SMC Networks HRR012-W-20, HRR018-A-20, HRR018-W-20, HRR024-W-20, HRR030-W*-20 Operation Manual

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Page 1

HRX-OM-W004-A

Operation Manual

Communication function

Thermo-chiller

Air-Cooled

refrigerated type

HRR012-A

∗

-20-∗

HRR018-A

∗

-20-∗

HRR024-A

∗

-20-∗

HRR030-A

∗

-20-∗

Water-Cooled

refrigerated type

HRR012-W

∗

-20-∗

HRR018-W

∗

-20-∗

HRR024-W

∗

-20-∗

HRR030-W

∗

-20-∗

Keep this manual available whenever necessary

Page 2

To Users,

Thank you for purchasing SMC’s Thermo chiller (hereinafter referred to as the “product”).

For safety and long life of the product, be sure to read this operation manual (hereinafter referred to as the “manual”) and clearly understand the contents.

● Be sure to read and follow all instructions noted with “Warning” or “Caution” in this manual.

● This manual is intended to explain the installation and operation of the product. Only people

who understand the basic operation of the product through this manual or who performs installation and operation of or have basic knowledge about industrial machines are allowed to work on the product.

● This manual and other documents attached to the product do not constitute a contract, and will not affect any existing agreements or commitments.

● It is strictly prohibited to copy this manual entirely or partially for the use by the third party without prior permission from SMC.

Note: This manual is subject to possible change without prior notice.

Page 3

HRX-OM-W004

Contents

HRR Series

Contents

Chapter 1 Read before using ............................................................. 1-1

1.1 Communication mode and operation method ........................................................ 1-1

1.2 Communication port .................................................................................................. 1-3

1.3 Key operations ........................................................................................................... 1-4

1.4 Parameters ................................................................................................................. 1-8

Chapter 2 Contact input/output communication ............................. 2-1

2.1 Precautions for communication ............................................................................... 2-1

2.1.1 Precautions wiring communication ...................................................................................... 2-1

2.1.2 Precautions after wiring and before communication ............................................................ 2-1

2.2 Communication specification ................................................................................... 2-2

2.3 Connection explanation ............................................................................................ 2-2

2.4 Setting and checking ................................................................................................. 2-3

2.4.1 Setting and checking ............................................................................................................ 2-3

2.4.2 Setting and checking ............................................................................................................ 2-4

2.5 Contact input signal ................................................................................................ 2-12

2.5.1 Run/stop・Run・Stop・External switch signal ....................................................................... 2-13

2.5.2 Signal of the external switch .............................................................................................. 2-14

2.6 Contact output signal .............................................................................................. 2-16

Chapter 3 Serial communication ....................................................... 3-1

3.1 Precautions wiring communication ......................................................................... 3-1

3.2 Connected explanation ............................................................................................. 3-1

3.3 Communication specification ................................................................................... 3-2

3.4 MODBUS communication function .......................................................................... 3-3

3.5 Precautions for communication ............................................................................... 3-3

3.5.1 Precautions after wiring and before communication ............................................................ 3-3

3.5.2 Precautions for communicating ............................................................................................ 3-3

3.6 Setting and checking ................................................................................................. 3-4

3.6.1 Setting and checking items .................................................................................................. 3-4

3.6.2 Setting and checking ............................................................................................................ 3-5

3.7 Communication sequence ........................................................................................ 3-7

3.8 Message configuration .............................................................................................. 3-8

3.8.1 Message frame .................................................................................................................... 3-8

3.9 Function codes .......................................................................................................... 3-9

3.10 Checksum calculation method ............................................................................... 3-10

3.10.1 LRC(ASCII) ........................................................................................................................ 3-10

3.10.2 CRC(RTU) .......................................................................................................................... 3-10

3.11 Explanation of function codes ................................................................................ 3-12

3.11.1 Function code：04 Reading multiple registers .................................................................... 3-12

3.11.2 Function code：06 Writing registers .................................................................................... 3-13

3.11.3 Function code：16 Writing multiple registers ...................................................................... 3-14

Page 4

HRX-OM-W004 Contents

HRR Series

3.11.4 Function code：23 Reading/writing multiple registers ........................................................ 3-15

3.12 Negative response ................................................................................................... 3-16

3.13 Register Map ............................................................................................................ 3-18

3.13.1 Circulating fluid discharge temperature ............................................................................. 3-19

3.13.2 Circulating fluid flow rate ................................................................................................... 3-19

3.13.3 Circulating fluid discharge pressur .................................................................................... 3-19

3.13.4 Electric conductivity of the circulating fluid ........................................................................ 3-19

3.13.5 Status flag .......................................................................................................................... 3-19

3.13.6 Alarm flag........................................................................................................................... 3-20

3.13.7 Data instruction information ............................................................................................... 3-21

3.13.8 Data display ....................................................................................................................... 3-21

3.13.9 Circulating fluid set temperature ........................................................................................ 3-21

3.13.10 Operation Start Command................................................................................................. 3-21

3.13.11 Serial remote instruction .................................................................................................... 3-21

3.13.12 Data instruction .................................................................................................................. 3-22

Chapter 4 Communication alarm function ....................................... 4-1

4.1 Communication alarm occurs .................................................................................. 4-1

4.2 Communication alarm reset ...................................................................................... 4-2

4.3 Setting and checking ................................................................................................. 4-2

4.3.1 Setting and checking items.................................................................................................. 4-2

4.3.2 Setting and checking ........................................................................................................... 4-3

Page 5

HRX-OM-W004

Chapter 1 Read before using

HRR Series 1.1 Communication mode and operation method

1-1

Chapter 1 Read before using

The communication of this device consists of contact input/output communication and serial communication.

The serial communication protocol is a MODBUS communication. 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.

●If using contact input/output communication, refer to chapter 2.

●If using serial communication MODBUS, refer to chapter

1.1 Communication mode and operation method

LOCAL, DIO and SERIAL are available as the communication modes. Table

1.1-1 explains the communication modes. The default setting is

LOCAL.

The operation method depends on the communication mode. Table

1.1-2 shows how the communication mode and method of operation are related.

Page 6

HRX-OM-W004

Chapter 1 Read before using

1.1 Communication mode and operation method

HRR Series

1-2

Table 1.1-1 Communication modes.

Communication

mode

Explanation Setting Display

LOCAL

Run / stop and circulating fluid temperature setting are possible with the operation panel.

Select contact input signal function 1 selection to "OFF" (initial setting) / "SW".

None

DIO

REMOTE

Run / stop with contact input, and set circulating fluid temperature on the operation panel.

Select contact input signal function 1 selection as "RN.ST" / "RUN".

RMT Lamp Lighting up

LOCAL

Run / stop with the operation panel or contact input. Set the circulating fluid temperature on the operation panel.

When the operation of the contact input signal function 1 is selected as "MT" in the state of DIO REMOTE, it becomes "DIO LOCAL"

RMT Lamp Lighting up

SERIAL

Run / stop and circulating fluid temperature setting are possible with the serial communication

When serial remote instruction is valid, this mode is switched.

RMT Lamp Lighting up

Table 1.1-2 Communication mode and operation

LOCAL

DIO

SERIAL

DIO

LOCAL

DIO

REMOTE

Run/Stop control with operation display panel

○ ○ × ○

Circulating fluid discharge temperature setting control with operation display panel

○ ○ ○ ×

Except above with operation display panel

○ ○ ○ ○

Condition reading with operation display panel

○ ○ ○ ○

Run/Stop operation by contact input/output communication

× ○ ○ ×

Condition reading by contact input/output communication

○ ○ ○ ○

Reading of the external switch

○ ○∗1 ○∗1 ○

Run/Stop operation by serial communication.

× × × ○

Circulating fluid discharge temperature setting control by serial communication.

× × × ○

Condition reading by serial communication.

○ ○ ○ ○

∗1 Only one external switch can be installed.

Page 7

HRX-OM-W004

Chapter 1 Read before using

HRR Series 1.2 Communication port

1-3

1.2 Communication port

The communication port at the back of the product is used for communication. Fig 1.2-1 shows the location of the communication port.

Fig 1.2-1 Communication port

Dsub 15 pin female (socket) type

Dsub 9 pin female (socket) type

Connector for contact input / output signal

Serial communication connector

Page 8

HRX-OM-W004

Chapter 1 Read before using

1.3 Key operations

HRR Series

1-4

1.3 Key operations

Fig 1.3-1‘’Key operation(1/4)’’ and

Fig1.3-4 ‘’Key operation(4/4)’’ show the operation of keys of the thermo-chiller. This manual explains the “Communication setting menu”.

Fig 1.3-1 Key operation (1/4)

Main menu

Power supply ON

Allarm number (Allarm number maximum）

Alarm display menu

Allarm number

AL01

Allarm number (Alarm number minimum）

AL02

ALXX

XXALM

Basic setting mode

circulating fluid return temp

014

Circulating fluid outlet pressure

123

DIPV

Electric conductivity∗ (μS/cm)

PRESS

Circulating fluid flow rate

FLOW

RET ⇔ TEMP

▲/▼

200

Circulating fluid outlet temperature Circulating fluid set temperature

∗ Option D【Electric conductivity control function】 only

RESET

Displays only when the alam is generated.

Page 9

HRX-OM-W004

Chapter 1 Read before using

HRR Series 1.3 Key operations

1-5

Fig 1.3-2 Key operation (2/4)

Maintenance notification number (Maintenance number maximum）

Maintenance notification menu

Maintenance notification number

T01

Maintenance notification number (Notification number Minimum）

TNN

▲/▼

ANT

T02

Advanced

setting

mode

To switch to 「Advanced setting mode」 press and hold 「MENU」 key for 5 seconds

Press and hold

for approximately

5 second.

Displays only when the maintenance notice is generated.

