Using multiple devices over RS-485 - HMP110 - HMP113 - HMP60 - HMP63

HMP60 and HMP110 Series User Guide

Document code
M211060EN
Revision
L
Language
English
Product
HMP110
HMP113
HMP60
HMP63
Document type
User guide

When you use HMP60/HMP110 series probes for Modbus communication over the RS-485 interface, the maximum number of HMP60/HMP110 probes that can be connected to a system is 32 (with a communication speed of 19200 bps or lower).

RS-485 termination must not be used with HMP60/HMP110 series probes.
Connecting other devices can decrease the maximum number of HMP60/HMP110 probes that can be connected. If other devices require the use of termination, HMP60/HMP110 series probes must be connected using an RS-485 repeater.