SMC Networks HRS018-A 20 R Series - RS-232 C Communication Wiring

HRX-OM-W058
Chapter 3 Transport and Setting Up
HRS-R Series 3.3 Installation
3-19
3.3.7 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 done by
remote control.
Refer to the Communications Operation Manual for more details.
 Wiring of communication cable
Be sure to wire as shown in the figure below.

Configuration
1 master : 1 thermo-chiller
 Do not connect any wire to other PIN numbers.
Fig. 3-12 Connection of RS-232C
2
3
5
RD
SD
SG
2
3
5
RD
SD
SG
Master This product
Be sure to shut off the breaker of the facility power supply (the user’s
machine power supply) before wiring.