Hi,

I need to retrieve alarm bits from the slave PLC S7-300 for the master device. In which data block should I add the alarm data? Can I use the instance data block of MODB_341 for this, or do I need to create a separate data block (source DB)? I'm using TIA Portal.

Note:

Communication - Modbus RTU Slave, RS 485 Interface

Hardware - In slave side ( S7-300 + CP-341 + Slave Dongle )

Software - TIA portal V13.

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Split from differences between the 6ES7870-1AB01-0YA0 and the 6ES7870-1AB01-0YA1 dongle.