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DNP3 Master/DNP3 NET Client RTU Protocol Parameters
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Original instructions
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DNP3 Master/DNP3 NET Client RTU Protocol Parameters
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Original instructions
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Parameter
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Value scope
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Default value
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Description
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Session Count
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1...32
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1
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indicates the maximum session number on this channel
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Parameter
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Value scope
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Default value
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Description
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Rx Frame Size
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0...292
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292
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indicates the maximum received message frame size in the data link layer (bytes)
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Tx Frame Size
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0...292
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292
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indicates the maximum Transmit message frame size in the data link layer (bytes)
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Rx Frame Timeout (ms)
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0...4294967295
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15000
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indicates time-out while waiting for a complete frame after receiving frame synchronization
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Confirm Mode
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NEVER
SOMETIMES
ALWAYS
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NEVER
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specifies when to request for link layer confirmation
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Confirm Timeout (ms)
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0...4294967295
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2000
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indicates the maximum time to wait for link level confirmation if requested
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Max Retries
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0...255
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3
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indicates the retry count of link layer confirmation time-out
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Offline Poll Period (ms)
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0...4294967295
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10000
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specifies the period to re-establish communication for an offline session
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First Char Wait (ms)
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0...65535
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0
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indicates the minimum time between reception and transmission
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Rx Buffer Size
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0...65535
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256
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indicates the received buffer size of the serial port
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Rx Fragment Size
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0...256
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2048
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indicates the maximum message frame length in the data link layer (bytes)
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Tx Fragment Size
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0...2048
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2048
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indicates the maximum message frame length in the data link layer (bytes)
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Max Queue Size
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0...2048
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0
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indicates the maximum request message number with specific Application Specific Data Unit type in the transmission queue
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Channel Response Timeout (ms)
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0...4294967295
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10000
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specifies how often to reestablish communication for an offline session
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Analog Mode (1)
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All 32-bits
Mixed Mode
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All 32-bits
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specifies dynamic memory allocation for analog points.
Behavior:
All 32-bits:
32 bits are always allocated, no matter if it is for 16 bits or 32 bits analog input/output.
Mixed Mode:
Memory allocation depends on the analog input/output variation (16 bits / 32 bits / float).
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1:This feature is available with firmware V1.7 or later. |
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Parameter
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Value scope
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Default value
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Description
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IP Address
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0...255.255.255.255
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192.168.0.1
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indicates the source address for this session
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Dest Port
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1...65534
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20000
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indicates the destination address for this session. IP Address of remote device (multiple address separate by semicolon). If configured as client, only one IP address should be given here.
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Local Address
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1...65520
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3
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indicates the source address for this session
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Slave Address
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1...65520 and FFFC hex
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4
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indicates the slave address for this session
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Default Response Timeout (ms)
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0...4294967295
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30000
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indicates the absolute maximum amount of time this device waits for the final response to a request. This time starts as soon as the request is put into the transmit queue.
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Parameter
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Value scope
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Default value
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Description
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|---|---|---|---|
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Link Status Period (ms)
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0...4294967295
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2500
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indicates the duration for sending link status requests, if no DNP3 frames are received on this session
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Auto Integrity Local
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check box
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checked
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sends integrity data poll after the local IIN bit is set and cleared
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Auto Integrity Timeout
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check box
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checked
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sends integrity data poll on time-out
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Auto Event Poll
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check box
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unchecked
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sends event data poll when class 1, 2, or 3 IIN bit is set
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Auto Delay Measure
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check box
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unchecked
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indicates the usage of delay measurement in time synchronization
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Auto Time Sync
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None/Serial/ LAN
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None
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performs time synchronization on required time:
None: no time sync
Serial: sync through serial link
LAN: sync through LAN
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Auto Unsolicited
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None/Enable/ Disable
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None
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automatically send unsolicited command upon remote device startup:
None: do not send unsolicited command
Enable: send enable command
Disable: send disable command
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Auto Enable Unsol Class1
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check box
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checked
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indicates which event classes is enabled for unsolicited reporting
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Auto Enable Unsol Class2
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check box
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checked
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indicates which event classes is enabled for unsolicited reporting
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Auto Enable Unsol Class3
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check box
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checked
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indicates which event classes is enabled for unsolicited reporting
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Read Timeout Allowed
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0...255
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0
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specifies number of times a read request is allowed to time-out before the session is considered offline
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