Function: As a VME interface for communication with Profibus networks, SST-PB3-VME-1 includes one Profibus network interface (or channel), while SST-PB3-VME-2 includes two independent interfaces controlled by independent CPUs, each executing downloadable application firmware modules.
Features: Each channel can serve as a DP master and DP slave, sending and receiving FDL (Layer 2) messages, supporting Class 1 and Class 2 master messages, supporting simultaneous operation in all modes mentioned above, supporting standard Profibus baud rates, supporting 16 bit transmission, etc.
Byte order: Adopting Intel style (small end) byte order, for host systems using Motorola (large end) byte order, byte order must be compensated for in the software.