Both Slave and Master source code feature are detailed as below.
ü All data objects and request-response procedure of IEC60870-5-101 are implemented except for file transmission.
ü All data in realtime database are monitored to be encoded many different frames by the different COT.
ü The source code is easy to be embedded to substation or power t&d scada.
ü The source code is compatible to IEC 60870-5.
ü With the source code, many SCADA system can be easily inter-operation.
ü User are quickly grasp the source code referring to the DEMO.
|
Network
configuration þ point to point þ multiple-point party line þ multiple point-to-point þ multiple-point
star |
|
Link layer Link transmission procedure address field of link □ balanced transmission □ not present (only for Balance) þ unbalanced transmission þ one octet þ two octets □ structured þ unstructured |
|
When using an
unbalanced link layer,the following ASDU types are returned in class 2
messages(low priority) with the indicated causes of transmission: Type
identification
Cause of
transmission 9，11，13，21
<1> <2> In
response to a class 2 poll ,a controlled station may response with class 1
data when there is no class 2 data available. |
|
Application
layer |
|
Common
address of ASDU þ One octet þ Two octets |
|
Information
object address þ One octet □ structured þ Two octets þ unstructured þ Three octets |
|
Cause of transmission þ One octet þ Two octets (with originator address) Originator addressis set tozero if not used |
|
Selection
of standard ASDU |
|
|
|
<1>
M_SP_NA_1 |
þ |
|
|
<2> M_SP_TA_1 |
þ |
|
|
<3> M_DP_NA_1 |
þ |
|
|
<4> M_DP_TA_1 |
þ |
|
|
<5>
M_ST_NA_1 |
þ |
|
|
<6> M_ST_TA_1 |
þ |
|
|
<7> M_BO_NA_1 |
þ |
|
|
<8> M_BO_TA_1 |
þ |
|
|
<9> M_ME_NA_1 |
þ |
|
|
<10> M_ME_TA_1 |
þ |
|
|
<11> M_ME_NB_1 |
þ |
|
|
<12> M_ME_TB_1 |
þ |
|
|
<13> M_ME_NC_1 |
þ |
|
|
<14> M_ME_TC_1 |
þ |
|
|
<15> M_IT_NA_1 |
|
|
|
<16> M_IT_TA_1 |
þ |
|
|
<17> M_EP_TA_1 |
þ |
|
|
<18> M_EP_TB_1 |
þ |
|
|
<19> M_EP_TC_1 |
þ |
|
|
<20> M_PS_NA_1 |
þ |
|
|
<21> M_ME_ND_1 |
þ |
|
|
<30> M_SP_TB_1 |
þ |
|
|
<31> M_DP_TB_1 |
þ |
|
|
<32> M_ST_TB_1 |
þ |
|
|
<33> M_BO_TB_1 |
þ |
|
|
<34> M_ME_TD_1 |
þ |
|
|
<35> M_ME_TE_1 |
þ |
|
|
<36> M_ME_TF_1 |
þ |
|
|
<37> M_IT_TB_1 |
þ |
|
|
<38> M_EP_TD_1 |
þ |
|
|
<39> M_EP_TE_1 |
þ |
|
|
<40> M_EP_TF_1 |
þ |
|
|
<45> C_SC_NA_1 |
þ |