G-4 Distributed Network Protocol (DNP) 3.00 Date Code 20010731
SEL-352-1, -2 Instruction Manual
Maximum Data Link Frame Size (octets):
Transmitted 292
Received (must be 292)
Maximum Application Fragment Size (octets):
2048
(if >2048, must
be configurable)
2048
(must be >249)
Maximum Data Link Re-tries:
r None
r Fixed at
ã Configurable, range 0 to 15
Maximum Application Layer Re-tries:
ã None
r Configurable, range to
(Fixed is not permitted)
Requires Data Link Layer Confirmation:
r Never
r Always
r Sometimes If ’Sometimes’, when?
ã Configurable If ’Configurable’, how? by settings.
Requires Application Layer Confirmation:
r Never
r Always (not recommended)
ã When reporting Event Data (Slave devices only)
r When sending multi-fragment responses (Slave devices only)
r Sometimes If ’Sometimes’, when?
r Configurable If ’Configurable’, how?
Time-outs while waiting for:
Data Link Confirm
r None r Fixed at r Variable ã Configurable
Complete Appl. Fragment
ã None r Fixed at r Variable r Configurable
Application Confirm
r None r Fixed at r Variable ã Configurable
Complete Appl. Response
ã None r Fixed at r Variable r Configurable
Others
Attach explanation if ’Variable’ or ’Configurable’ was checked for any time-out.
Sends/Executes Control Operations:
WRITE Binary Outputs
r Never ã Always r Sometimes r Configurable
SELECT/OPERATE
r Never ã Always r Sometimes r Configurable
DIRECT OPERATE
r Never ã Always r Sometimes r Configurable
DIRECT OPERATE - NO ACK
r Never ã Always r Sometimes r Configurable
Count > 1
ã Never r Always r Sometimes r Configurable
Pulse On
r Never ã Always r Sometimes r Configurable
Pulse Off
r Never ã Always r Sometimes r Configurable
Latch On
r Never ã Always r Sometimes r Configurable
Latch Off
r Never ã Always r Sometimes r Configurable
Queue
ã Never r Always r Sometimes r Configurable
Clear Queue
ã Never r Always r Sometimes r Configurable
Attach explanation if ’Sometimes’ or ’Configurable’ was checked for any operation.
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