Wiring multiple digital devices - 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

The maximum number of HMP60/HMP110 probes that you can connect to a system over the RS-485 interface is 32 when the communication speed is 19200 bps or lower. Do not use RS-485 termination with HMP60/HMP110 series probes.

Connecting other devices can decrease the maximum number of HMP60/HMP110 probes. If other devices require the use of termination, connect HMP60/HMP110 probes using an RS-485 repeater.
Figure 1. Wiring multiple devices using local power supply. The following figures show the recommended wiring when connecting multiple devices to the RS-485 interface using either a separate local power supply for each device or a common power supply.
Figure 2. Wiring multiple devices using common power supply