ProSoft Technology PLX8X-MNET-61850 - Manual (Page 135)

PLX8x-MNET-61850 ♦ Communication Gateway Diagnostics and Troubleshooting
Modbus TCP/IP to IEC 61850 User Manual
ProSoft Technology, Inc. Page 135 of 228
May 14, 2014
5.8 ProSoft gateway Troubleshooting
When doing detailed trouble- shooting, ProSoft Technology’s engineering and
technical support group uses MMS Ethereal. With it, the stream of data can be
analyzed, from both the IEC 61850 and Modbus TCP/IP points of view. Looking
at the data in this way may be useful when troubleshooting.
ISO 9506-1:2003 and ISO 9506-2:2003, along with RFC 1006, make up the
protocols used for MMS (IEC-61850-8-1).
Example screen snapshot:
This is an IED responding to a MMS request with an object-non-existent error
(code = 10).
These are the possible Data Access Errors, from ISO 9506-2:
DataAccessError ::= INTEGER {
object-invalidated (0),
hardware-fault (1),
temporarily-unavailable (2),
object-access-denied (3),
object-undefined (4),
invalid-address (5),
type-unsupported (6),
type-inconsistent (7),
object-attribute-inconsistent (8),
object-access-unsupported (9),
object-non-existent (10),
object-value-invalid (11)
} (0..11)