Page 10

HRX-OM-W004

Chapter 1 Read before using

1.3 Key operations

HRR Series

1-6

Fig 1.3-3 Key operation (3/4)

EASY mode

resetKey cl ick sound

Electric conductivity set valve hysteresis*1

Unuse d

WAKE

250

DISP

DIHYS

OFF

EXTMD

PUMPF

▲/▼

Key-lock

OFF

▲/▼

Circulating fluid temp time outside monitoring range

WRM

▲/▼

SET

KEY ⇒ LOCK

EASY ⇒ MODE

KEY ⇒ CLICK

Offset mode

OFF

▲/▼

OFSET ⇒ MODE

▲/▼

OFSET ⇒ TEMP

▲/▼

EXT ⇔ OFSET

TEMP ⇒ OUT ⇒ OVER

DI filter maintenance time*1

Dustproof filter maintenance time *Air-coold type only

5000

FILTT

5000

FUNUP

▲/▼

DI ⇔ TIME

050

WRN

HIPRS

HITEM

LOFL

LOTEM

450

DIHI

OFF

400

Detection time of circulating fluid discharg e pressure rise alarm

Changing of the flow rate decrease alarm

Setting of low flow rate alarm

Detection time of low flow rate alarm

Setting of electric conductivity increase alarm*1

Switching circulating fluid temperature drop alarm

Unused

Setting of circulating fluid discharge pressure rise alarm

▲/▼

FLT

Changing of circulating fluid discharge pressure rise alarm

▲/▼

ALST

▲/▼

HIPRS ⇒ ALARM

TEMP ⇒ OUTHI ⇒ OUTP

TEMP ⇒ OUTLO ⇒OUTP

AMB ⇒ TEMP ⇒ ALARM

AMB ⇒ HITEMP

Alarm setting menu

FLTR ⇔ TIME

Lower limit of circulati ng fluid temperature monitoring function

Circulating fluid temp monitoring start time

PUMPP

600

WRM

▲/▼

TEMP ⇒ OUT ⇒ TYPE

TEMP ⇒ OUT ⇒ START

HIPRS ⇒ TIME

LOFL ⇒ ALARM

LOFL ⇒ TIME

OFF

Switching circulating fluid temperature range rising alarm

▲/▼

TEMP ⇒ OUTLO ⇒ ALARM

Alarm buzzer sound

ALARM ⇒ BUZZ

▲/▼

Unused

Pressure of　lower pressure refrigerant circuit

Pressure of higher pressu reref rigerant circuit

000

▲/▼

REF ⇔ PRSHI

REF ⇔ PRSLO

212

▲/▼

REF ⇔ TEMP

Ambient temperature *Air-cooled type only

212

AMB ⇔ TEMP

▲/▼

Advance setting mode

WRN

Contact input signal 2 Delay timer

Contact input signal 2 OFF Detection timer

▲/▼

INP2 ⇒ DELAY

INP2 ⇒ OVER

COMM ⇒ ALARM

Changing of communication error monitoring alaarm

OFF

▲/▼

MANT ⇒ ALARM

Changing of maintenance alarm

Monitor menu

Standard setting menu

Offset temperature

Electric conductivit y set valve* 1

PUMPF

350

▲/▼

Unuse d

FLT

Changing of contact input signal 2 detection alarm

INP2 ⇒ ALARM

▲/▼

Switching circulating fluid temperature range rising alarm

OFF

PUMPF

▲/▼

TEMP ⇒ OUTHI ⇒ ALARM

INP2

Contact input signal 1Delay timer of reading

Contact input signal 1 OFF Detection timer

▲/▼

INP1 ⇒ DELAY

FLT

Changing of contact input signal 1 signal detection

INP1 ⇒ ALARM

▲/▼

EXT ⇔ CTRL

EXT ⇒ HITMP ⇒ LIMIT

Upper limit of circul ating fluid temperature monitoring function

400

▲/▼

TEMP ⇒ OUT ⇒ HITMP

Unused

WAKE

Unuse d

100

▲/▼

EXT ⇒ LOTMP ⇒ LIMIT

EXT ⇔ TIME

▲/▼

Temperature of the compressor inlet

Basic

setting

mode

READY ⇒ HBEND

TEMP READYband width Upper Limit

▲/▼

-10

▲/▼

READY ⇒ LBRND

TEMP READY Band width Lower Limit

180

▲/▼

READY ⇒ TIME

TTEMP READY stabilization time

600

▲/▼

READY ⇒ START

TTEMP READY alarm monitoring start time

▲/▼

TEMP ⇒ OVER

TTEMP READY Time when it goes away

▲/▼

TEMP READY alarm

OFF

PUMPF

TEMP ⇒ READY ⇒ ALARM

TEMP READY alarm output added

PUMPF

TEMP ⇒ READY ⇒ OUTP

▲/▼

100

Unused

▲/▼

AMB ⇒ LOTEMP

ARN

Switch leakage alarm

WATER ⇒ LEAK ⇒ ALARM

▲/▼

INP1 ⇒ OVER

▲/▼

COMM ⇒ TIME

The monitoring time of communication error

PUMP ⇒ TIME

Time when only pump rus when alarm is generated

▲/▼

400

PUMP ⇒ TEMP

Temp when only pump rus when alarm is generated

▲/▼

CTRL

dDI

▲/▼

Electric conductivity control methhod* 1

DI ⇒ CTRL

Circulating fluid temperature range increases, the monitoring method of lowering alarm

RNST

WRM

TEMP ⇒ OUT ⇒ ALARM

▲/▼

Page 11

HRX-OM-W004

Chapter 1 Read before using

HRR Series 1.3 Key operations

1-7

Fig 1.3-4 Key operation (4/4)

ASC

485

OFF

PROT

TYPE

TERM

192

SPEED

T01

DIN1

ALT

INP1

Serialprotocol

Communication specifications

Slave address

Communication　speed

RS-485terminal

Digital input signal 1 Selective Maintenance

▲/▼

OFF

INP2

ALT

INP2

OUT1

Digital input signal 2 operation

Digital output signal 1 operation

Digital input signal 2 function selection

Digital input signal 2 type

▲/▼

INP1

Contact inputsignal 1 operation

▲/▼

DIN2 ⇔ SEL

DOUT1 ⇒ TYPE

SLV ⇔ ADDR

MODE

Setting date reset

RST

ALL ⇔ RESET

Communication setting menu Reset menu

R T

OUT2

AL01

OUT2

OUT3

AL01

OUT3

Digital output 2 selected alarm

Digital output signal 3 selected alarm

Digital output signal 2 function selection

Digital output signal ２ operation

Digital output signal 3 function selection

Digital output signal 3 operation

▲/▼

DOUT2 ⇔ SEL

DOUT2 ⇔ TYPE

DOUT3 ⇔ SEL

DOUT3 ⇔ TYPE

▲/▼

Operation time

Pump operation time

Accumulated operation time of the dust-proof filter

Accumulated operation time of the DI filter ∗1

DIT

RUNT

PUMPT

COMPT

FLTRT

▲/▼

Compressor operation time

FANT

▲/▼

Fan operation time *Air-cooled type only

INFO

Information moniter menu

PGVER

Program version

▲/▼

0000

PGNO

Program number

▲/▼

Digital input signal 1 type

OUT1

RUN

Digital output signal 1 function selection

▲/▼

DOUT1 ⇒ SEL

OUT1

AL01

Digital output signal 1 selected alarm

DIN1 ⇒ SW ⇒ TYPE

DIN1 ⇒ CON ⇒ TYPE

DIN2 ⇒ SW ⇒ TYPE

DIN2 ⇒ CON ⇒ TYPE

DOUT1 ⇒ ALARM ⇒ CODE

▲/▼

DOUT2 ⇒ ALARM ⇒ CODE

OUT1

T01

Digital output 2 selected maintenance

DOUT2 ⇒ MANT ⇒ CODE

OUT1

T01

Digital output 3 selected maintenan ce

DOUT3 ⇒ MANT ⇒ CODE

DOUT3 ⇒ ALARM ⇒ CODE

▲/▼

DOUTI⇒ MANT ⇒ CODE

aAL h

nnn

Alarm history menu

AL17

Alarm (The latest)

▲/▼

OFF

DINI

▲/▼

Digital input signal 1 function selection

hRR

018-R

Model

▲/▼

20-

DMTU

Power Options

▲/▼

Example

AL10

Alarm

▲/▼

ALNN

Alarm (The oldest)

▲/▼

*1：With electric conductivity

control function only

Number of times of momentary power failure

POWF

▲/▼

PROT

Reset of dust-proof filter operation time

DI filter Reset usage time

▲/▼

FLTRT ⇒ RESET

DIT ⇒ RESET

▲/▼

PROT

Reset of pump operation time

▲/▼

PUMPT ⇒ RESET

PROT

Reset of compressor operation time

▲/▼

COMPT ⇒ RESET

PROT

Reset of fan operation time

▲/▼

FANT ⇒ RESET

OFF

Forced DI solenoid valve open

DI ⇒ VALVE

0000

instantaneous power failure occurrence count

DIT

▲/▼

STD

WS001

standard product/ special numbers

▲/▼

SELIAL.NO

*2 By pressing the ENT key on each alarm history screen, accumulated operating time and the number of historcases at the time of occurrence are displayed.

AL10

123

NO2

ENT

Accumulated operating time at alarm accurrence is displayed Alarm log number

COMM ⇒ STUS

Page 12

HRX-OM-W004

Chapter 1 Read before using

1.4 Parameters

HRR Series

1-8

1.4 Parameters

Table 1.4-1 ‘’Communication setting menu Parameters’’ explains the parameters of the 「communication setting menu」.

Table 1.4-1 Communication setting menu Parameters

∗1 Selectable from OFF/RUN/RMT/EXT.C/RDY/T.OUT/FLT/WRN/MENT/ALM/SW1/SW2/A.SEL/M.SEL

Initial value Select/setting range

TOP

screen

－

COMM

－

MEN U -

No.1

screen

Serial protocol

ASC AS C/ RTU PR OT

No.2

screen

Communic ation specification

485 485/232C TYPE

No.3

screen

RS-485 terminal unit

OFF OFF/ON TERM

No.4

screen

Slave address

～

32 SLV ⇒ ADDR

No.5

screen

Communic ation speed

（

bps

）

19.2 9.6/19.2 SPEED

No.6

screen

Contact input signal 1 function OFF OFF/RN.ST/RUN/SW D.IN1 ⇒ SEL

No.7

screen

Contact input signal 1　type ALT ALT/MT D.IN 1 ⇒ SW ⇒ TYPE

No.8

screen

Contact input signal 1　operation A A/B D.IN1 ⇒ CON ⇒ TYPE

No.9

screen

Contact input signal 2 function OFF OFF/STOP/SW D.IN2 ⇒ SEL

No.10

screen

Contact input signal 2　type ALT ALT/MT D.IN 2 ⇒ SW ⇒ TYPE

No.11

screen

Contact input signal 2　operation A A/B D.IN2 ⇒ CON ⇒ TYPE

No.12

screen

Contact output signal 1 function RUN

∗

1D.OUT1

⇒

SEL

No.13

screen

Contact output signal 1　operation A A/B D.OUT1 ⇒ TYPE

No.14

screen

Contact output signal 1

alarm

AL.01 AL.01～AL .32 D .OU T1 ⇒ ALARM ⇒ CODE

No.15

screen

Contact output signal 1　maintenance MT.01 MT.01～MT. 05 D.O UT1⇒ MANT ⇒ CODE

No.16

screen

Contact output signal 2 function RMT

∗

1D.OUT2

⇒

SEL

No.17

screen

Contact output signal 2　operation A A/B D.OUT2 ⇒ TYPE

No.18 scree

Contact output signal 2

alarm

AL.01 AL.01～AL .32 D .OU T2 ⇒ ALARM ⇒ CODE

No.19

screen

Contact output signal 2　maintenance MT.01 MT.01～MT.05 D.OUT2 ⇒ MANT ⇒ CODE

No.20

screen

Contact output signal 3 function ALM

∗

1D.OUT3

⇒

SEL

No.21

screen

Contact output signal 3　operation B A/B D.OUT3 ⇒ TYPE

No.22

screen

Contact output signal 3

alarm

AL.01 AL.01～AL .32 D .OU T3 ⇒ ALARM ⇒ CODE

No.23

screen

Contact output signal 3　maintenance MT.01 MT.01～MT.05 D.OUT3 ⇒ MANT ⇒ CODE

3.5.2

2.4.2

ScreenNo. Item

Display unit

Reference

page

Upper stage（White

）

Lower stage

（

Green

）

Page 13

HRX-OM-W004

Chapter 2 Contact input/output communication

HRR Series 2.1 Precautions for communication

2-1

Chapter 2 Contact input/output

communication

The device is equipped with a terminal which runs/stops the product. It is also equipped with a terminal which picks up operation signals, alarm signals and setting condition.

