35   TC-6.3.4.15-6.3.4.20: Aggressive Mode; 7.7.3.1.1: Critical ASDU

Created: 26 Dec 2023

Status: Approval (N/A)

Part: Part 100-1 (2018, Edition 1)

Links:

Page: 36-38

Clause: 6.3.4.15 to 6.3.4.20; 7.7.3.1.1

Paragraph: ASDU 83 Aggressive Mode Authentication Request

Issue

Test Condition: DUT is a IEC 60870-5-104 slave implementation without File Transfer support. The DUT implementation considers the supported mandatory critical ASDU (commands) to be responded with ACTCON and ACT_TERM as non-critical (in base protocol), as defined in IEC 60870-5-7:2013 chapter 5.
DUT sends “each segment as large as possible” as recommended in IEC 60870-5-7:2013 7.2.6.

Description: Due to the described test conditions, DUT doesn’t send S_AR_NA_1 ASDU 83.

Proposal

Resolution: Mentioned test cases should be Optional or Conditional to the PICS implementation