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DF1 ISO/OSI Model
Applicable 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
 | ipConv | Universal protocol converter for highest degree of flexibility
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