The device starts contact input/output communication according to the setting of the operation display panel. Contact input/output communication can be customized by changing the settings. Table 2-1 ‘’Customizable content’’ shows the contents which can be changed by the operation display panel.

Table 2-1 Customizable content

Signal Can be changed

Contact input signal (2pcs.) Signal configuration (Alternate/Momentary) Contact output signal (3pcs.) Type of signal, signal operation (N.O type / N.C type)

2.1 Precautions for communication

2.1.1 Precautions wiring communication

○Communication wiring

A communication cable that connects the product and customer system is not included with the product. Please prepare a cable, referring to 2.3 “Connection explanation“. In order to avoid malfunction, do not connect to any place other than those shown in 2.3 “Connection explanation“.

○Power supply

To use the power of the product, the total load current must be 500mA or less.

2.1.2 Precautions after wiring and before communication

○Check or set the communication mode by the operation display panel.

・Communication mode shall be DIO.

Other modes can perform reading, but only DIO mode can perform writing.

Page 14

HRX-OM-W004

Chapter 2 Contact input/output communication

2.2 Communication specification HRR Series

2-2

2.2 Communication specification

Table 2.2-1 DIO Communication specification

Item Specification

Connector type(for this product) Dsub 15P type female connector

Contact input

signal

Insulation system

Photo coupler

Rated input voltage

DC24V

Used input voltage

DC 21.6 to 26.4V

Rated input current

5mA TYP

Input signal

4.7kΩ

Contact output

signal

Rated load voltage

AC48V or less/DC30V or less

Maximum load current

AC/DC 500mA (Resistance load)

Minimum load current DC5V 10mA

DC24V output voltage

DC24V±10％ 500mA MAX

(It can not be used for inductive load.)

2.3 Connection explanation

This part explains the port of the contact input/output communication. A communication cable that connects the product and customer system is not

included with the product.

Table 2.3-1 Contact input/output pin number

Application Division Default setting

Setting

available 1 DC 24V output Output 2 DC 24V output Output 3 DC 24V output Output 4 Contact input signal 1 Input None

○

5 Common of contact output signal 1 Output 6 Common of contact output signal 2 Output 7 Common of contact output signal 3 Output 8 None - 9 24 COM output Output

10 24 COM output Output 11 Common of contact input signal Output 12 Contact input signal 2 Input None

○

13 Contact output signal 1 Output

Run status signal

(N.O. type)

○

14 Contact output signal 2 Output Remote signal (N.O. type)

○

15 Contact output signal 3 Output Alarm signal (N.C. type)

○

Page 15

HRX-OM-W004

Chapter 2 Contact input/output communication

HRR Series 2.4 Setting and checking

2-3

2.4 Setting and checking

2.4.1 Setting and checking

The table below explains the setting items of the contact input/output signal and the initial values.

Table 2.4-1 List of set communication items

*1：Selectable from OFF/RUN/RMT/EXT.C/RDY/T.OUT/FLT/WRN/MENT/ALM/SW1/SW2/

A.SEL/M.SEL

Initial va lu e

Select/setting range

TOP

screen

－

COMM

－

MEN U

Com m un icati on s etting m enu TOP screen

No.6

screen

Contact input signal 1 function

OFF OFF/RN .ST/R UN /SW

D.IN1

⇒

SEL

Setting function of contact input signal 1.

No.7

screen

Contact input signal 1 type

AL T AL T/MT

D.IN1

⇒

TYPE

Setting input type of contact input signal 1.

No.8

screen

Contact input signal 1 operation

AA/B

D.IN1

⇒

CON

⇒

TYPE

Setting input operation of contact input signal 1.

No.9

screen

Contact input signal 2 function

OFF OFF/STOP/SW

D.IN2

⇒

SEL

Setting function of contact input signal 2.

No.10

screen

Contact input signal 2 type

AL T AL T/MT

D.IN2

⇒

TYPE

Setting input type of contact input signal 2.

No.11

screen

Contact input signal 2 operation

AA/B

D.IN2

⇒

CON

⇒

TYPE

Setting input operation of contact input signal 2.

No.12

screen

Contact output signal 1 function

RUN

※

D.OUT1

⇒

SEL

Setting function of contact input signal 1.

No.13

screen

Contact output signal 1 operation

AA/B

D.OUT1

⇒

TYPE

Setting output operation of contact output signal 1.

No.14

screen

Contact output signal 1alarm

AL .0 1 AL .0 1～AL .3 2

D.OUT1

⇒

ALARM

⇒

CODE

Setting selected alarm of contact output signal 1.

No.15

screen

Contact output signal 1 maintenance

MT. 01 MT. 01～MT. 05

D.OUT1

⇒

MANT

⇒

CODE

Setting selected maintenance of contact output signal 1.

No.16

screen

Contact output signal 2 function

RMT

※

D.OUT2

⇒

SEL

Setting function of contact output signal 2.

No.17

screen

Contact output signal 2 operation

AA/B

D.OUT2

⇒

TYPE

Setting output operation of contact output signal 2.

No.18

screen

Contact output signal 2 alarm

AL .0 1 AL .0 1～AL .3 2

D.OUT2

⇒

ALARM

⇒

CODE

Setting selected alarm of contact output signal 2.

No.19

screen

Contact output signal 2 maintenance

MT. 01 MT. 01～MT. 05

D.OUT2

⇒

MANT

⇒

CODE

Setting selected maintenance of contact output signal 2.

No.20

screen

Contact output signal 3 function

AL M

※

D.OUT3

⇒

SEL

Setting function of contact output signal 3.

No.21

screen

Contact output signal 3 operation

BA/B

D.OUT3

⇒

TYPE

Setting output operation of contact output signal 3.

No.22

screen

Contact output signal 3 alarm

AL .0 1 AL .0 1～AL .3 2

D.OUT3

⇒

ALARM

⇒

CODE

Setting selected alarm of contact output signal 3.

No.23

screen

Contact output signal 3 maintenance

MT. 01 MT. 01～MT. 05

D.OUT3

⇒

MANT

⇒

CODE

Setting selected maintenance of contact output signal 3.

Display

No.

Item

Display unit

Contents

Upper stage（White

）

Lower

stage

（

Green

）

Page 16

HRX-OM-W004

Chapter 2 Contact input/output communication

2.4 Setting and checking HRR Series

2-4

2.4.2 Setting and checking

Communication setting menu TOP screen

1. Displays communication setting menu.

Contact input signal 1 function

2. Press the [▼] key. Displays screen for setting the function of the Contact input signal 1

Displays the function for the Contact input signal 1.

Set value Contents

Initial value

OFF

No input signal

○

RNST

Run / stop signal is input

―

RUN

Run signal is input

―

External switch signal input

―

℃

Main menu

TOP

screen

[MENU] key

Press and hold

(5 seconds)

Monitor Menu

TOP

screen

［MENU］

key

Standard setting menu

TOP

screen

［MENU］

key

Alarm setting menu

TOP

screen

Communication setting menu

TOP

screen

［MENU］

key

［MENU］

key

［MENU］

key

Contact input signal 1 function

DIN1 ⇒ SEL(Alternately displayed)

Page 17

HRX-OM-W004

Chapter 2 Contact input/output communication

HRR Series 2.4 Setting and checking

2-5

Contact input signal 1 type

3. Press the [▼] key. Displays screen for setting the type of Contact input signal 1.

Displays the type of Contact input signal 1.

Contact input signal 1

operation

4. Press the [▼] key. Displays screen for setting the operation of the Contact input signal 1.

Select the Contact input signal 1 operation.

Contact input signal 2 Select function

5. Press the [▼] key. Displays screen for setting the function of the Contact input signal 2.

Displays the function of the Contact input signal 2.

Set value Contents

Initial value

OFF

No input signal

○

STOP

Stop signal input

―

External switch signal input

―

Set value Contents

Initial value

ALT

Alternate signal

○

Momentary signal

―

Set value Contents

Initial value

N.O. type

○

N.C. type

―

Contact input signal 1 type

DIN1 ⇒ SW ⇒ TYPE(Alternately displayed)

Contact input signal 1 operation

DIN1 ⇒ CON ⇒ TYPE(Alternately displayed)

Contact input signal 2 function

DIN2 ⇒ SEL(Alternately displayed)

Page 18

HRX-OM-W004

Chapter 2 Contact input/output communication

2.4 Setting and checking HRR Series

2-6

Contact input signal 2 type

6. Press the [▼] key. Displays screen for setting the type of Contact input signal 2.

Displays the type of Contact input signal 2.

Set value Contents

Initial value

ALT

Alternate signal

○

Momentary signal

―

Contact input signal 2 operation

7. Press the [▼] key. Displays screen for setting the operation of the Contact input signal 2.

Select the Contact input signal 2 operation.

Set value Contents

Initial value

N.O. type

○

N.C. type

―

Contact output signal 1 function

8. Press the [▼] key. Displays setting screen for function of contact output signal 1 .

Displays the function of the Contact output signal 1.

Contact input signal 2 type

DIN2 ⇒ SW ⇒ TYPE(Alternately displayed)

Contact input signal 2 operation

DIN2 ⇒ CON ⇒ TYPE(Alternately displayed)

Contact output signal 1 function

DOUT1 ⇒ SEL(Alternately displayed)

Page 19

HRX-OM-W004

Chapter 2 Contact input/output communication

HRR Series 2.4 Setting and checking

2-7

Set value Explanation

Initial value

(Default setting)

No output signal

―

Operation status signal output

○

Remote status signal output

―

Unused

―

Ready completion (TEMP READY) signal output

―

TEMP OUT (temperature is out of the range) signal output

―

FLT (operation stop) alarm signal output

―

WRN (operation continue alarm) signal output

―

Notice for maintenance signal output

―

Alarm status signal output

―

Pass through signal of the contact input signal 1

―

Pass through signal of the contact input signal 2

―

Selected alarm status signal output

―

Selected notice for maintenance signal output

―

Contact output signal 1 operation

9. Press the [▼] key. Displays screen for setting the operation for the Contact output signal 1.

Select the Contact output signal 1 operation.

Set value Contents

Initial value

N.O. type

○

N.C. type

―

Contact output signal 1 selected alarm

10. Press the [▼] key. Displays screen for setting the selected alarm for the Contact output

signal 1. The alarm is valid when the “selected alarm status signal output” is active.

