Can anyone help me read 1 register (8193) in Modbus TCP?
I've already installed libmodbus and also collectd-mod-modbus, but I'm new and have questions about how to proceed.
I need to read this bool register and if it is TRUE, send an email warning that there was a system failure.
v 19.07.10
Maybe look at the NUT and apcupsd code which have Modbus support in them? (different programs than openwrt)