SMC Networks HRL100-A 40 Series User Manual

HRX-OM-X037
Chapter 3 Transport and Setting Up
HRL Series 3.3 Installation
3-27
 Connecting to PC
RS-485 cannot be directly connected to a normal PC. Use a RS-232C/RS485 converter
which is available on the market.
Be sure to follow the wiring procedure shown below for connecting multiple thermo-chillers.
 Configuration of connection
One thermo-chiller for one host computer, or multiple thermo-chillers for one host
computer.
(31 thermo-chillers can be connected at maximum.)
[Tips]
Both ends of the communication connection (the end nodes) need to be
connected to the host computer.
If the terminating resistor is required, please be connected by the customer.
3.3.9 RS-232C communication wiring
This product can operate the following by serial communication RS-232C.
-Control of Run/Stop
-Circulating fluid temperature setting
-Circulating fluid temperature reading
-Operation status reading
-Alarm condition reading
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 maching connector.
Table 3.3-8 communication connector
Connector specification
Dsub 9 pin female (socket) type
2
SD+
5
SG
7
SD-
SD+
SD-
SG
Terminal
Master
This product
(first slave)
2
SD+
5
SG
7
SD-
This product
(second slave)
2
SD+
5
SG
7
SD-
This product
(31 slaves)
st
resistance
resistance
Terminal
Do not connect any wire to other PIN numbers.

SMC Networks HRL100-A 40 Series Specifications

General

Brand	SMC Networks
Model	HRL100-A 40 Series
Category	Chiller
Language	English