Select the alarm No. to be allocated to Contact output signal 1

●Setting range：AL.01～AL.32(Initial value：AL.01)

DOUT ⇒ TYPE(Alternately displayedd)

Contact output signal 1 operation

Contact output signal 1 selected alarm No.

DOUT1 ⇒ ALARM ⇒ CODE(Alternately displayed)

Page 20

HRX-OM-W004

Chapter 2 Contact input/output communication

2.4 Setting and checking HRR Series

2-8

Contact output signal 1 Select maintenance

11. Press the [▼] key. Displays screen for setting the selected maintenance for the Contact

output signal 1. The alarm is valid when the “selected maintenance status signal output” is active.

Select the maintenance alarm No. to be allocated to Contact output signal 1.

●

Setting range: MT.01 to MT.05 (Initial value: MT.01)

Contact output signal 2 Select function

12. Press the [▼] key. Displays screen for setting the function for the Contact output signal 2.

Displays the function for the Contact output signal 2.

Contact output signal 2 operation

13. Press the [▼] key. Displays screen for setting the operation for the Contact output signal 2

Set value Explanation

Initial value

(Default setting)

No output signal

―

Operation status signal output

―

Remote status signal output

○

Unused

―

Ready completion (TEMP READY) signal output

―

TEMP OUT (temperature is out of the range) signal output

―

FLT (operation stop) alarm signal output

―

WRN (operation continue alarm) signal output

―

Notice for maintenance signal output

―

Alarm status signal output

―

Pass through signal of the contact input signal 1

―

Pass through signal of the contact input signal 2

―

Selected alarm status signal output

―

Selected notice for maintenance signal output

―

Contact output signal 1 Selected maintenance alarm No.

DOUT1 ⇒ MANT ⇒ CODE(Alternately displayed)

Contact output signal 2 Function

DOUT2 ⇒ SEL(Alternately displayed)

DOUT ⇒ SEL(Alternately displayed)

Contact output signal 2 operation

Page 21

HRX-OM-W004

Chapter 2 Contact input/output communication

HRR Series 2.4 Setting and checking

2-9

Select the contact output signal 2 operation.

Set value Contents

Initial value

N.O. type

○

N.C. type

―

Contact output signal 2 selected alarm

14. Press the [▼] key. Displays screen for setting the selected alarm for the Contact output signal 2.

The alarm is valid when the “selected alarm status signal output” is active.

Select the alarm No. to be assigned to contact output signal 2.

●Setting range：AL.01～AL.32(Initial value：AL.01)

Contact output signal 2 Select maintenance

15. Press the [▼] key. Displays screen for setting the selected maintenance of the Contact

output signal 2. The alarm is valid when the “selected maintenance status signal output” is selected.

Select the maintenance alarm No. to be allocated to Contact output signal 2.

●

Setting range: MT.01 to MT.05 (Initial value: MT.01)

Contact output signal 3 Select function

16. Press the [▼] key. Displays screen for setting the function of the Contact output signal 3

Select

contact output signal 3 function

Contact output signal 2 selected alarm No.

DOUT2 ⇒ ALARM ⇒ CODE(Alternately displayed)

Contact output signal 2 Selected maintenance alarm No.

DOUT2 ⇒ MANT ⇒ CODE(Alternately displayed)

Contact output signal 3 function

DOUT3 ⇒ SEL(Alternately displayed)

Page 22

HRX-OM-W004

Chapter 2 Contact input/output communication

2.4 Setting and checking HRR Series

2-10

Contact output signal 3 operation

17. Press the [▼] key. Displays screen for setting the operation of the Contact output

signal 3.

Contact output signal 3 operation

Set value Contents

Initial value

N.O. type

―

N.C. type

○

Contact output signal 3 select alarm

18. Press the [▼] key. Displays screen for setting the selected alarm of Contact output

signal 3. The alarm is valid when the “selected alarm status signal output” is active.

Select the alarm No. to be allocated to Contact output signal 3

●Setting range: AL.01 to AL32 (Initial value: AL01)

Set value Explanation

Initial value

(Default setting)

No output signal

―

Operation status signal output

―

Remote status signal output

―

Unused

―

Ready completion (TEMP READY) signal output

―

TEMP OUT (temperature is out of the range) signal output

―

FLT (operation stop) alarm signal output

―

WRN (operation continue alarm) signal output

―

Notice for maintenance signal output

―

Alarm status signal output

○

Pass through signal of the contact input signal 1

―

Pass through signal of the contact input signal 2

―

Selected alarm status signal output

―

Selected notice for maintenance signal output

―

DOUT ⇒ TYPE(Alternately displayed)

Contact output signal 3 operation

Contact output signal 3 selected alarm No.

DOUT3 ⇒ ALARM ⇒ CODE(Alternately displayed)

Page 23

HRX-OM-W004

Chapter 2 Contact input/output communication

HRR Series 2.4 Setting and checking

2-11

Contact output signal 3 Select maintenance

19. Press the [▼] key. Displays screen for setting the selected maintenance of Contact

output signal 3. The alarm is valid when the “selected maintenance status signal output” is active.

Select the maintenance alarm No. to be allocated to Contact output signal 3.

●Setting range: MT.01 to MT.05 (Initial value: MT.01)

Contact output signal 3 Selected maintenance alarm No.

DOUT3 ⇒ MANT ⇒ CODE(Alternately displayed)

Page 24

HRX-OM-W004

Chapter 2 Contact input/output communication

2.5 Contact input signal HRR Series

2-12

2.5 Contact input signal

There are two contact input signals. As the default condition, contact input signal 1 , and contact input signal 2 are not used. The input signals can be customized depending on the customer’s application.

The combination of possible settings of contact input signals is limited. Refer to Table 2.5-2 for possible combinations.

Table 2.5-1 Contact input signal type

∗1 N.O.type：normally open (N.O.),N.C.type：normally closed (N.C.).

Table 2.5-2 Combinations of contact input signals

Contact input

1 function

selection

Contact input 2 function selection

OFF STOP SW

OFF ○ × ○

RN.ST ○ × ○

RUN × ○ ×

○ × ○

○：Settable ×：Not settable

Desc ription

Display Description Display

Description

∗

Display

Delay

timer of

reading

OFF

detection

N.O.ty p e A - - N.C.type B - - N.O.ty p e A - - N.C.type B - - N.O.ty p e A - - N.C.type B - - N.O.ty p e A - - N.C.type B - - N.O.ty p e A Used Us ed N.C.type B Used Used N.O.ty p e A Used Us ed N.C.type B Used Used N.O.ty p e A - -

○

N.C.type B - - N.O.ty p e A - - N.C.type B - - N.O.ty p e A - - N.C.type B - - N.O.ty p e A - - N.C.type B - - N.O.ty p e A Used Us ed N.C.type B Used Used N.O.ty p e A Used Us ed N.C.type B Used Used N.O.ty p e A - -

○

N.C.type B - - N.O.ty p e A - - N.C.type B - - -

ALT

Mome n tary MT

Without

intput

signal

OFF

Alternate ALT

Mome n tary MT

Contact input signal 2

Stop

signal

STOP

Alternate ALT

Mome n tary MT

External

switch signal

input

Alternate

Without

intput

signal

OFF

Alternate ALT

Mome n tary MT

ALT

Mome n tary MT

External

switch signal

input

Alternate ALT

Mome n tary MT

Contact input signal 1

Run/stop

signal

RN.ST

Alternate ALT

Mome n tary MT

Run signal RUN

Alternate

Class of signal Signal configuration Signal operation Timer

Default

setting

Page 25

HRX-OM-W004

Chapter 2 Contact input/output communication

HRR Series 2.5 Contact input signal

2-13

2.5.1 Run/stop・Run・Stop・External switch signal

1) Run/stop signal (Signal type: Alternate)

The product keeps operating while the input signal from the customer is ON.

2) Run/stop signal (Signal type: Momentary)

The state changes when the input signal from the customer goes ON. This signal operates while

the product is stopped, and stops while the product is being operated.

3) Run signal (Signal type: Alternate) /Stop signal (Signal type：Alternate)

Digital input signal 1 is for Run signal（Signal type：Alternate）, digital input signal 2 is for stop signal(Signal type: Alternate). Stop signal becomes valid when both signals are turned ON.

① The product starts operation when the contact input signal 1 is turned ON. ②

The product stops operation when the contact input signal 2 is turned ON.

③

The product starts operation because the contact input signal 1 is turned ON although the contact input signal 2 is OFF.

OFF

Run

Stop

Product condition

Run/stop signal (Momentary)

OFF

Run

Stop

Product condition

Run signal

OFF

Stop signal

②

①

③

OFF

Run

Stop

Product condition

Run/stop signal （Alternate）

Page 26

HRX-OM-W004

Chapter 2 Contact input/output communication

2.5 Contact input signal HRR Series

2-14

Digital input signal 1 is for Run/Stop signal (Signal type: Alternate), digital input signal 2 is for external switch signal (Signal type: Alternate).Refer to Chapter 2.5.2 for details of the external switch.

① The product starts operation when the Run/Stop signal from the user is turned

on.

②

It reads the signal of the external switch signal (N.O type) after the time which has been set for the delay timer of reading. The factory default setting of the delay timer of reading is 0sec. Refer to 2.4.2 for setting.

③

When the external switch signal (N.O. type) has been turned off for the time set

for OFF detection timer, it is recognized as OFF. The factory default setting of the OFF detection timer is 0sec. Refer to 2.4.2 for setting.

④

AL26 contact input 2 signal detection alarm is generated. The operation of the product stops. "Operation stop" is the default setting for AL26. The product can be set to continue operation or not to detect the alarm. Refer to the “Installation / Operation” manual for details.

∗The product stops operation when the Run/Stop signal is turned off during

operation. Afterwards, the alarm is not generated even if the external switch signal is turned off.

2.5.2 Signal of the external switch

This product can be monitored by reading the signal of the external switch prepared by the customer. This product generates an alarm and stops operating when a problem is detected from the external switch. Monitoring mode can be selected from “continuous monitoring” or “monitoring only during operation”. Refer to Table 2.5-3. Select the external switch 1 or 2 or both depending on the customer’s system. Refer to 2.4.2 for setting method.

The number of monitored external switches depends on the contact input signal function. Refer to Table 2.5-3 You can set the product to continue operation or not to detect the alarm. Refer to the “Installation / Operation” manual for details

Table 2.5-3 Monitoring method for contact input

Contact input delay timer for

reading

Monitoring method

0 sec Continuous monitoring

1 to 300 sec Monitor only during operation

OFF

Run

Stop

Product condition

OFF

External switch signal

OFF Detection time

③

④①

②

Run/Stop signal

Delay timer of reading

Page 27

HRX-OM-W004

Chapter 2 Contact input/output communication

HRR Series 2.5 Contact input signal

2-15

Run status of this product

Run

Stop

External switch

OPEN

Operation start

Signal reading

start

Delay timer of reading OFF detection timer

Alarm

generation

Operation stops due to the alarm.

■Delay timer of reading

If the signal of the external switch prepared by the customer is not closed instantly when the product is operated, set the delay timer for reading. By setting this timer, the external switch monitoring starts after the time set by the delay time of reading since the operation start.

