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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. ●...
HRX-OM-W004 Contents Contents Chapter 1 Read before using ............. 1-1 Communication mode and operation method ............1-1 Communication port ....................1-3 Key operations ......................1-4 Parameters ......................... 1-8 Chapter 2 Contact input/output communication ......2-1 Precautions for communication ................2-1 2.1.1 Precautions wiring communication ..................
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HRX-OM-W004 Contents 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 ................
HRX-OM-W004 Chapter 1 Read before using 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.
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HRX-OM-W004 Chapter 1 Read before using Table 1.1-1 Communication modes. Communication Explanation Setting Display mode Run / stop and circulating Select contact input signal fluid temperature setting are LOCAL function 1 selection to "OFF" None possible with the operation (initial setting) / "SW". panel.
HRX-OM-W004 Chapter 1 Read before using 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. Connector for contact input / output signal Dsub 15 pin female (socket) type Serial communication connector Dsub 9 pin female (socket) type Fig 1.2-1 Communication port...
HRX-OM-W004 Chapter 1 Read before using 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”. Basic setting mode Main menu Alarm display menu Power supply ON Circulating fluid outlet temperature Circulating fluid set...
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HRX-OM-W004 Chapter 1 Read before using Maintenance notification menu Advanced setting MENU MENU Press and hold MENU mode for approximately 5 second. ▲/▼ Maintenance MENU notification number (Notification number Minimum) ▲/▼ Maintenance notification number ▲/▼ To switch to 「Advanced setting Maintenance mode」...
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HRX-OM-W004 Chapter 1 Read before using Basic Advance setting mode setting Alarm setting menu Standard setting menu Monitor menu mode ALST MENU MENU MENU MENU MENU MENU ▲/▼ ▲/▼ Changing of circulating fluid ▲/▼ ▲/▼ ▲/▼ Temperature of the TEMP READYband discharge pressure Key-lock Unused...
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HRX-OM-W004 Chapter 1 Read before using Communication setting menu Reset menu Information moniter menu Alarm history menu INFO aAL h MENU MENU MENU MENU MENU MENU MENU Example ▲/▼ ▲/▼ ▲/▼ Digital output signal 2 ▲/▼ ▲/▼ Model Alarm Serialprotocol function selection AL17 Setting date reset...
HRX-OM-W004 Chapter 1 Read before using 1.4 Parameters Table 1.4-1 ‘’Communication setting menu Parameters’’ explains the parameters of the 「communication setting menu」. Table Communication setting menu Parameters 1.4-1 Display unit Reference Upper stage ( White ) ScreenNo. Item Lower stage page (...
HRX-OM-W004 Chapter 2 Contact input/output communication 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.
HRX-OM-W004 Chapter 2 Contact input/output communication 2.2 Communication specification Table 2.2-1 DIO Communication specification Item Specification Connector type (for this product) Dsub 15P type female connector Insulation system Photo coupler Rated input voltage DC24V Contact input Used input voltage DC 21.6 to 26.4V signal Rated input current 5mA TYP...
HRX-OM-W004 Chapter 2 Contact input/output communication 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 Dis play unit Display Upper stage (...
HRX-OM-W004 Chapter 2 Contact input/output communication 2.4.2 Setting and checking Communication setting menu TOP screen Displays communication setting menu. [MENU] key Press and hold ℃ [MENU] key (5 seconds) Main menu Monitor Menu TOP screen TOP screen [MENU] key [MENU] key [MENU]...
HRX-OM-W004 Chapter 2 Contact input/output communication Contact input signal 1 type Press the [▼] key. Displays screen for setting the type of Contact input signal 1. Contact input signal 1 type DIN1 ⇒ SW ⇒ TYPE( Alternately displayed ) Displays the type of Contact input signal 1. Initial value Set value Contents...
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HRX-OM-W004 Chapter 2 Contact input/output communication Contact input signal 2 type Press the [▼] key. Displays screen for setting the type of Contact input signal 2. Contact input signal 2 type DIN2 ⇒ SW ⇒ TYPE( Alternately displayed ) Displays the type of Contact input signal 2. Initial value Set value Contents...
