Saia-Burgess Controls AG
Hardware manual for PCD3 series │ Document 26-789 ENG19│ 2018-06-29
Communication interfaces
5-11
USB PGU interface for programming device connection
5
5.3.8
Ethernet RJ-45 and Profibus
SBC S-Net, the network concept by Saia Burgess
Controls, is based on the open standard Profibus and
Ethernet. Ethernet includes layers 1 and 2 of the ISO/
OSI layer model. Based on layer 2, a variety of different
protocols and applications can be operated in parallel in
the same network.
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Saia PCD3.M
Additionally, the Profibus layer 2 (
Field Data Link
, FDL) also allows parallel
operation of various application protocols such as DP, FMS and others. By
using this option, Profi-S-Net can create a Private Control Network (PCN) on the
Profibus. This will make all SBC devices active network participants.
Profibus layer 2 (FDL) is integrated in the operating system of the CPU
PCD3.Mxxx0 and the RIOs PCD3.T76x. These devices thereby have a Profi-S-Net
connection with transfer rates of up to 1.5 Mbit/s.
The devices support Profibus DP and S-Net on the same port. In this way
networks based on Profibus can be set up in a cost-effective and flexible way
(detailed information can be found in TI 26-381).
Since the summer of 2010, the full-duplex mode and Auto-MDIX can be operated
via the Ethernet connection of the PCD3 family (PCD3.M2xxx, PCD3.M3xxx,
PCD3.M5xxx and PCD3.M6xxx).
The easiest way to determine if your PCD3 already supports these functions, is to
verify that the RJ-45 connectors are equipped with LEDs. If this is tha case, the
Saia PCD
®
supports the full-duplex mode and auto-MDIX (auto-crossing of the
signals).
The following hardware version or higher is required for full Duplex and Auto MDIX
support:
●
PCD3.M3xxx, PCD3.M5xxx and PCD3.M6xxx from hardware F
●
PCD3.M2x30A4T1 and PCD3.M2x30A4T3 from hardware B
●
PCD3.M2x30A4T5 from hardware C
Devices with Ethernet full-duplex mode can be recognized by the two LEDs on the
RJ-45 connector (left image).
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Saia PCD3.M
3330
Saia PCD3.M
Ethernet connection equipped with LEDs
Ethernet connection without LEDs