“0" is the default setting. Set a time which is suitable for your environment.

Example} When using a flow switch

When operation is started, it takes time for the fluid to reach the piping and the flow switch to detect the flow. Set the time for the flow switch to start.

■

OFF detection timer

If you do not want the alarm to be generated instantly when the external switch prepared by the customer is in open status, but instead want the alarm to be generated after the switch has been open for a specific time (continuous open status), set the OFF detection timer.

This timer enables the alarm to be generated when the time set for OFF detection time passes after the switch is in OPEN status.The default setting is 0 sec. Set a time which is suitable for your application.

■

Contact input

N.O type normally open (N.O.) or N.C. type normally closed (N.C.) can be selected for the external switch. Set the signal which is suitable for the external switch prepared by the customer.

Page 28

HRX-OM-W004

Chapter 2 Contact input/output communication

2.6 Contact output signal HRR Series

2-16

2.6 Contact output signal

There are three contact output signals. As the default setting, contact output signal 1 is for operating condition (N.O type), contact output signal 2 is for remote signal (N.O type), and contact output signal 3 is for alarm signal (N.C type). Refer to Table 2-6-1.Depending on the product condition, contact output signal is turned on (closed) or turned off (open).

The signals can be customized depending on the customer’s application. The Table 2.6-2 shows operation of contact output signal.

【Tips】

All contact output signals are turned off (open) when the power is not supplied.

Table2.6-1 Contact output signal (Default setting)

Class of signal Signal configuration

Description Display

Description ∗1

Display

Contact output signal 1 Run status signal RUN

N.O type

Contact output signal 2 Remote signal RMT

N.O type

Contact output signal 3 Alarm signal ALM

N.C type

∗1 N.O.type：normally open (N.O.), N.C.type：normally open (N.O.)

Non ｇeneration（not set）

Generation（set）

OFF

Digital output signal （N.O type）

Product condition 　　　（Set condition）

OFF

Digital output signal （N.C type）

Page 29

HRX-OM-W004

Chapter 2 Contact input/output communication

HRR Series 2.6 Contact output signal

2-17

Table 2.6-2 Operation of contact output signal

Class of signal

Operation of contact output signal

Display Function Operation

OFF Without output

N.O type Normally, output signal is OFF (open) N.C type Normally, output signal is ON (close)

RUN Run status signal

N.O type When the product operates, signal turns on. N.C type When the product operates, signal turns off.

RMT Remote status signal

N.O type

When the product becomes SERIAL REMOTE, signal turns on.

N.C type When the product becomes LOCAL, signal turns off.

EXT.C

External temperature

control signal

N.O type

Signal is turned on by activating the external temperature control function.

N.C type

Signal is turned off by activating the external temperature control function.

RDY

Signal for completion of preparation (TEMP

READY)

N.O type

When the product becomes completion of preparation (TEMP READY), signal turns on.

N.C type

When the product becomes completion of preparation (TEMP READY), signal turns off.

T. OU T

TEMP OUT

(temperature is out of

the range) signal

N.O type

Signal is turned on when the temperature is out of the range (TEMP OUT).

N.C type

Signal is turned off when the temperature is out of the range (TEMP OUT).

FLT

Signal for operation

stop alarm

N.O type When operation stop alarm occurs, signal turns on. N.C type When operation stop alarm occurs, signal turns off.

WRN

Signal for continuing

operation alarm

N.O type When continuing operation alarm occurs,

signal turns on.

N.C type When continuing operation alarm occurs,

signal turns off.

MENT

Maintenance status

signal

N.O type The signal is turned on when the maintenance status

signal is generated.

N.C type The signal is turned off when the maintenance status

signal is generated.

ALM Alarm status signal

N.O type When alarm occurs, signal turns on. N.C type When alarm occurs, signal turns off.

Pass through signal

of contact input signal

N.O type

Outputs the signal which is input to the contact input signal. Input signal is ON Æ Output signal is ON

N.C type

Outputs the reverse of the signal which is input to the contact input signal. Input signal is OFF Æ Output signal is ON

ASEL Alarm status signal

N.O type The signal is turned ON when the

selected alarm goes off.

N.C type

The signal is turned OFF when the selected alarm goes off.

M.SEL

Maintenance status

signal

N.O type

The signal is turned on when the selected maintenance status signal is generated.

N.C type

The signal is turned off when the selected maintenance status signal is generated.

Page 30

HRX-OM-W004

Chapter 2 Contact input/output communication

2.6 Contact output signal HRR Series

2-18

Page 31

HRX-OM-W004

Chapter 3 Serial communication

HRR Series 3.1 Precautions wiring communication

3-1

Chapter 3 Serial communication

Serial communication (RS-485/RS232C) enables the remote control of run/start of the product, temperature setting and details of product condition, and alarm condition can be obtained.

The operating state of the product (run/stop) and the temperature setting can be monitored by sending a request message made by the program of the host computer (e.g. PC).

The communication protocol is MODBUS protocol.

3.1 Precautions wiring communication

○Communication wiring

A communication cable that connects the product and customer system is not included with the product. Please prepare a cable, referring to 3.2 ‘’Connected explanation’’ In order to avoid malfunction, do not connect to any place other than those shown in 3.2 ‘’Connected explanation’’.

3.2 Connected explanation

Fig 3.2-1 shows the wiring when RS-485 is selected as the communication standard. Fig 3.2-2 shows the wiring when RS-232C is selected. A communication cable that connects the product and customer system is not included with the product. Prepare a cable, referring to Fig 3.2-1 or Fig 3.2-2.

SD+

SD-

SD+

SD- SG

Terminal

resistance

Master This product

(first slave)

SD+

SD-

This product

（second slave）

SD+

SD-

This product

（31

slaves）

Terminal

resistance120Ω

Fig 3.2-1 RS-485 connector connection

【Tips】

・1 master : 1 product, or 1 master: N products.

In the latter case, up to 31 products can be connected.

・Both ends of the communication connection (the end nodes) need to be

connected to the higher level computer.

・The terminal resistance of this product can be set by the operation display

panel. Refer to ‘’3.6.2 Setting and checking’’.

Page 32

HRX-OM-W004

Chapter 3 Serial communication

3.3 Communication specification HRR Series

3-2

Fig 3.2-2 RS-232C connector connection

3.3 Communication specification

Table 3.3-1 Serial communication specification

Item Specification

Connector type (for the product) D-sub9P type Female connector Standard

Select from EIA RS-485／RS-232C

Circuit type Half duplex Half duplex Transmission type Start-stop Protocol

MODBUS terminal

∗1

Terminal resistance

Select from with terminal resistance（120Ω）／Without terminal resistance

：Default setting

∗1：Refer to Modicon Co. protocol specifications "PI-MBUS-300 Rev.J".

Table 3.2-2 Communication specification of MODBUS communication function

Item Specification

Standard

Select from EIA RS-485／RS-232C

Communication speed

Select from 9600bps／19200bps

Data・bit length

7bit(ASCII) / 8bit(RTU)

Stop・bit length

1bit

Data transfer direction

LSB

Parity Even parity Letter code

ASCII character string (ASCII) / Binary data(RTU)

Node type

Slave (Controller)

Slave address set range Select from 1 to 32 address Error check

LRC method

(ASCII) / CRC method (RTU)

：Default setting

Master This product

Page 33

HRX-OM-W004

Chapter 3 Serial communication

HRR Series 3.4 MODBUS communication function

3-3

3.4 MODBUS communication function

MODBUS protocol is a communication protocol developed by Modicon. It is used to communicate with a PC or PLC.

This communication has the following features.

・Controls run/stop.

・Sets and reads the circulating fluid set temperature.

・Reads the circulating fluid discharge temperature.

・Reads the condition of the product.

・Reads the alarm generating condition of the product.

Refer to “3.13 Register Map” for the register of the product.

3.5 Precautions for communication

3.5.1 Precautions after wiring and before communication

○Check or set the each communication setting by the operation display

panel.

・The communication specification shall be the customer’s communication

standard.

・The communication mode shall be the SERIAL mode. (When serial mode is

activated, this mode is selected. Refer to Chapter 3.13.11)

Other modes can perform reading, but only SERIAL mode can perform writing.

○Check or set the communication parameters using the operation display

panel.

Check or set the communication speed so that the product synchronizes with the host computer (master) prepared by the customer.

○Check the slave address by the operation display panel.

No response is returned when a request message is sent from a slave address other than those set in the product.

3.5.2 Precautions for communicating

○Allow a suitable interval between requests.

To send request messages in series, wait for 100 msec. or longer after receiving a response message from the product before sending the next message.

○Retry (resend request message)

The response may not be returned due to noise. If no message is returned 1sec. after sending a request message, resend the request message.

○If necessary send a read request message to check if it was written correctly.

Page 34

HRX-OM-W004

Chapter 3 Serial communication

3.6 Setting and checking HRR Series

3-4

Message to notify the completion of the process is returned when the action for the written request message is completed.

Send a read request message to confirm if the setting was written as requested.

○Setting limit of circulating fluid temperature

When the circulating fluid set temperature is written by communication, the data is stored in FRAM. When the product restarts, it restarts with the value which was set before the restart. The number of times it is possible to overwrite FRAM is limited. Data is only stored in FRAM when it receives a circulating fluid set temperature which is different from the previous temperatures. Please check how many times it is possible to overwrite FRAM, and avoid unnecessary changes of the circulating fluid set temperature during communication

3.6 Setting and checking

3.6.1 Setting and checking items

The table below explains the setting items of the MODBUS communication function and the initial values.

Table

3.6-1 Communication setting items

Ini tial va lu e

Select/setting range

TOP

screen

－

COMM

－

MENU Comm unication setting menu　TOP screen

No.1

screen

Serial protocol ASC ASC/RTU PROT Select serial protocol.

No.2

screen

Communication specification

485 485/232C TYPE Select RS - 485 / RS - 232C.

No.3

screen

RS-485 terminal unit OFF OFF/ON TERM

Select whether RS - 485 terminating resis tance is present or not.

No.4

screen

Slave address 1 1～32

SLV

⇒

ADDR

Set the slave address.

No.5

screen

Communication speed（bps

）

19.2 9.6/19.2 SPEED Set the com munication s peed.

Display

No.

Item

Display unit

Contents

Upper stage（Whi te

）

Lower stage

（

Green

）

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HRX-OM-W004

Chapter 3 Serial communication

HRR Series 3.6 Setting and checking

3-5

3.6.2 Setting and checking

Communication setting menu TOP screen

1. Displays communication setting menu.

serial protocol

2. Press the [▼] key. Displays screen for setting the serial protocol.

Select communication protocol.

Set value Contents

Initial value

ASC

ASCII mode

○

RTU

RTU mode

―

℃

Main menu

TOP

screen

[MENU] key

Press and hold

(5 seconds)

［MENU］key

［MENU］

key

Alarm setting menu

TOP

screen

Communication setting menu

TOP screen

［MENU］key

［MENU］

key

［MENU］

key

Serial protocol.

