Saia S-Bus ID:14

Interface Description

The IGSS32 SAIA S-BUS communication interface offers connection to all Saia PLCs supporting the S-BUS protocol. The SAIA S-BUS protocol can be used in both direct point-to-point and multidrop configurations. It can also be used in dialled-up applications using leased lines or public tele-network. The coommunication driver uses an industri standard RS232-C serial interface on the PC and supports all three SAIA S-BUS communication modes: parity, break and data mode.

For more information on the supported SAIA PCD series PLCs:

The IGSS32 system polls the PLC equipment cyclically according to one of four user-defined time intervals. The time intervals are configurable from 100 milliseconds to 999 seconds. The system automatically groups process data in data blocks – thus fully exploiting the the communication link in relation to the present configuration.

Technical Data

Electrical Interface : RS232
Protocol : SAIA S-BUS (break, parity or data mode)
Types of data : String, Fixed point 8, 16, 32, BCD 16, 32, IEEE Float, P8 Float and integer.
PLC types supported : All SAIA PCD series PLCs supporting the SAIA S-BUS Protocol.
Addressing : Node (PLC), data type (Register (16 and 32 bit), input, output, flags, timer and counter), Type index, bit offset.
Supported platforms : Windows Vista, Windows XP, Windows 2003 Server, Windows 2000
Max. telegram size : 128 bytes pr. Telegram
Transmission speed : Up to 115Kbaud depending on the PLC port speed.
Communication mode : Half duplex
Throughput : Up til 4 telegrams pr. Channel pr. Second (depending on available bandwidth).
Max. number of channels : Up to 8 COM ports are supported concurrently.
Max. number of nodes : 1 pr. COM port
PC hardware requirements : 1-8 standard serial ports (COM ports). Standard modem(s) if dialled-up is used.
PC software requirements : None