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PIXIT Template for Server Ed1/Ed2
Introduction
This document specifies the protocol implementation extra information for testing (PIXIT) of the IEC 61850
interface in IDF/IRF/ZLF with firmware version 0.9.0.
Together with the PICS and the MICS the PIXIT forms the basis for a conformance test according to IEC 61850-
10. The PIXIT entries contain information which is not available in the PICS, MICS, TICS documents or SCL file.
Each table specifies the PIXIT for applicable ACSI service model as structured in IEC 61850-10. The "Ed" column
indicates if the entry is applicable for IEC 61850 Edition 1 and/or Edition 2.
PIXIT for Association model
ID
Ed
Description
As1
1
Maximum number of clients that can set-up an
association simultaneously
As2
1,2 TCP_KEEPALIVE value. The recommended range is
1..20s
As3
1,2 Lost connection detection time
As4
-
Authentication is not supported yet
As5
1,2 What association parameters are necessary for
successful association
As6
1,2 If association parameters are necessary for
association, describe the correct values e.g.
As7
1,2 What is the maximum and minimum MMS PDU
size
As8
1,2 What is the maximum start up time after a power
supply interrupt
As9
1,2 Does this device function only as test equipment?
(test equipment need not have a non-volatile
configuration; but it cannot be part of the
substation automation system)
<additional items>
Value / Clarification
10
20 seconds
120 seconds (5 times KEEPALIVE)
Transport selector
Session selector
Presentation selector
AP Title
AE Qualifier
Association parameters are not
necessary for association
Max MMS PDU size
Min MMS PDU size
determined by the size of the
request.
35 seconds in normal situation
(when no control configuration
needs to be loaded)
No. It has non-volatile
configuration.
N
N
N
N
N
65000
Is
2
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