Schweitzer Engineering Laboratories SEL-351 - Page 588

H-4 Distributed Network Protocol (DNP) V3.00 Date Code 20001006
SEL-351 Instruction Manual
Maximum Data Link Re-tries:
¨ None
¨ Fixed at
þ Configurable, range 0 to 15
Maximum Application Layer Re-tries:
þ None
¨ Configurable, range to
(Fixed is not permitted)
Requires Data Link Layer Confirmation:
¨ Never
¨ Always
¨ Sometimes If 'Sometimes', when?
þ Configurable If 'Configurable', how? by settings.
Requires Application Layer Confirmation:
¨ Never
¨ Always (not recommended)
þ When reporting Event Data (Slave devices only)
¨ When sending multi-fragment responses (Slave devices only)
¨ Sometimes If 'Sometimes', when?
¨ Configurable If 'Configurable', how?
Timeouts while waiting for:
Data Link Confirm ¨ None ¨ Fixed at ¨ Variable þ Configurable
Complete Appl. Fragment þ None ¨ Fixed at ¨ Variable ¨ Configurable
Application Confirm ¨ None ¨ Fixed at ¨ Variable þ Configurable
Complete Appl. Response þ None ¨ Fixed at ¨ Variable ¨ Configurable
Others
Attach explanation if 'Variable' or 'Configurable' was checked for any timeout.
Sends/Executes Control Operations:
WRITE Binary Outputs ¨ Never þ Always ¨ Sometimes ¨ Configurable
SELECT/OPERATE ¨ Never þ Always ¨ Sometimes ¨ Configurable
DIRECT OPERATE ¨ Never þ Always ¨ Sometimes ¨ Configurable
DIRECT OPERATE - NO ACK ¨ Never þ Always ¨ Sometimes ¨ Configurable
Count > 1 þ Never ¨ Always ¨ Sometimes ¨ Configurable
Pulse On ¨ Never þ Always ¨ Sometimes ¨ Configurable
Pulse Off ¨ Never þ Always ¨ Sometimes ¨ Configurable
Latch On ¨ Never þ Always ¨ Sometimes ¨ Configurable
Latch Off ¨ Never þ Always ¨ Sometimes ¨ Configurable
Queue þ Never ¨ Always ¨ Sometimes ¨ Configurable
Clear Queue þ Never ¨ Always ¨ Sometimes ¨ Configurable
Attach explanation if 'Sometimes' or 'Configurable' was checked for any operation.
FILL OUT THE FOLLOWING ITEM FOR MASTER DEVICES ONLY:
Expects Binary Input Change Events:
¨ Either time-tagged or non-time-tagged for a single event
¨ Both time-tagged and non-time-tagged for a single event
¨ Configurable (attach explanation)
Courtesy of NationalSwitchgear.com