HRX-OM-S010
Chapter 1 Read before using
1.1
Communication mode and operation method
HRS100/150 Series
1-4
Chapter 1 Read before using
The communication of this device consists of contact input/output communication
and serial communication.
MODBUS communication and simple communication protocol can be selected
as the serial communication protocol.
Depending on the customer’s specification,
communication can be changed to contact input/output communication or serial
communication.
Table 1-1
Communication method
Contact input/output communication
This product is equipped with a terminal which runs/stops the
product by remote control and a terminal which can pick up alarm
signals. The terminals can be changed depending on the
customer’s application.
Serial
communication
MODBUS
standard
protocol
Serial communication (RS-485/RS232C) enables remote control of
run/start of the product, temperature setting, and details of product
condition and alarm condition can be obtained.
Simple
communication
protocol
Serial communication (RS-485/RS232C) enables remote control of
temperature setting.
This protocol complies with SMC thermo-cooler HRG, HRGC
series.
(We recommend using the MODBUS protocol if you are unfamiliar
with using the communication function.)
There are two ways to start and stop by simple communication
protocol. The customer can choose between operation using the
Operation display panel (simple communication protocol 1) and
remote control using the contact input (simple communication
protocol 2).
●
If using contact input/output communication, refer to chapter 2.
●
If using serial communication MODBUS, refer to chapter 3 for
serial communication specifications first, then refer to chapter 4
for protocol specifications.
●
If using simple communication protocol for serial
communication, refer to chapter 3 for serial communication
specifications first, then refer to chapter 5 for protocol
specifications.