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HRX-OM-W004 Chapter 2 Contact input/output communication Initial value Set value Explanation (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 ―...
HRX-OM-W004 Chapter 2 Contact input/output communication Contact output signal 1 Select maintenance 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.
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HRX-OM-W004 Chapter 2 Contact input/output communication Select the contact output signal 2 operation. Initial value Set value Contents N.O. type ○ ― N.C. type Contact output signal 2 selected alarm 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”...
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HRX-OM-W004 Chapter 2 Contact input/output communication Initial value Set value Explanation (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 ―...
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HRX-OM-W004 Chapter 2 Contact input/output communication Contact output signal 3 Select maintenance 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. Contact output signal 3 Selected maintenance alarm No.
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HRX-OM-W004 Chapter 2 Contact input/output communication 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.
HRX-OM-W004 Chapter 2 Contact input/output communication 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. Run/stop signal (Alternate) Product condition Stop 2) Run/stop signal ( Signal type : Momentary ) The state changes when the input signal from the customer goes ON.
HRX-OM-W004 Chapter 2 Contact input/output communication 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. Run/Stop signal External switch signal ②...
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HRX-OM-W004 Chapter 2 Contact input/output communication Operation start Operation stops due to the alarm. Run status of this product Signal reading start Stop CLOSE Alarm generation External switch OPEN Delay timer of reading OFF detection timer ■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.
HRX-OM-W004 Chapter 2 Contact input/output communication 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).
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HRX-OM-W004 Chapter 2 Contact input/output communication Table 2.6-2 Operation of contact output signal Class of signal Operation of contact output signal Display Function Operation N.O type Normally, output signal is OFF (open) Without output N.C type Normally, output signal is ON (close) N.O type When the product operates, signal turns on.
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HRX-OM-W004 Chapter 2 Contact input/output communication 2.6 Contact output signal HRR Series 2-18...
HRX-OM-W004 Chapter 3 Serial communication 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.
HRX-OM-W004 Chapter 3 Serial communication Master This product 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...
HRX-OM-W004 Chapter 3 Serial communication 3.4 MODBUS communication function MODBUS protocol is a communication protocol developed by Modicon. It is used to communicate with a PC or PLC. Register content is read and written by this communication protocol. This communication has the following features. ・...
HRX-OM-W004 Chapter 3 Serial communication 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.
HRX-OM-W004 Chapter 3 Serial communication 3.6.2 Setting and checking Communication setting menu TOP screen Displays communication setting menu. [MENU] key Press and hold ℃ [MENU] key (5 seconds) Main menu Monitor menu TOP screen TOP screen [MENU] key [MENU] key [MENU]...
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HRX-OM-W004 Chapter 3 Serial communication Communication specification Press the [▼] key. Displays screen for setting the communication specifications. Communication specification Select the communication specification. Initial value Set value Contents RS-485 ○ RS-232C 232C ― RS-485 terminal unit Press the [▼] key. Displays screen for setting RS-485 terminal unit. RS-485 terminal unit Select RS-485 terminal unit.
HRX-OM-W004 Chapter 3 Serial communication Communication speed Press the [▼] key. Displays screen for setting the communication speed. Communication speed Selects the communication speed. Initial value Set value Contents 9600 bps ― 19200 bps 19.2 ○ 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).
HRX-OM-W004 Chapter 3 Serial communication 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).
HRX-OM-W004 Chapter 3 Serial communication 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 b)Slave e) Checksum a)Start c)Function d)Data f)End Address (CRC)
HRX-OM-W004 Chapter 3 Serial communication 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.
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HRX-OM-W004 Chapter 3 Serial communication (Example 1) The least significant bit was a 1. … 0 0 0 0 0 0 0 1 bit shift in the lowest direction … 0 0 0 0 0 0 0 Add 0 to the top Execute ExOR if 1 (Example 2) The least significant bit was a 0.
HRX-OM-W004 Chapter 3 Serial communication Classification Result Contents 0106000B00FE message for calculation Calculation Perform (1) to (4) for the 1st value (0001h) and then, 807Eh perform (5). Perform (6) for 2nd value (0006h) and then, perform 2280h (5). Perform (6) for 3rd. value (0000h) and then, perform A023h (5).
