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350 FEEDER PROTECTION SYSTEM – COMMUNICATIONS GUIDE
DNP ETHERNET PROTOCOL SETTINGS
CHAPTER 3: ETHERNET INTERFACE
DNP port allocation
The DNP Eth Channel 1 Port and DNP Eth Channel 2 Port settings select the
communications port assigned to the DNP protocol for each Ethernet channel. When this
setting is set to "Network-TCP" the DNP protocol can be used over TCP/IP channels 1 or 2.
When this value is set to "Network-UDP" the DNP protocol can be used over UDP/IP on one
channel only.
□
Only certain objects
□
When Status Flags Change
⊠
Sometimes
No other options are permitted.
⊠
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.
Default Counter Object/Variation:
Counters Roll Over at:
□
No Counters Reported
□
No Counters Reported
□
Configurable (attach explanation)
□
Configurable (attach explanation)
⊠
Default Object: 20
⊠
16 Bits
Default Variation: 1
⊠
Point-by-point list attached
□
Other Value: _____
⊠
Point-by-point list attached
Sends Multi-Fragment Responses:
⊠
Yes
□
No
DNP 3.0 Device Profile
Channel 1 Port
Channel 2 Port
DNP Availability
None
None
DNP not available over Ethernet port
None
NETWORK-TCP
One Master over TCP
None
NETWORK-UDP
"Various" Masters over UDP
NETWORK-TCP
None
One Master over TCP
NETWORK-TCP
NETWORK-TCP
Two Masters over TCP
NETWORK-TCP
NETWORK-UDP
One Master over TCP and "various" Masters over UDP
NETWORK-UDP
None
"Various" Masters over UDP
NETWORK-UDP
NETWORK-TCP
"Various" Masters over UDP and one Master over TCP
NETWORK-UDP
NETWORK-UDP
"Various" Masters over UDP