SMC Networks HRS400-A 46 Series Operation Manual
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SMC Networks HRS400-A 46 Series Operation Manual

Thermo-chiller air-cooled refrigerated type
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DOC1003626
Operation Manual
Communication function
Thermo-chiller
Air-Cooled refrigerated type
HRS400-A
-46-
Keep this manual available whenever necessary
© 2022 SMC Corporation All Rights Reserved

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Summary of Contents for SMC Networks HRS400-A 46 Series

  • Page 1 DOC1003626 Operation Manual Communication function Thermo-chiller Air-Cooled refrigerated type   HRS400-A -46- Keep this manual available whenever necessary © 2022 SMC Corporation All Rights Reserved...
  • 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. ●...

  • Page 3: Table Of Contents

    DOC1003626 Contents Contents Read before using ............1-1 Operation mode and operation method ..............1-2 Change of operation mode ..................1-3 Communication port ....................1-5 Touch panel flow ..................... 1-6 Contact input/output communication / Analog output communication ..................2-1 Precautions for communication ................2-1 2.1.1 Precautions wiring communication ..................
  • Page 4 DOC1003626 Contents 3.13.1 Circulating fluid discharge temperature ................3-19 3.13.2 Circulating fluid flow rate ....................3-19 3.13.3 Circulating fluid discharge pressure .................. 3-19 3.13.4 Circulating fluid electrical conductivity ................3-19 3.13.5 Status flag .......................... 3-20 3.13.6 Alarm flag........................... 3-21 3.13.7 Data display ........................

  • Page 5: Read Before Using

    DOC1003626 Chapter 1 Read before using Read before using The communication of this device consists of contact input/output communication and analog 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.

  • Page 6: Operation Mode And Operation Method

    DOC1003626 Chapter 1 Read before using 1.1 Operation mode and operation method LOCAL, DIO and SERIAL are available as the operation modes. Table 1.1-1 explains the operation modes. The default setting is LOCAL. The operation method depends on the operation mode. Table 1.1-2 shows how the operation mode and method of operation are related.

  • Page 7: Change Of Operation Mode

    DOC1003626 Chapter 1 Read before using Table 1.1-2 Operation mode and operation Operation mode SERIAL LOCAL Operation Run/Stop ○ × × × Touch panel Run/Stop Circulating fluid ○ ○ × × Touch panel temperature setting Settings other than ○ ○ ○...
  • Page 8 DOC1003626 Chapter 1 Read before using Contact input 3 Mode request signal Serial communication Mode request flag Operation mode LOCAL SERIAL LOCAL Select the LOCAL in the touch panel Fig. 1-1 Mode switching by the mode request (Standard) Contact input 3 Mode request signal Serial communication Mode request flag...

  • Page 9: Communication Port

    DOC1003626 Chapter 1 Read before using 1.3 Communication port The communication port In the lower left of the electrical component box is used for communication. Fig.1-3 shows the location of the communication port. Contact input / output signal connector D sub 25 female pin (socket) type Serial communication connector...

  • Page 10: Touch Panel Flow

    DOC1003626 Chapter 1 Read before using 1.4 Touch panel flow Press the [Comm. Setting] on the menu, make the communication settings from the various setting screens. Fig.1-4 Communication setting touch panel flow 1.4 Touch panel flow HRS400-A-46...

  • Page 11: Contact Input/Output Communication / Analog Output Communication

    DOC1003626 Chapter 2 Contact input/output communication / Analog output communication Contact input/output communication / Analog 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.

  • Page 12: Precautions After Wiring And Before Communication

    DOC1003626 Chapter 2 Contact input/output communication / Analog output communication 2.1.2 Precautions after wiring and before communication ○Check or set the Operation mode by the touch panel. ・Operation mode shall be DIO. You can read also in the other mode, but you can not run / stop if it is not DIO mode.
  • Page 13 DOC1003626 Chapter 2 Contact input/output communication / Analog output communication 表 2.2-3 接点入出力/アナログ出力ピン番号 Item Division Factory default DC24V output － Output DC24V input － Input Contact input signal 1 Run/Stop *1 Input Contact input signal 3 Operation mode request signal (fix)*2 Input Contact output signal 6 OFF*1...
  • Page 14 DOC1003626 Chapter 2 Contact input/output communication / Analog output communication When using this product's power supply, connect pin 1 to pin 2 and the COM side of each contact input signal to pin 14. This product side Customer system side DC +24V(output) DC24V DC +24V(input)

  • Page 15: Contact Input Signal

    DOC1003626 Chapter 2 Contact input/output communication / Analog output communication 2.3 Contact input signal There are 3 contact input signals. Two of them can be customized by the customer. 2.3.1 Setting of contact input signal type and form The type of contact input signal can be set from the “1.4 Touch panel flow” (Refer to "4.
  • Page 16 DOC1003626 Chapter 2 Contact input/output communication / Analog output communication Table 2.3-1 Setting of contact input signal form Indication Item Setting and selection A contact (normally open) Contact type B contact (normally closed) Alternate Contact input Signal Input 1 signal 1 form Momentary [Off]...

  • Page 17: Run/Stop・Run・Stop・External Switch Signal

    DOC1003626 Chapter 2 Contact input/output communication / Analog output communication 2.3.2 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.

