Saia-Burgess
Controls Ltd.
Hardware Manual for the PCD3 Series│Document 26/789; Version E 5│31.01.2005
Communication interfaces
4
4-4
Protocols on serial ports
4.2.2 Serial S-Net
Supports the S-Bus protocol on serial interfaces (RS 232, RS 485/422, USB, modem)
in Master/Slave operation. The Saia
®
S-Bus with its simple and secure protocol is part
of the basic set up of all PCDs.
Technical data
Transmission rates:
Up to 115 kbps on S-Bus protocol, high net data rates
because of low protocol overhead
Number of stations:
Up to 254 stations in segments of 32 stations each
4.2.3 Profi S-Net
The “Private Control Network” (PCN) includes all protocols and services for operating
Saia
®
units (SPS, RIO, HMI, PG) on the Profibus. Supports multi-protocol operation
on the same connector and cable.
Technical data
Transmission rates:
Up to 1.5 Mbps
Number of stations:
Up to 124 stations in segments of 32 stations each
Protocols:
Profi-S-Bus, Profi-S-I/O, DP Slave, HTTP
4.2.4 Ether S-Net
The “Private Control Network” (PCN) includes all protocols and services for operating
Saia
®
units (SPS, RIO, HMI, PG) on the Ethernet. Supports multi-protocol operation
(S-Bus, S-IO, HTTP, SMTP) on the same connector and cable.
Technical data
Connection:
10 Base-T/100 Base TX (RJ45)
Speed:
10/100 Mbps (auto-sensing)
Protocols:
TCP/IP or UDP/IP, Ether-S-Bus, Ether-S-I/O,
HTTP, SMTP
4.2.5 Protocols implemented in the user program
Based on Character mode (and a very good knowledge of LI programming), any
desired protocols can be implemented.
Our system partners have already done this for a large number of protocols, enabling
our controllers to communicate with components from a variety of manufacturers, e.g.
via Modbus, M-Bus etc.
Please refer to the Links page at
www.sbc-support.ch
for links to system partners.
