Siemens 7SR224 - IEC60870-5-101 Introduction

7SR224 Argus Data Comms
5.4 IEC60870-5-101 Introduction
This section describes the IEC 60870-5-101 protocol implementation in the relays. The control system or local
PC acts as the master in the system with the relay operating as a slave responding to the master’s commands.
This protocol can be set to use any or all of the relays hardware interfaces (USB, Fibre Optic, RS232 and RS485).
Cause of Transmission
Shaded boxes are not required.
Blank = function or ASDU is not used.
Mark type identification/cause of transmission combinations:
“X” if used only in the standard direction
The cause of transmission (COT) for each information object type is listed below.
periodic, cyclic background scan spontaneous initialized request or requested activation activation confirmation deactivation deactivation confirmation activation termination return info caused by a remote cmd return info caused by a local cmd file transfer interrogated by group <number> request by group <n> counter request unknown type identification unknown cause of transmission unknown common address of ASDU unknown information object address
1 2 3 4 5 6 7 8 9 10 11 12 13
20
to
36
37
to
41
44 45 46 47
<1> M_SP_NA_1
X X X XX X
<2> M_SP_TA_1
X X XX
<3> M_DP_NA_1
X X X XX X
<4> M_DP_TA_1
X X XX
<5> M_ST_NA_1
X X X XX X
<6> M_ST_TA_1
X X XX
<7> M_BO_NA_1
X X X X
<8> M_BO_TA_1
X X
<9> M_ME_NA_1
X X X X X
<10> M_ME_TA_1
X X
<11> M_ME_NB_1
X X X X X
<12> M_ME_TB_1
X X
<13> M_ME_NC_1
X X X X X
<14> M_ME_TC_1
X X
<15> M_IT_NA_1
X X
<16> M_IT_TA_1
X X
<17> M_EP_TA_1
X
<18> M_EP_TB_1
X
<19> M_EP_TC_1
X
<21> M_ME_ND_1
X X X X X
<30> M_SP_TB_1
X X X X
<31> M_DP_TB_1
X X X X
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