GE 350

CHAPTER 2: RS485 INTERFACE DNP PROTOCOL SETTINGS
SR3 SERIES PROTECTIVE RELAY PLATFORM – COMMUNICATIONS GUIDE 2-7
□ Configurable
Requires Application Layer Confirmation:
□ Never
□ Always
⊠ When reporting Event Data
⊠ When sending multi-fragment responses
□ Sometimes
□ Configurable
Timeouts while waiting for:
Data Link Confirm: ⊠ None □ Fixed □ Variable □ Configurable
Complete Appl. Fragment: ⊠ None □ Fixed □ Variable □ Configurable
Application Confirm: □ None ⊠ Fixed at 10 s □ Variable □ Configurable
Complete Appl. Response: ⊠ None □ Fixed at ___ □ Variable □ Configurable
Others:
Transmission Delay: No intentional delay
Need Time Interval: Configurable (default = 24 hrs.)
Select/Operate Arm Timeout: 10 s
Binary input change scanning period: 8 times per power system cycle
Analog input change scanning period: 500 ms
Counter change scanning period: 500 ms
Frozen counter event scanning period: 500 ms
Sends/Executes Control Operations:
WRITE Binary Outputs ⊠ Never □ Always □ Sometimes □
Configurable
SELECT/OPERATE □ Never ⊠ Always □ Sometimes □ Configurable
DIRECT OPERATE □ Never ⊠Always □ Sometimes □ Configurable
DIRECT OPERATE – NO ACK □ Never ⊠ Always □ Sometimes □ Configurable
Count > 1 ⊠ Never □ Always □ Sometimes □ Configurable
Pulse On □ Never □ Always ⊠ Sometimes □ Configurable
Pulse Off □ Never □ Always ⊠ Sometimes □ Configurable
Latch On □ Never □ Always ⊠ Sometimes □ Configurable
Latch Off □ Never □ Always ⊠ Sometimes □ Configurable
Queue ⊠ Never □ Always □ Sometimes □
Configurable
Clear Queue ⊠ Never □ Always □ Sometimes □ Configurable
Explanation of ‘Sometimes’: Object 12 points are mapped to Virtual Inputs and Commands (Force
Coils). Both “Pulse On” and “Latch On” operations perform the same function in the 3 Series relay ;
that is, the appropriate Virtual Input or Coil is put into the “On” state. The On/Off times and Count
value are ignored. “Pulse Off” and “Latch Off” operations put the appropriate Virtual Input or Coil into
the “Off” state. “Trip” and “Close” operations both put the appropriate Virtual Input or coil into the
“On” state if a paired mapping is set, otherwise “Trip” will put into “Off” and “Close” will put into “On”.
Reports Binary Input Change Events when no
specific variation requested:
Reports time-tagged Binary Input Change
Events when no specific variation
requested:
□ Never □ Never
⊠ Only time-tagged ⊠ Binary Input Change With Time
□ Only non-time-tagged □ Binary Input Change With Relative Time
□ Configurable □ Configurable (attach explanation)
Sends Unsolicited Responses: Sends Static Data in Unsolicited Responses:
□ Never ⊠ Never
□ Configurable □ When Device Restarts
DNP 3.0 Device Profile