[SOLVED] Simpel Modbus Multi Node setup HOW ?

Projects Networking, Protocols, and Devices
4

Hmm got it half working now :slight_smile:

When i change the next code on the master between packet2 and PRESET_MULTIPLE_REGISTERS

// write 1 register starting at address 1
modbus_construct(packet2, 2, PRESET_MULTIPLE_REGISTERS, 1, 1, writeRegs);

And on the slave i change the last digit to 2

modbus_update_comms(9600, SERIAL_8N2, 2);

Then he sees indeed the command comming in 8).

But now the slave wont report back tot the master :sleeping:.

*edit

Never mind :cold_sweat: then i also have to change the read command to listen to module 2 ]:smiley: it works now! Time to test more.