ASE2000 V2 Communication Test Set User Manual 159
26.3.1. DNP3 Serial – Options Sub-Tab (Exchange Mode)
Certain DNP3 Serial protocol speciîš¿c properties can be entered from the Options sub-tab in the
Properties menu below the DNP3 Serial tab. Following is the Options menu for DNP3 Serial in
Exchange Mode.
Asynch. Properties
DNP3 Serial protocol octets are transmitted as 8 data bits, 1 stop bit, and no parity. The ASE2000
initializes these parameters as deîš¿ned by the protocol, but allows them to be changed (primarily
for device testing). Sending a message after any parameter is changed will cause a data reception
error at any compliant device.
Misc DNP3
AP Fragment Size – DNP3 denes the maximum application fragment size to be 2048 octets.
The ASE2000 can be conîš¿gured to use a lesser size in messages it transmits. This îš¿eld does
not alter the ASE2000’s ability to parse incoming messages.
Time Base – Time in messages generated by the ASE2000 can use either local time or UTC.
UTC is the current DNP3 standard.
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