GE 345

CHAPTER 1: COMMUNICATIONS GUIDE ETHERNET INTERFACE
345 TRANSFORMER PROTECTION SYSTEM – COMMUNICATIONS GUIDE 1–53
Type identifier and cause of transmission assignments (station-specific parameters)
are shown in the following tables. In these tables, shaded boxes (░) are not required,
black boxes (█) are not permitted in the companion standard, empty cells indicate the
functions or ASDU are not used, and a cross (╳) indicates availability only in the
standard direction.
Table 25: Cause of transmission numbers
Table 26: Cause of transmission assignments
Number Cause of transmission
1 Periodic, cyclic
2 Background scan
3 Spontaneous
4 Initialized
5 Request or requested
6 Activation
7 Activation confirmation
8 Deactivation
9 Deactivation confirmation
10 Activation termination
11 Return information caused by local command
12 File transfer
13 Interrogated by group <number>
20 to 36 Requested by group <n> counter request
37 to 41 Unknown type identification
44 Unknown cause of transmission
45 Unknown command address of ADSU
46 Unknown information object address
47 Unknown information object address
Type identification Cause of transmission
No. Mnemonic 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 ░ ╳░╳░░░░░╳╳░╳░░░░░
<2> M_SP_TA_1 ░░█░█░░░░░██░░░░░░░
<3> M_DP_NA_1 ░ ░ ░░░░░ ░ ░░░░░
<4> M_DP_TA_1 ░░█░█░░░░░██░░░░░░░
<5> M_ST_NA_1 ░ ░ ░░░░░ ░ ░░░░░
<6> M_ST_TA_1 ░░█░█░░░░░██░░░░░░░
<7> M_BO_NA_1 ░ ░ ░░░░░░░░ ░░░░░
<8> M_BO_TA_1 ░░█░█░░░░░░░░░░░░░░
<9> M_ME_NA_1 ░ ░░░░░░░░ ░░░░░
<10> M_ME_TA_1 ░░█░█░░░░░░░░░░░░░░
<11> M_ME_NB_1 ╳ ╳░╳░░░░░░░░╳░░░░░
<12> M_ME_TB_1 ░░█░█░░░░░░░░░░░░░░
<13> M_ME_NC_1 ░ ░░░░░░░░ ░░░░░
<14> M_ME_TC_1 ░░█░█░░░░░░░░░░░░░░
<15> M_IT_NA_1 ░░╳░░░░░░░░░░░╳░░░░
<16> M_IT_TA_1 ░░█░░░░░░░░░░░█░░░░