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ETHERNET INTERFACE
1–40
DNP 3.0 Device Profile
Timeouts while waiting for:
Data Link Confirm:
Complete Appl. Fragment:
Application Confirm:
Complete Appl. Response:
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
SELECT/OPERATE
DIRECT OPERATE
DIRECT OPERATE – NO ACK
Count > 1
Pulse On
Pulse Off
Latch On
Latch Off
Queue
Clear Queue
Explanation of 'Sometimes': Object 12 points are mapped to Virtual Inputs. Both "Pulse On" and
"Latch On" operations perform the same function in the 345; that is, the appropriate Virtual Input 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 into the "Off" state.
Reports Binary Input Change Events when no
specific variation requested:
□ Never
⊠ Only time-tagged
□ Only non-time-tagged
□ Configurable
Sends Unsolicited Responses:
□ Never
□ Configurable
□ Only certain objects
⊠ Sometimes
⊠ ENABLE/DISABLE unsolicited Function codes
supported
Explanation of 'Sometimes': It will be disabled for
RS-485 applications, since there is no collision
avoidance mechanism. For Ethernet communication
it will be available and it can be disabled or enabled
with the proper function code.
CHAPTER 1: COMMUNICATIONS GUIDE
⊠ None
□ Fixed
⊠ None
□ Fixed
□ None
⊠ Fixed at 10 s □ Variable □ Configurable
⊠ None □ Fixed at ___ □ Variable □ Configurable
⊠ Never □ Always
□ Sometimes □Configurable
□ Never
⊠ Always
□ Sometimes □ Configurable
□ Never
⊠Always
□ Sometimes □ Configurable
□ Never
⊠ Always
□ Sometimes □ Configurable
⊠ Never
□ Always
□ Sometimes □ Configurable
□ Never
□ Always
⊠ Sometimes □ Configurable
□ Never
□ Always
⊠ Sometimes
□ Never
□ Always
⊠ Sometimes
□ Never
□ Always
⊠ Sometimes
⊠ Never
□ Always □ Sometimes
⊠ Never
□ Always □ Sometimes
Reports time-tagged Binary Input Change
Events when no specific variation
requested:
□ Never
⊠ Binary Input Change With Time
□ Binary Input Change With Relative Time
□ Configurable (attach explanation)
Sends Static Data in Unsolicited Responses:
⊠ Never
□ When Device Restarts
□ When Status Flags Change
No other options are permitted.
345 TRANSFORMER PROTECTION SYSTEM – COMMUNICATIONS GUIDE
□ Variable □ Configurable
□ Variable
□ Configurable
□ Configurable
□ Configurable
□ Configurable
□ Configurable
□ Configurable
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