I’m using an AB7007/AB7072 to connect to Hamilton probes;
pH, Dissolved Oxygen and Viable Cell Density.
They require 24V supply but the Serial port of the AB7007/AB7072 produces only 5V.
I know it is possible to supply the probes with 24V independently but my questions are as follows;
If I have nothing drawing current across pins 1 (5VOUT) and 5 (Ground) of the Serial port, will this generate an error/red LED/prevent Ethernet/Modbus comms?
If an alarm is generated, can it be handled with some implementing some kind of resistive arrangement, to convince the Anybus it is connected properly?
Thanks in advance of a reply!