The IEC standard TASE.2 (also referred to as IEC 60870-6) enables the exchange of time-critical information between control systems via WAN and LAN. TASE stands for 'Telecontrol Application Service Element', it is identical to the ICCP protocol and contains these individual standards:

  • IEC 60870-6-503
    TASE.2 Services and protocols
  • IEC 60870-6-702
    Functional profile for providing the TASE.2 application service in end systems
  • IEC 60870-6-802
    TASE.2 Object models


7 Application Layer TASE.2
MMS ISO 9506
6 Presentation Layer ISO 8823/8825
ASN.1, BER (Basic Encoding Rules)
ISO/IEC 8824.1
5 Session Layer Connection oriented session
ISO/IEC 8327
4 Transport Layer ISO/IEC 8073 TP4RFC 1006 ISO/IEC 8073 TP0 over TCPRFC 1070 ISO/IEC 8073 TP4 over UDP
3 Network Layer CLNP - ISO/IEC 8473IP (RFC 791)
2 Link Layer ISO/IEC 8802-2 LLC
1 Physical Layer ISO/IEC 8802.3

Implemented Protocol Stacks

TASE.2, Client

TASE.2, Server

Applicable Products

  • ipConv

    Universal protocol converter for highest degree of flexibility


  • HVDC
    HVDC, New Zealand

    Products: ipConv ipConvLite
    Protocol Stacks: DNP V3.00, Slave DNP V3.00, Master TASE.2, Server TASE.2, Client Modbus, Master Simatic TDC, Master

  • Communication Node for TASE.2, ELCOM-90
    Communication Node for TASE.2, ELCOM-90, Germany

    Products: ipConv
    Protocol Stacks: IEC 60870-5-104, Slave TASE.2, Server Modbus, Slave ELCOM-90 Responder, Server