Monitor menu

TOP screen

Standard setting

menu TOP screen

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HRX-OM-W004

Chapter 3 Serial communication

3.6 Setting and checking HRR Series

3-6

Communication specification

3. Press the [▼] key. Displays screen for setting the communication specifications.

Select the communication specification.

Set value Contents

Initial value

485

RS-485

○

232C

RS-232C

―

RS-485 terminal unit

4. Press the [▼] key. Displays screen for setting RS-485 terminal unit.

Select RS-485 terminal unit.

Set value Contents

Initial value

OFF

No terminal

○

With terminal

―

Slave addresses

5. Press the [▼] key. Displays screen for setting the slave address.

Sets slave address.

●Setting range: 1 to 32 (Initial value: 1)

Communication specification

RS-485 terminal unit

Slave addresses.

SLV ⇒ ADDR(Alternately displayed)

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HRX-OM-W004

Chapter 3 Serial communication

HRR Series 3.7 Communication sequence

3-7

Communication speed

6. Press the [▼] key. Displays screen for setting the communication speed.

Selects the communication speed.

Set value Contents

Initial value

9.6

9600 bps

―

19.2

19200 bps

○

3.7 Communication sequence

Starts with a request message from the customer’s system (host), and finishes with a response message from the product (slave). This product operates as a slave. It does not send any requests.

●

Positive response Based on the request message, reads register/writes register and returns a positive response.

●

Negative response

Returns a negative message when the

received request message is not normal. Refer

to ‘’3.12 Negative response’’.

●

No response No response is returned when there is an error in “slave address specification” or”

Checksum(LRC

/ CRC)

”.

Communication speed

Customer's system

(host)

This product

(slave)

No response

10～200ms

（

）

（

）

Page 38

HRX-OM-W004

Chapter 3 Serial communication

3.8 Message configuration HRR Series

3-8

3.8 Message configuration

3.8.1 Message frame

The message configuration is shown below. The communication of this product uses 2 transmission modes, ASCII or RTU.

1） ASCII mode frame

For ASCII mode, the message starts with ASCII characters “:”(0X3A) and ends with “CR/LF”(0X0D,0X0A). A response message will not be returned unless the request includes [:] and [CR][LF]. This product clears all previously received code when [:] is received.

Table 3.8-1 ASCII mode message frame

a)Start

b)Slave

Address

c)Function d)Data

e) Checksum

(LRC)

f)End

[:] XX XX XX XX XX

～

XX XX XX [CR] [LF]

a) Start

The start of the message. [:](3Ah) (ASCII)

b) Slave Address

This is a number to identify this product. “1" is the default setting. This can be changed by the operation display panel.

c) Function（

Refer to “3.9 Function codes”）

Command is assigned.

d) Data

Depending on the function, the address and the number of the register, the value of reading/writing are assigned.

e) LRC

LRC method Refer to ‘’3.10.1 LRC(ASCII)’’.

f) END

The end of the message. [CR](0Dh)＋[LF](0Ah)

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Chapter 3 Serial communication

HRR Series 3.9 Function codes

3-9

RTU mode frame

RTU mode starts from and ends with at least 3.5 characters of silent interval. Silent interval

is indicated by T1-T2-T3-T4.

Table 3.8.2 RTU mode message frame

a)Start

b)Slave

Address

c)Function d)Data

e) Checksum

(CRC)

f)End

T1-T2-T3-T4 XX XX XX ～XX XX XX T1-T2-T3-T4

a) Start

In Modbus RTU mode, message frames are separated by a silent interval (non-communication time). At least 3.5 characters of silent interval are necessary at the beginning and the end of the communication frame.

b) Slave Address

This is a number to identify this product. “1" is the default setting. This can be changed by the operation display panel.

c) Function

Command is assigned.

d) Data

Depending on the function, the address and the number of the register, the value of reading/writing are assigned.

e) CRC

CRC

method.

Refer to”3.10.2 CRC(RTU)”.

f )End

3.5 characters of silent interval indicates the end of a message.

3.9 Function codes

Table 3.9-1 shows function codes to read or write register. Refer to "3.11 Explanation of function codes ".

Table 3.9-1 Function codes

NO Code Name Function

1 04(04h) read holding registers

Reading multiple registers

2 06(06h) preset single register Writing registers

∗

3 16(10h) preset multiple registers

Writing multiple registers

4 23(17h) read/write 4x registers

Reading/writing multiple registers

∗1：Broadcast is not supported.

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HRX-OM-W004

Chapter 3 Serial communication

3.10 Checksum calculation method HRR Series

3-10

3.10 Checksum calculation method

3.10.1 LRC(ASCII)

LRC checks the content of the message other than [:] of START and [CR][LF] of END. The sending side calculates and sets. The receiving side calculates based on the received message, and compares the calculation result with the received LRC. The received message is deleted if the calculation result and received LRC do not match.

Add up the byte number of the message consisting of 8 consecutive bits. The result except the carry (overflow) is converted to 2’s complement.

 Calculation example

Example) Change circulating fluid set temperature 25.4 ° C

Sending data 0106000B00FE

○Slave Address：No.1 ○Function：No.06 ○Writing address：000Bh ○Writing data：00Feh

Classification

Contents

calculation result

LRC message for calculation

0106000B00FE

Calculation

Added for each 8Byte

01h＋06h＋00h＋0Bh+00h+FEh=110

10h

complement of 2

10h→EFh→F0h

F0h（LRC）

Sending message

[:]0106000B00FEF0[CR][LF] -

3.10.2 CRC(RTU)

CRC checks the content of the message. The sending side calculates the data every 2 bytes (16 bits). The receiving side calculates CRC based on the received message, and compares the calculation result with the received CRC. The received message is deleted if the calculated CRC is different from the received CRC.

 Calculation procedure

① Preload “FFFFh” (set 0xFFFF as initial value ). ② Exclusive OR the first byte of the transmitted message with the value in (1). ③ Shift the result of (2) by one bit toward the least significant bit, and fill a zero

into the most significant bit position.

④ If the least significant bit was a 1, exclusive OR the result of (3) with “A001h”.

(Example 1). If the least significant bit was a 0, no exclusive OR takes place.

⑤ Repeat (3) to (5) until eight shifts have been performed.S ⑥ After eight shifts, exclusive OR the result of (5) with the next 1-byte (2nd.

byte).

⑦ The processes (3) to (6) are repeated for all the remaining bytes of the

message.

⑧ The 2-byte data of the result of (7) is the CRC value.

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Chapter 3 Serial communication

HRR Series 3.10 Checksum calculation method

3-11

(Example 1) The least significant bit was a 1.

(Example 2) The least significant bit was a 0.



Calculation example

Example) Change circulating fluid set temperature 25.4 ° C

Sending data 0106000B00FE

○Slave Address : No.1 ○Function：No.06 ○Writing address：000Bh ○Writing data：00FEh

Aata No. 1st

value

2nd value

3rd value

4th value

5th value

6th value

Data contents

0001h 0006h 0000h 000Bh 0000h 00FEh

0 00 00000

00 0 0 000 0

…

Add 0 to the top

If it is 0, do not ExOR

…

1 bit shift in the lowest direction

0000 0001

0 000 00001

…

1 bit shift in the lowest direction

Add 0 to the top

Execute ExOR if 1

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Chapter 3 Serial communication

3.11 Explanation of function codes HRR Series

3-12

Classification

Contents Result

CRC

message for calculation

0106000B00FE -

Calculation

Perform (1) to (4) for the 1st value (0001h) and then, perform (5).

807Eh

Perform (6) for 2nd value (0006h) and then, perform (5).

2280h

Perform (6) for 3rd. value (0000h) and then, perform (5).

A023h

Perform (6) for 4th value (000Bh) and then, perform (5).

1EA0h

Perform (6) for 5th value (0000h) and then, perform (5).

781Eh

Perform (6) for 6th value (00FEh) and then, perform (5).

8879h (CRC)

Addition to the sent message

0106000B00FE7988∗１ -

∗１ When incorporating it into the message, set it in order of low byte and high byte.

3.11 Explanation of function codes

3.11.1 Function code：04 Reading multiple registers

■

Communication example

○Slave Address : No.1

○

Read seven consecutive data from register 0000h.

(

Read circulating fluid discharge temperature、circulating fluid flow rate、circulating fluid

discharge pressure

、 electric conductivity of the circulating fluid 、 status address

information

、alarm information)

Request message 010400000007

Field name

Example

(HEX)

ASCII mode

character data

RTU mode

binary data

Header - “:”

None

Slave Address 0x01

“0”,“１” 0x01

Function 0x04 “0”,“4” 0x04

Head address of specified register 0x0000 “0”,“0”,“0”,“0” 0x00,0x00

Quantity of register to read 0x0007 “0”,“0”,“0”,“7” 0x00,0x07

Checksum ASCII:LRC RTU:CRC -

“F”,”4” 0xB1,0xC8

Trailer

CR/LF

None

To ta l

quantity of byte

17 8

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HRX-OM-W004

Chapter 3 Serial communication

HRR Series 3.11 Explanation of function codes

3-13

Response message 01040E00D40000000D0000020100000000

Field name

Example

(HEX)

ASCII mode

character data

RTU mode

binary data

Header - “:”

None

Slave Address

0x01

“0”,“1” 0x01

Function

0x04

“0”,“4” 0x04

Quantity of bytes to read 0x0E

“0”,“E” 0x0E

Information of 0000h(Circulating fluid discharge temperature

)

0x00D4

“0”,“0”,“D”,“4” 0x00,0xD4

Information of 0001h(Circulating fluid flow rate

)

0x0000

“0”,“0”,“0”,“0” 0x00,0x00

Information of 0002h(Circulating fluid discharge pressure

)

0x000D

“0”,“0”,“0”,“D” 0x00,0x0D

Information of 0003h(Electric conductivity of the circulating fluid

)

0x0000

“0”,“0”,“0”, “0” 0x00,0x00

Information of 0004h (Status flag 1) 0x0201

“0”,“2”,“0”,“1” 0x02,0x01

Information of 0005h (Alarm flag 1) 0x0000

“0”,“0”,“0”,“0” 0x00,0x00

Information of 0006h (Alarm flag 2) 0x0000

“0”,“0”,“0”,“0” 0x00,0x00

Checksum ASCII:LRC RTU:CRC - “0”,”9” 0xF8,0x80

Trailer

- CR/LF

None

To ta l

quantity of byte

39 19

3.11.2 Function code：06 Writing registers

Write data to assigned address.

