SMC Networks HRR010-A-10 Series, Operation Manual

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HRX-OM-X084
Chapter 3 Transport and Setting Up
3.3 Installation HRR Series
3-18
3.3.8 RS-232C communication wiring
Serial communication RS-232C, operation start/stop, setting and reading of
circulating fluid temperature, and reading of alarm condition can be
performed by remote control.
Refer to Operation Manual
“Communication Function” for more details.

RS-232C communication connector
The following connector is used for this product as RS-232C communication
connector.Please prepare suitable mating connector.
Table 3-9 RS-232C communication connector
Connector specification (this product side)
Dsub 9 pin female (socket) type

Wiring of communication cable
Be sure to wire as shown in the figure below.

Configuration
One thermo-chiller for one master.
Fig. 3-9 Connection of RS-232C
2
3
5
R D
S D
S G
2
3
5
R D
S D
S G
Master This product
Be sure to turn OFF the breaker of the facility power supply (the
user's machine power supply) before wiring.
Do not connect any wire to other PIN numbers.