SMC Networks HRSH090 Series, Operation Manual

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HRX-OM-R026
Chapter 5 Display and setting of various functions
HRSH Series 5.21 Communication function
5-71
4.
Select serial protocol from the table below with [
▲] key or [▼] key, and confirm by
pressing “SEL”.
Table 5.21-3 List of set value
Set value Explanation
Initial value
(Default setting)
MODBUS protocol

Simple communication protocol 1
Simple communication protocol 2

3

3
：
When the setting of the contact input 2 is “Remote signal”, “Simplified communication protocol
2” cannot be set.
Communication specification Setting and checking
5.
Press the [SEL] key once.
The set screen of communication specification is displayed on the digital display.
6.
Select communication specification from the table below with [
▲] key or [▼] key, and
confirm by pressing “SEL”.
Table 5.21-4 List of set value
Set value Explanation
Initial value
(Default setting)
RS-232C standard
RS-485 standard

RS-485 terminal Setting and checking
7.
Press the [SEL] key once.
The set screen of RS-485 terminal is displayed on the digital display.
8.
Select RS-485 terminal from the table below with [
▲] key or [▼] key, and confirm by
pressing “SEL”.
Table 5.21-5 List of set value
Set value Explanation
Initial value
(Default setting)
Without terminal

With terminal
PV
SV
PV
SV