■Communication example

○Slave Address : No.1

○

Write data to register 000Ch

(Commands to run)

Request message 0106000C0001

Field name

Example

(HEX)

ASCII mode

character data

RTU mode

binary data

Header - “:”

None

Slave Address

0x01

“0”,“１”

0x01

Function 0x06 “0”,“6” 0x06

Head address of specified register 0x000C “0”,“0”,“0”,“C” 0x00,0x0C

Information written to 000Ch

(Stop flag)

0x0001 “0”,“0”,“0”,“1” 0x00,0x01

Checksum ASCII:LRC RTU:CRC

- “E”,”C” 0x88,0x09

Trailer

- CR/LF

None

To ta l

quantity of byte

17 8

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HRX-OM-W004

Chapter 3 Serial communication

3.11 Explanation of function codes HRR Series

3-14

Response message 0106000C0001

Field name

Example

(HEX)

ASCII mode

character data

RTU mode

binary data

Header - “:”

None

Slave Address

0x01

“0”,“1” 0x01

Function

0x06

“0”,“6” 0x06

Address of register to write 0x000C

“0”, “0”,“0”,“C” 0x00,0x0C

Information of register to write 0x0001

“0”,“0”,“0”,“1” 0x00,0x01

Checksum ASCII:LRC RTU:CRC - “E”,“C” 0x88,0x09

Trailer

- CR/LF

None

To ta l

quantity of byte

17 8

3.11.3 Function code：16 Writing multiple registers

■ Communication example

○Slave Address No.1

○

Write two consecutive data from register 000Bh.

(

Commands to change of circulating fluid set temperature <34.9 oC > and run.)

Request message 0110000B000204015D0001

Field name

Example

(HEX)

ASCII mode

character data

RTU mode

binary data

Header - “:”

None

Slave Address 0x01

“0”,“１”

0x01

Function 0x10 “1”,“0”

0x10

Head address of specified register 0x000B “0”,“0”,“0”,“B”

0x00,0x0B

Quantity of register to write

0x0002 “0”,“0”,“0”,“2”

0x00,0x02

Quantity of byte to read

0x04 “0”,“4”

0x04

Information written to 000Bh

(Circulating fluid set temperature)

0x015D “0”,“1”,“5”,“D”

0x01,0x5D

Information written to 000Ch

(Stop flag)

0x0001 “0”,“0”,“0”,“1”

0x00,0x01

Checksum ASCII:LRC RTU:CRC - “7”,”F”

0xE3,0xF2

Trailer

- CR/LF

None

To ta l

quantity of byte

Page 45

HRX-OM-W004

Chapter 3 Serial communication

HRR Series 3.11 Explanation of function codes

3-15

Response message 0110000B0002

Field name

Example

(HEX)

ASCII mode

character data

RTU mode

binary data

Header - “:”

None

Slave Address

0x01

“0”,“1” 0x01

Function

0x10

“１”,“0” 0x10

Head address of register to write 0x000B

“0”,“0”,“0”,“B” 0x00,0x0B

Quantity of register to write 0x0002

“0”,“0”,“0”,“2” 0x00,0x02

Checksum ASCII:LRC

RTU:CRC

- “E”,”2” 0x30,0x0A

Trailer

- CR/LF

None

To ta l

quantity of byte

17 8

3.11.4 Function code：23 Reading/writing multiple registers

Register content of assigned points of assigned address is read. Write the register data from the specified address with specified points simultaneously.

■ Communication example

○Slave Address：No.1

○

Read three consecutive data from register 0004h, and write two consecutive data from register 000Bh.

(Command to change the circulating fluid set temperature to <15.5oC>, and read status and alarm information.)

Request message 011700040003000B000204009B0001

Field name

Example

(HEX)

ASCII mode

character data

RTU mode

binary data

Header - “:”

None

Slave Address

0x01

“0”,“１”

0x01

Function

0x17 “1”,“7” 0x17

Head address of specified register

0x0004 “0”,“0”,“0”“4” 0x00,0x04

Quantity of register to read

0x0003 “0”,“0”,“0”“3” 0x00,0x03

Head address of specified register

0x000B “0”,“0”,“0”,“B” 0x00,0x0B

Quantity of register to write

0x0002 “0”,“0”,“0”,“2” 0x00,0x02

Quantity of byte to write

0x04 “0”,“4” 0x04

Information written to 000Bh

(Circulating fluid set temperature)

0x009B “0”,“0”,“9”,“B” 0x00,0x9B

Information written to 000Ch (Stop

flag)

0x0001 “0”,“0”,“0”,“1” 0x00,0x01

Checksum ASCII:LRC

RTU:CRC

- “3”,”4” 0x96,0xD6

Trailer

- CR/LF

None

To ta l

quantity of byte

35 17

Page 46

HRX-OM-W004

Chapter 3 Serial communication

3.12 Negative response HRR Series

3-16

Response message 011706000000000000

Field name

Example

(HEX)

ASCII mode

character data

RTU mode

binary data

Header - “:”

None

Slave Address

0x01

“0”,“1” 0x01

Function

0x17

“1”,“7” 0x17

Quantity of bytes to read 0x06

“0”,“6” 0x06

Information of 0004h (Status flag 1)

0x0000

“0”,“0”,“0”,“0” 0x00,0x00

Information of 0005h (Alarm flag 1)

0x0000

“0”,“0”,“0”,“0” 0x00,0x00

Information of 0006h (Alarm flag 2)

0x0000

“0”,“0”,“0”,“0” 0x00,0x00

Checksum ASCII:LRC RTU:CRC - “E”,“2” 0x21,0x8A

Trailer - CR/LF

None

To ta l

quantity of byte

23 11

3.12 Negative response

A negative response is returned when the following request message is received.

1) When unspecified function code is used.

2) An address out of range is specified.

3) The data field is not normal.

 Negative response message (Slave to Master)

1) Negative acknowledgment message frame in ASCII mode.

Start

Slave

Address

1)Function

2)Error Code

LRC End

[:] XX XX XX XX XX XX XX XX [CR] [LF]

Negative acknowledgment message frame in RTU.

Start

Slave

Address

1)Function

2)Error Code

CRC End

T1-T2-T3-T4

∗１

XX XX XX XX XX XX T1-T2-T3-T4

∗１

∗１ Silent interval for 3.5 characters

1) Function

Assign the value consisting of the request function code (hexadecimal value) plus 80h.

Example 1) ASCII mode

Received function code: “04”(0000 0100)” ASCII code 30h, 34h Abnormal function code: ”84”（1000 0100）” ASCII code 38h, 34h

Example 2) RTU mode

Receive function code: "04" (0000 0100) Abnormal function code: "84" (1000 0100）

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Chapter 3 Serial communication

HRR Series 3.12 Negative response

3-17

2) Error Code

Assign error code below.

01 : Function code of a command is outside the standard

02 : The specified address of register is outside the range.

03 : Data field of a command is not normal.

■

Communication example

○Slave Address: No 1

○

Read seven consecutive data from register 0100h which is out of range.

Request message 010401000007

Field name

Example

(HEX)

ASCII mode

character data

RTU mode

binary data

Header - “:”

None

Slave Address

0x01 “0”,“1” 0x01

Function 0x04 “0”,“4” 0x04

Head address of register out of range

0x0100 “0”,“1”,“0”,“0” 0x01,0x00

Quantity of register to read

0x0007 “0”,“0”,“0”,“7” 0x00,0x07

Checksum ASCII:LRC RTU:CRC

- “F”,”3” 0xB0,0x34

Trailer

- CR/LF

None

To ta l

quantity of byte

16 8

Response message 018402

Field name

Example

(HEX)

ASCII mode

character data

RTU mode

binary data

Header

- “:”

None

Slave Address

0x01

“0”,“1” 0x01

Function (03h+80h) 0x84

“8”,“4” 0x84

Error Code

(Specified register address

is out of range.)

0x02

“0”,“2” 0x02

Checksum ASCII:LRC RTU:CRC

- “7”,“9” 0xC2,0xC1

Trailer

- CR/LF

None

To ta l

quantity of byte

11 5

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HRX-OM-W004

Chapter 3 Serial communication

3.13 Register Map HRR Series

3-18

3.13 Register Map

Address

Bit Format

R/W

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

0000h

Circulating fluid discharge temperature

-327.6 to 327.6℃ = F334h to 0CCCh(0.1℃/dig) (Refer to 3.13.1 Circulating fluid discharge temperature)

0001h

Circulating fluid flow rate

-3276.8 to 3276.7LPM = 8000h to 7FFFh(0.1LPM/dig) (Refer to 3.13.2

Circulating fluid flow rate)

0002h

Circulating fluid discharge pressure

-32.768 to 32.767MPa = 8000h to 7FFFh（0.0001MPa/dig） (Refer to 3.13.3 Circulating fluid discharge pressure)

0003h

Electric conductivity of the circulating fluid –3276.8 to 3276.7μS/cm = 8000 to 7FFFh (0.1μS/cm/dig) (Refer to 3.13.4 Electric conductivity of the circulating fluid)

0004h Status flag 1 (Refer to 3.13.5 Status flag 1)

0005h Alarm flag 1 (Refer to 3.13.6 Alarm flag)

0006h Alarm flag 2 (Refer to 3.13.6 Alarm flag)

0007h None

0008h Data instruction information 2 ∗1 Data instruction information 1 ∗1

0009h

Data display 1(Refer to 3.13.8 Data display)

000Ah Data display 2(Refer to 3.13.8 Data display)

000Bh

Circulating fluid set temperature

-3276.8 to 3276.7℃ = 8000h to 7FFFh (0.1℃/dig) (Refer to 3.13.9 Circulating fluid set temperature)

R/W

000Ch None ∗3

Reserv

∗2

000Dh None

000Eh None

000Fh Data instruction 2 ∗4 Data instruction1 ∗4

∗1 Data instruction information (Refer to 3.13.7 Data instruction information) ∗2 Operation Start Command (Refer to 3.13.10 Operation Start Command) ∗3 Serial remote instruction (Refer to 3.13.11 Serial remote instruction)

∗4

Data instruction (Refer to 3.13.12 Data instruction)

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HRX-OM-W004

Chapter 3 Serial communication

HRR Series 3.13 Register Map

3-19

3.13.1 Circulating fluid discharge temperature

Read the circulating fluid discharge temperature in the selected temperature unit (°C or °F). Read the circulating fluid discharge temperature which is displayed on the operation display panel. (Offset temperature is displayed if offset function is set).

3.13.2 Circulating fluid flow rate

Read the circulating fluid flow rate in the selected pressure unit.

3.13.3 Circulating fluid discharge pressur

Read the circulating fluid discharge pressure in the selected pressure unit.

3.13.4 Electric conductivity of the circulating fluid

Electric conductivity of the circulating fluid is informed. 0 is announced when option-DM is not selected.

3.13.5 Status flag

The status of the product is read by the following assignment.

Status flag

Name Status flag

Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Bit Name Explanation

Run flag

Run status 0= Stop 1= Run

Operation stop alarm flag

Operation stop alarm given off status 0= Not occurred 1= Operation stop alarm given off

Operation continued alarm flag

Operation continued alarm given off status 0= Not occurred 1= Operation continued alarm

given off

Unused

―

Unused

―

Remote status flag

Remote status 0= Other than SERIAL mode 1= SERIAL mode

Unused

―

Unused

―

Unused

―

Completion of preparation (TEMP READY) flag

Completion of preparation (TEMP READY) status 0= Condition isn’t formed 1= Condition is formed

Temperature range monitoring （TEMP OUT）flag

Temperature range monitoring(TEMP OUT) status

0= Condition is not established 1=Condition is established

Notice for maintenance

Notice for maintenance status 0 = Not generated 1 = Generated

Unused

―

Unused

―

Unused

―

Unused

―

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Chapter 3 Serial communication

3.13 Register Map HRR Series

3-20

3.13.6 Alarm flag

Each type of alarm which occurs in the product is read with the following assignment.

