
Possibilities of communication with
SAIA PLC's from the
Saia-Burgess Controls company
(
www.sbc-support.ch):
The standard solution for communication with
SAIA devices
is to use the PROMOTIC driver:
PmSBUS -
Driver for communication with SAIA and DIGIControl devices
by S-BUS/S-BUS+ protocol
.
This driver communicates through
serial link or
Ethernet
(i.e.
"Serial-S-Net" or
"Ether-S-Net" communication type).
An
OPC server from other firms
and the
PmOPCClient PROMOTIC component
can also be used for the communication.
Then the PROMOTIC application will communicate as a client
by the
OPC interface,
i.e. by the
PmOpcClient object, the PROMOTIC will be connected to the OPC server
and thus communicate with the devices.
PLC types:
- PCS1: compact, max. transfer rate of 38400 kB, Ethernet not supported,
- PCD1: max. transfer rate of 38400 kB, Ethernet supporetd
- PCD2: max. transfer rate of 38400 kB, for PCD2.M480 up to 115200 kB, Ethernet supported
- PCD3: max. transfer rate of 115200 kB, Ethernet supported
- PCD4: out of production
Notes:-
On Ethernet network (Ether-S-Net)
the S-Bus protocol is not sent with the full network speed
- but about 2-times faster than the fastest serial link
(information from the year 2007).
-
For the
Profi-S-Net communication type
(
S-Bus packed to
PROFIBUS)
the Promotic Ethernet driver can be used
in cooperation with HW
Profi-S-Link converter.
-
Other communication options
(
Modbus,
M-BUS,
ProfiNet,
etc)
can also be used, but the
S-Bus protocol is the best for vizualization.