7.6 Firmware Data Memory Regions

This section shows the data memory regions defined in the PL360 device depending on which PLC communication stack is used.

The only difference between PRIME and G3 communication stacks regarding data memory regions is the number of transmission messages that can be simultaneously queued. In case of G3, only one message can be queued. In case of PRIME, two transmission messages can be queued simultaneously. This is possible because there are two transmission buffers defined in the PRIME PL360 embedded firmware, TX0 and TX1.

CAUTION: In both cases, G3 and PRIME, upper layers are responsible for managing multiple TX times in order to avoid collisions between them.