DEVICE_MODE vs BLOCK_MODE

DEVICE_MODE and BLOCK_MODE produce different PLC datablock layouts.

The main difference between them is:

• DEVICE_MODE produces 1 PLC DB block per device and groups all the registers within that DB - grouping all blocks.
  • 1 block per device - irrespective of number of SILECS blocks.
  • When minimizing PLC block usage this mode should be used when low number of devices is needed with a lot of registers.
• BLOCK_MODE produces 1 PLC DB block per SILECS "block" (Acquisition-Block, Setting-Block, Command-Block) - grouping all devices.
  • 1 block per SILECS block - irrespective of number of devices.
  • When minimizing PLC block usage this mode should be used when low number of blocks is needed with a lot of different devices.
  • Here an example.