unextracted if its timestamp is newer than a file of the same name in
this directory.
Multiple reads and writes
Port.Max Input Queue Length controls the maximum number of read or write
requests that can be packed into each MMS read or write request. IOServer will
automatically stop polling for an item if it receive an unsolicited
InformationReport for that item.
Tested IEC61850 Servers
GE D60 Protection Relay
SEL 421
NettedAutomation srvapp.exe demo UCA2 server
Performance
IOServer running on a AMD Athlon XP 1600+ under Windows 2000 Advanced Server
will accept more than 800 unsolicited InformationReports per second |