Cause of Transmission

ValueDescription
0not used
1periodic, cyclic per/cyc
2background scan3 back
3spontaneous spont
4initialized init
5request or requested req
6activation act
7activation confirmation actcon
8deactivation deact
9deactivation confirmation deactcon
10activation termination actterm
11return information caused by a remote command retrem
12return information caused by a local command retloc
13file transfer file
14..19reserved for further compatible definitions
20interrogated by station interrogation inrogen
21interrogated by group 1 interrogation inro1
22interrogated by group 2 interrogation inro2
23interrogated by group 3 interrogation inro3
24interrogated by group 4 interrogation inro4
25interrogated by group 5 interrogation inro5
26interrogated by group 6 interrogation inro6
27interrogated by group 7 interrogation inro7
28interrogated by group 8 interrogation inro8
29interrogated by group 9 interrogation inro9
30interrogated by group 10 interrogation inro10
31interrogated by group 11 interrogation inro11
32interrogated by group 12 interrogation inro12
33interrogated by group 13 interrogation inro13
34interrogated by group 14 interrogation inro14
35interrogated by group 15 interrogation inro15
36interrogated by group 16 interrogation inro16
37requested by general counter request reqcogen
38requested by group 1 counter request reqco1
39requested by group 2 counter request reqco2
40requested by group 3 counter request reqco3
41requested by group 4 counter request reqco4
42..43reserved for further compatible definitions
44unknown type identification
45unknown cause of transmission
46unknown common address of ASDU
47unknown information object address
48..63for special use (private range)