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DF1

DOWNISO/OSI Model
DOWNApplicable Products

Developed by Allen-Bradley for communication between control and substations, DF1 is the successor protocol to the "Data Highway" or "Data Highway Plus" protocols (see also ANSI X3.28) by the same company.
Like its predecessor protocol, it is based on the American ANSI X3.28 standard.

ISO/OSI Model

7 Application Layer DF1 Application Layer
6 Presentation Layer n/a
5 Session Layer n/a
4 Transport Layer n/a
3 Network Layer n/a
2 Link Layer ANSI X3.28
1 Physical Layer RS232 (V.24), RS485

Applicable Products

ipConvipConvUniversal protocol converter for highest degree of flexibility
Details...
product/ipConv/en/ipConv_en.pdf
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