Appendix B: Dnp3 Communication Protocol; Dnp3 Communication Protocol; Dnp3 - Iskra MC320 User Manual

APPENDIX B: DNP3 COMMUNICATION PROTOCOL
APPENDIX B: DNP3
COMMUNICATION PROTOCOL
DNP3 communication protocol
Modbus and DNP3 protocol are enabled via RS232 or RS485 or USB communication port. The response is the
same type as the request.
DNP3
DNP3 protocol enables operation of device on DNP3 networks. For device with serial communication the DNP3
protocol enables point to point (for example Device to PC) communication via RS232 communication and multi
drop communication via RS485 communication.
Object Variation
Number Number
0 242 Device Attributes ‐ software version
0 243 Device Attributes – hardware version
0 246 Device Attributes – user assigned ID
0 248 Device Attributes – serial number
0 250 Device Attributes – product name
0 252 Device Attributes – manufacture name
Device Attributes – nonspecific all
0 254
attributes request
Device Attributes – list of attribute
0 255
variation
Software version
0
Hardware version
0
user assigned ID
0
serial number
0
product name
0
manufacture name
0
Object Variation
Number Number
10 0 Binary output status with flag
10 2 Binary output status with flag
Measuring centres – MC320, MC330, MC350 & MC350H ‐ User's Manual
Object
Description
Points for object 0
T_Str3 Data
T_Str2 Data
T_Str2 Data
T_Str8 Data
T_Str16 Data
T_Str20 Data
Object
Description
Request
Function
Qualifier
Codes
Codes (hex)
(dec)
1 00
1 00
1 00
1 00
1 00
1 00
1 00, 06
1 00, 06
242
var
243
var
246
var
248
var
250
var
252
var
Request
Function
Qualifier
Codes
Codes (hex)
(dec)
1 6
1 00, 01 ,06
Response
Function Qualifier
Codes (dec) Codes (hex)
129 00, 17
129 00, 17
129 00, 17
129 00, 17
129 00, 17
129 00, 17
129 00, 5B
Response
Qualifier
Function
Codes
Codes (dec)
(hex)
129 00, 01
59