HRX-OM-W004 Chapter 3 Serial communication 01040E00D40000000D0000020100000000 Response message Example ASCII mode RTU mode Field name character data binary data (HEX) Header “:” None Slave Address 0x01 “0”,“1” 0x01 Function 0x04 “0”,“4” 0x04 0x0E “0”,“E” 0x0E Quantity of bytes to read 0000h( Information of Circulating fluid...
HRX-OM-W004 Chapter 3 Serial communication 0106000C0001 Response message Example ASCII mode RTU mode Field name character data binary data (HEX) Header “:” None Slave Address 0x01 “0”,“1” 0x01 Function 0x06 “0”,“6” 0x06 0x000C “0”, “0”,“0”,“C” 0x00,0x0C Address of register to write 0x0001 “0”,“0”,“0”,“1”...
HRX-OM-W004 Chapter 3 Serial communication 0110000B0002 Response message Example ASCII mode RTU mode Field name character data binary data (HEX) Header “:” None Slave Address 0x01 “0”,“1” 0x01 Function 0x10 “1”,“0” 0x10 0x000B “0”,“0”,“0”,“B” 0x00,0x0B Head address of register to write 0x0002 “0”,“0”,“0”,“2”...
HRX-OM-W004 Chapter 3 Serial communication 011706000000000000 Response message Example ASCII mode RTU mode Field name character data binary data (HEX) Header “:” None Slave Address 0x01 “0”,“1” 0x01 Function 0x17 “1”,“7” 0x17 0x06 “0”,“6” 0x06 Quantity of bytes to read Information of 0004h (Status flag 1) 0x0000 “0”,“0”,“0”,“0”...
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HRX-OM-W004 Chapter 3 Serial communication 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 ■...
HRX-OM-W004 Chapter 3 Serial communication 3.13 Register Map Bit Format Address Circulating fluid discharge temperature 0000h -327.6 to 327.6℃ = F334h to 0CCCh(0.1℃/dig) (Refer to 3.13.1 Circulating fluid discharge temperature) Circulating fluid flow rate 0001h -3276.8 to 3276.7LPM = 8000h to 7FFFh(0.1LPM/dig) (Refer to 3.13.2 Circulating fluid flow rate) Circulating fluid discharge pressure 0002h...
HRX-OM-W004 Chapter 3 Serial communication 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).
HRX-OM-W004 Chapter 3 Serial communication 3.13.6 Alarm flag Each type of alarm which occurs in the product is read with the following assignment. Name Alarm flag 1 Name Alarm flag 2 Name Explanation AL01 : Tank level drop abnormality AL02 : Low level in tank Unused AL04 : Water leakage Unused...
HRX-OM-W004 Chapter 3 Serial communication 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.
HRX-OM-W004 Chapter 3 Serial communication 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).
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HRX-OM-W004 Chapter 3 Serial communication 01170200C8 Response message Example ASCII mode RTU mode Field name character data binary data (HEX) Header “:” None Slave Address 0x01 “0”,“1” 0x01 Function 0x17 “1”,“7” 0x17 0x02 “0”,“2” 0x02 Quantity of byte to read Information of 0009 0x00C8 “0”,“0”,“C”,“8”...
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HRX-OM-W004 Chapter 3 Serial communication 3.13 Register Map HRR Series 3-24...
HRX-OM-W004 Chapter 4 Communication alarm function 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.
HRX-OM-W004 Chapter 4 Communication alarm function 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.
HRX-OM-W004 Chapter 4 Communication alarm function 4.3.2 Setting and checking Alarm setting menu Top page Displays Communication Setting Menu. Press [MENU] and hold for 5 ℃ [MENU] key seconds. Main menu Monitor Menu TOP screen TOP screen [MENU] key [MENU] key Standard setting menu Alarm setting menu TOP screen...
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HRX-OM-W004 Chapter 4 Communication alarm function Communication error alarm detection time Press the [▼] key. Displays screen for setting the communication error alarm detection time. Communication error alarm detection time COMM ⇒ TIME( Alternately displayed ) Time (sec.) to generate alarm AL29: Communication error can be changed. ●...
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