Table 6: Link layer
1.4 Link layer Capabilities Current value If configurable, list methods
1.4.1 Data Link Address: Indicates if the link address is configurable over the entire valid range of 0 to 65,519. Data link addresses 0xFFF0
through 0xFFFF are reserved for broadcast or other special purposes.
○ Fixed at______ 1 PST or LHMI
(SlaveAddress)
● Configurable, range 0 to 65519
○ Configurable, selectable from ____,____,____
○ Configurable, other, describe:
1.4.2 DNP3 Source address validation: Indicates whether the Outstation will filter out requests not from a specific source address.
● Never Always PST or LHMI
(ValMasterAddress)
● Always, one address allowed (shown in 1.4.3)
○ Always, any one of multiple addresses
allowed (each selectable as shown in 1.4.3)
○ Sometimes, explain:
1.4.3 DNP3 source address(es) expected when validation is enabled: Selects the allowed source address(es).
○ Configurable to any 16 bit DNP Data Link
Address value
1 PST or LHMI
(MasterAddress)
● Configurable, range 0 to 65519
○ Configurable, selectable from ____,____,____
○ Configurable, other, describe:
1.4.4 Self Address Support using address 0xFFFC: If an Outstation receives a message with a destination address of 0xFFFC it shall respond
normally with its own source address. It must be possible to disable this feature if supported.
● Yes (only allowed if configurable) Yes PST or LHMI
(AddrQueryEnbl)
● No
1.4.5 Sends confirmed user data frames: A list of conditions under which the device transmits confirmed link layer services
(TEST_LINK_STATES, RESET_LINK_STATES, CONFIRMED_USER_DATA).
● Never Never PST or LHMI
(DLinkConfirm)
● Always
● Sometimes, explain:
1.4.6 Data link layer confirmation time-out: This time-out applies to any secondary data link message that requires a confirm or response (link
reset, link status, user data, etc).
○ None 2 seconds PST or LHMI
(tDLinkTimeout)
○ Fixed at ms
● Configurable, range 0 to 60 s
○ Configurable, selectable from ___,___,___ms
○ Configurable, other, describe:
○ Variable, explain:
1.4.7 Maximum data link retries: The number of times the device will retransmit a frame that requests link layer confirmation.
Table continues on next page
Section 3 1MRK 511 419-UUS A
DNP3 protocol implementation
36 650 series 2.2 ANSI
Point list manual
To Next Page
Loading...
