HRX-OM- T002
Chapter 5 Display and setting of various functions
HRS090 Series
5.20
Communication function
5-69
4.
Select a serial communication protocol with [
▲] key or [▼] key, and press [SEL] key to
enter.
Table 5.20-3 Setting of serial communication protocol
Set value
Explanation
Initial value
(Default setting)
MODBUS protocol
✓
Simple communication protocol 1
Simple communication protocol 2
3
3
：
When the contact input signal 2 is set to
“remote signal”, it is not possible to set to “simple
communication protocol 2”.
Setting/Checking: Communication specification
5.
Press the [SEL] key once.
Setting screen of the communication specification is displayed on the digital display.
PV
SV
6.
Select communication specification with [
▲] key or [▼] key, and press [SEL] key to
enter.
Table 5.20-4 Setting of communication specification
Set value
Explanation
Initial value
(Default setting)
RS-232C standard
RS-485 standard
✓
Setting/Checking: Terminal for RS-485
7.
Press the [SEL] key once.
Setting screen of terminal for RS-485is displayed on the digital display.
PV
SV
8.
Perform a setting of terminal for RS-
485 with [▲] key or [▼] key, and press [SEL] key to
enter.
Table 5.20-5 Setting of terminal for RS-485
Set value
Explanation
Initial value
(Default setting)
No terminal
✓
Terminal is set.
