1.4 Link layer Capabilities Current value If configurable, list methods
○ None 3 PST or LHMI
(DLinkRetries)
○ Fixed at
● Configurable, range 0 to 255
○ Configurable, selectable from ____,____,____
○ Configurable, other, describe:
1.4.8 Maximum number of octets transmitted in a data link frame: This number includes the CRCs. With a length field of 255, the maximum
size would be 292.
● Fixed at 292 292
○ Configurable, range ________ to _______
○ Configurable, selectable from ____,____,____
○ Configurable, other, describe:
1.4.9 Maximum number of octets that can be received in a data link frame: This number includes the CRCs. With a field length of 255, the
maximum size would be 292. The device must be able to receive 292 octets to be compliant.
● Fixed at 292 292
○ Configurable, range ________ to _______
○ Configurable, selectable from ____,____,____
○ Configurable, other, describe:
Table 7: Application layer
1.5 Application layer
Capabilities Current value If configurable, list methods
1.5.1 Maximum number of octets transmitted in an application layer fragment other than file transfer: This size does not include any transport
or frame octets.
– Masters must provide a setting less than or equal to 249.
– Outstations must provide a setting less than or equal to 2048.
Note: The current value of this outstation parameter is available remotely using protocol object Group 0 Variation 240.
○ Fixed at 2048 PST or LHMI
(ApLayMaxTxSize)
● Configurable, range 20 to 2048
○ Configurable, selectable from ____,____,____
○ Configurable, other, describe:
1.5.2 Maximum number of octets transmitted in an application layer fragment containing file transfer:
○ Fixed at
● Configurable, range 256 to 65535
○ Configurable, selectable from ____,____,____
○ Configurable, other, describe:
1.5.3 Maximum number of octets that can be received in an application layer fragment:
– Masters must provide a setting greater than or equal to 2048.
– Outstations must provide a setting greater than or equal to 249.
Note: The current value of this outstation parameter is available remotely using protocol object Group 0 Variation 241.
Table continues on next page
1MRK 511 419-UUS A Section 3
DNP3 protocol implementation
650 series 2.2 ANSI 37
Point list manual
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