Name Alarm flag 1

Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Name Alarm flag 2

Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Bit Name Explanation

Alarm flag 1

0 AL01 : Tank level drop abnormality

Alarm given off status 0= Not occurred 1= Occurred

1 AL02 : Low level in tank 2 Unused 3 AL04 : Water leakage 4 Unused 5 Unused 6 Unused 7 Unused 8 AL09 : Circulating fluid discharge pressure rise 9 AL10 : Flow rate decreased 10 AL11 : Ambient temperature is out of the range 11 AL12 : Electric conductivity increase 12 AL13 : NOT TEMP READY 13 AL14 : Circulating fluid temperature increase 14 AL15 : Circulating fluid temperature decrease 15 Unused

Alarm flag 2

0 AL17 : Low flow rate 1 AL18 : High circulating fluid discharge temp. 2 AL19 : High circulating fluid return temp. 3 Unused 4 AL21 : High circulating fluid discharge pressure 5 Unused 6 Unused 7 AL24 : Memory error 8 AL25 : Contact input1 9 AL26 : Signal detection 10 AL27 : Contact input 2 11 AL28 : Signal detection 12 AL29 : Forced stop 13 AL30 : Notice for maintenance 14 AL31 : Communication error 15 AL32 : Compressor circuit error

Page 51

HRX-OM-W004

Chapter 3 Serial communication

HRR Series 3.13 Register Map

3-21

3.13.7 Data instruction information

Instruction information set in the Data instruction is displayed. Refer to

3.13.12 "Data Instruction” for details.

3.13.8 Data display

The content selected for the Data instruction is displayed in Data display 1 and Data display 2. Table below shows the data type which can be displayed and the range.

No.

Item Range

1 TH1(circulating fluid return temp.)

-327.6～327.6℃ = F334h～0CCCh（0.1℃/dig）

3.13.9 Circulating fluid set temperature

The circulating fluid set temperature can be set during SERIAL mode.

If the temperature exceeds the upper limit of the circulating fluid set temperature range, the circulating fluid set temperature is changed to the upper limit value. If it is lower than the lower limit, the circulating fluid set temperature is changed to the lower limit value.

3.13.10 Operation Start Command

The operation can be controlled by sending the operation start command during SERIAL mode.

0=Run stop

1=Run start

3.13.11 Serial remote instruction

Operation mode can be switched to SERIAL mode during LOCAL mode or DIO mode by enabling/ disabling the communication mode and serial communication mode.

0：

None, 1：LOCAL/DIO mode, 3：SERIAL mode

Example 1) Switch the SERIAL mode

Enable serial communication mode with communication mode switching enabled. Set a 1 to the 4th and 5th bit of address 00C0h.

Example 2) Switch the LOCAL/ DIO mode

Disables serial communication mode and enables the communication mode. Set a 1 to the 4th bit and set a 0 to the 5th bit of address 00C0h.

4th bit 0= Communication mode cannot be switched

1= Communication mode can be switched

5th bit

0=Serial communication mode disabled

Serial communication mode enabled

Page 52

HRX-OM-W004

Chapter 3 Serial communication

3.13 Register Map HRR Series

3-22

3.13.12 Data instruction

Selected data is displayed in the address 0009h (Data display 1) and 0010h (Data display 2) by setting the Data instruction. Data types which can be displayed are shown below. Data display 1 shows the data instructed by the Data instruction 1 (instructed by low order 8 bits). Data display 2 shows the data instructed by the Data instruction 2 (instructed by high order 8 bits).

MSB LSB

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Data instruction 2 Data instruction 1

Bit 7 to 0：Data instruction 1

0：

None

1：TH1(circulating fluid return temp)

Bit 15 to 8：

Data instruction 2

0：

None

1：TH1(circulating fluid return temp)

Example)

Display the circulating fluid return temperature When 0001h is entered to the address 000F, the circulating fluid return temperature is displayed in 0009h.

■

Communication example

○When reading the circulating fluid return temp to the data display 1

○Slave Address：No.1

○Function code 23: One data of 0009h is read and one data is written to 000Fh

(Set circulating fluid return temperature to data instruction 1. Read circulating fluid

return temp of data display 1.)

Request message 011700090001000F0001020001

Field name

Example

(HEX)

ASCII mode

character data

RTU mode

binary data

Header

- “:” None

Slave Address

0x01 “0”,“1” 0x01

Function

0x17 “1”,“7” 0x17

Head address of specified register

0x0009 “0”,“0”,“0”“9” 0x00,0x09

Head address of specified register

0x0001 “0”,“0”,“0”“1” 0x00,0x01

Head address of specified register

0x000F “0”,“0”,“0”,“F” 0x00,0x0F

Quantity of register to write

0x0001 “0”,“0”,“0”,“1” 0x00,0x01

Quantity of byte to read

0x02 “0”,“2” 0x02

Information written to 000Fh

(Data instruction)

0x0001 “0”,“0”,“0”,“1” 0x00,0x01

Checksum ASCII:LRC RTU:CRC

- “C”,”B” 0x45,0xBE

Trailer

- CR/LF None

- Total

quantity of byte

31 15

Page 53

HRX-OM-W004

Chapter 3 Serial communication

HRR Series 3.13 Register Map

3-23

Response message 01170200C8

Field name

Example

(HEX)

ASCII mode

character data

RTU mode

binary data

Header - “:”

None

Slave Address

0x01

“0”,“1” 0x01

Function

0x17

“1”,“7” 0x17

Quantity of byte to read 0x02

“0”,“2” 0x02

Information of 0009

(TH1(Circulating fluid return temp))

0x00C8

“0”,“0”,“C”,“8” 0x00,0xC8

Checksum ASCII:LRC RTU:CRC - “1”,“E” 0xBC,0x22

Trailer - CR/LF

None

To ta l

quantity of byte

15 7

Page 54

HRX-OM-W004

Chapter 3 Serial communication

3.13 Register Map HRR Series

3-24

Page 55

HRX-OM-W004

Chapter 4 Communication alarm function

HRR Series 4.1 Communication alarm occurs

4-1

Chapter 4 Communication alarm

function

Monitors whether the serial communication is sent/received properly between the product and the customer’s device. This feature is only valid when the communication mode is set to SERIAL mode.

Abnormal signals or disconnection of the communication cable can be notified immediately by setting the alarm function to match the interval at which messages are sent from the customer device. When the communication is restored, the alarm is automatically reset.

Do not use this function when the customer device does not send messages regularly.

4.1 Communication alarm occurs

Fig 4.1-1 shows when an alarm occurs. Refer to 4.3 ‘’Setting and checking’’ for the setting method.

●

Changing of communication error

Operation continues when an alarm occurs.

●

Time for monitoring the communication error

180 sec

When the customer's device is sending messages every 60sec, if the communication cable is disconnected and no message is received for 180sec, the product generates AL29 communication error alarm to notify the error.

This productYour system

Write or read

60 sec.

Broken

wire

coming

Passage o

180 sec.

Excess at no

communicatio

n monitoring

time.

L29 Communication error is generated.

Operation continues

Monitoring

time

Monitoring

time

Fig

4.1-1 Communication alarm example

Page 56

HRX-OM-W004

Chapter 4 Communication alarm function

4.2 Communication alarm reset HRR Series

4-2

4.2 Communication alarm reset

When AL29 communication error has been generated, the alarm is automatically reset when the disconnection of the communication cable is fixed, and the message from the customer is received. If operation is set to stop when a communication alarm occurs, restart the operation if necessary.

This productYour system

Write or read

60 sec.

Broken

wire

coming

L29 Communication

error is generated.

Monitoring

time

Monitoring

time

Normal

connection

Communication erro

automatic restoration

Write or read

60 sec.

：：

Fig 4.2-1 Communication alarm restoration example

4.3 Setting and checking

4.3.1 Setting and checking items

The table below explains the setting items of the communication alarm function and default values.

Table

4.3-1 Communication error setting item

Initial value Select/setting range

TOP

screen

－

AL.ST

－

－－

No.24

screen

Changing of「AL29

：

Communication error alarm

」

WRN OFF/WRN/FLT COMM⇒ALARM

－

Set the operation when "AL29: Communication error alarm"is generated.

No.25

screen

Detection time for 「AL29

：

Communication error alarm

」

30 1～600 COMM⇒TIME SEC

Set the alarm monitoring time when"AL29: Communication error alarm"is generated.Alarm signal is generated when the monitoring time is exceeded.

Screen

No.

Ite m

Display unit

Unit

display

ContentsUpper stage（White

）

Lower stage

（

Green

）

Page 57

HRX-OM-W004

Chapter 4 Communication alarm function

HRR Series 4.3 Setting and checking

4-3

4.3.2 Setting and checking

Alarm setting menu Top page

1. Displays Communication Setting Menu.

Swiching of communication error alarm

2. Press the [▼] key. Displays screen for setting the communication error alarm

operation.

Operation for alarm AL29: Communication error can be selected.

Set value Contents

Initial value

OFF

Alarm is not generated.

―

WRN

Operation of this product will continue when the alarm occurs.

○

FLT

Operation of this product will stop when the alarm occurs.

―

℃

Main menu

TOP

screen

Monitor Menu

TOP

screen

[MENU]key

Standard setting menu

TOP

screen

[MENU]key

Alarm setting menu

TOP screen

Operation for communication error alarm

COMM ⇒ ALARM(Alternately displayed)

Press [MENU]

and hold for 5

seconds.

[MENU]key

Page 58

HRX-OM-W004

Chapter 4 Communication alarm function

4.3 Setting and checking HRR Series

4-4

Communication error alarm detection time

3. Press the [▼] key. Displays screen for setting the communication error alarm detection

time.

Time (sec.) to generate alarm AL29: Communication error can be changed.

●

Setting range: 1 to 600sec. (Initial value: 30sec.)

SEC

Communication error alarm detection time

COMM ⇒ TIME(Alternately displayed)

Page 59

Page 60

Revision

Rev A：November.2018

4-14-1, Sotokanda, Chiyoda-ku, Tokyo 101-0021 JAPAN Tel: + 81 3 5207 8249 Fax: +81 3 5298 5362 URL http://www.smcworld.com

SMC Networks HRR012-W-20, HRR018-A-20, HRR018-W-20, HRR024-W-20, HRR030-W*-20 Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

SMC Networks HRR012-W*-20, HRR018-A*-20, HRR018-W*-20, HRR024-W*-20, HRR030-W*-20 Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

SMC Networks HRR012-W-20, HRR018-A-20, HRR018-W-20, HRR024-W-20, HRR030-W*-20 Operation Manual