  • Page 18: External Switch Signal

    DOC1003626 Chapter 2 Contact input/output communication / Analog output communication 4) 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 2.3.3 for details of the external switch.
  • Page 19 DOC1003626 Chapter 2 Contact input/output communication / Analog output communication Operation start Operation stops due to the alarm. Run status of this product Signal reading start Stop Alarm generation External switch "Off Detect" time "Delay" time “Delay” time and “off detect” time You can select the operation of this product when an alarm occurs by the contact input signal.

  • Page 20: Contact Output Signal

    DOC1003626 Chapter 2 Contact input/output communication / Analog output communication Table 2.3-3 Communication error, detection of contact input signal and operation setting Indication Item Setting and selection Setting range Disabled Alarm “AL34: Operation Comm. Waiting 30 to 600sec Communication continues during Error time *30sec...

  • Page 21: Contact Output Signal 4 To 6

    DOC1003626 Chapter 2 Contact input/output communication / Analog output communication Table 2.4-1 Setting of contact output signal 1 to 3 Indication Item Signal type Setting and selection A contact Contact output Operation status (normally open) Output 1 signal 1 signal B contact (normally closed) A contact...
  • Page 22 DOC1003626 Chapter 2 Contact input/output communication / Analog output communication Table 2.4-3 Signal type for contact output signal 4 to 6 Indication Item Contact type Explanation Normally open Disabled Normally closed Operation : closed Operation status signal Stop : closed DIO mode : closed DIO Mode DIO mode signal...
  • Page 23 DOC1003626 Chapter 2 Contact input/output communication / Analog output communication Table 2.4-4 List of alarm selection *1 Alarm No. Indication Explanation AL01 Low Level FLT Abnormal low tank fluid level AL02 Low Level WRN Low tank fluid level AL06 Fan Inverter Fan failure Abnormal rise of circulating AL09...

  • Page 24: Analog Output Signal

    DOC1003626 Chapter 2 Contact input/output communication / Analog output communication 2.5 Analog output signal The product has two analog output signals. Setting of the analog output signal is done by the "1.4 Touch panel flow” (Refer to "3. Analog Output Setting" screen). The following signals can be output as analog signals: Analog output signal 1––...

  • Page 25: Serial Communication

    DOC1003626 Chapter 3 Serial communication Serial communication Serial communication (RS-485/RS232C) enables the remote control of run/stop of the product and temperature setting, 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 controller computer (e.g.

  • Page 26: Communication Specification

    DOC1003626 Chapter 3 Serial communication 【Tips】 ・1 controller : 1 product, or 1 controller: 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. Controller This product Do not connect any wire to other PIN numbers.

  • Page 27: Modbus Communication Function

    DOC1003626 Chapter 3 Serial communication Table 3.3-2 Communication specification of Modbus communication function Item Specification Select from EIA RS-485 / RS-232C Standard Communication speed Select from 9600bps / 19200bps Data・bit length 7bit(ASCII) / 8bit(RTU) Stop・bit length 1bit Data transfer direction Parity Even parity ASCII character string (ASCII) / Binary data (RTU)

  • Page 28: Precautions For Communication

    DOC1003626 Chapter 3 Serial communication 3.5 Precautions for communication 3.5.1 Precautions after wiring and before communication ○Check or set the each communication setting by the touch panel. The communication specification shall be the customer’s ・ communication standard. ・ The operation mode shall be the SERIAL mode. (When mode request flag is activated, SERIAL mode is selected.

  • Page 29: Setting Method

    DOC1003626 Chapter 3 Serial communication 3.6 Setting method Set of serial communication is done from “1.4 Touch panel flow” (Refer to "2. Serial communication setting" screen). Serial communication setting Table 3.6-1 Serial communication setting Indication Item Setting, selection and display Default setting ASCII code ○...
  • Page 30 DOC1003626 Chapter 3 Serial communication Table 3.6-2 Communication status Communication Contents setting 8001 Normal message 4801 An abnormal number of data has been sent from the customer's equipment. 4401 Trying to access to the outside address of the register map that supported by this product.

  • Page 31: Communication Sequence

    DOC1003626 Chapter 3 Serial communication 3.7 Communication sequence Starts with a request message from the customer’s system (controller), and finishes with a response message from this product (device). This product operates as a device. It does not send any requests. Customer's system This product (controller)
  • Page 32 DOC1003626 Chapter 3 Serial communication Table 3.8-1 ASCII mode message frame b)Device e)Checksum a)Start c)Function d)Data f)End Address (LRC) [CR] [LF] ～ a) Start The start of the message. [:](3Ah) (ASCII) b) Device Address This is a number to identify this product. “1" is the default setting. This can be changed by the touch panel.

  • Page 33: Function Code

    DOC1003626 Chapter 3 Serial communication 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 code Table 3.9-1 shows function codes to read or write register. Refer to "3.11 Explanation of function codes".

  • Page 34: Crc(Rtu)

    DOC1003626 Chapter 3 Serial communication 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.
  • Page 35 DOC1003626 Chapter 3 Serial communication  Calculation Example Example) Change circulating fluid set temperature 23.4 °C Sending data 0106000B00EA ○Device Address: No.1 ○Function: No.6 ○Writing address: 000Bh ○Writing data: 00EAh Data No. value value value value value value Data 0001h 0006h 0000h 000Bh...

  • Page 36: Explanation Of Function Codes

    DOC1003626 Chapter 3 Serial communication 3.11 Explanation of function codes 3.11.1 Function code: 04 Reading multiple registers Register data of assigned points from assigned address is read. ■ Communication example ○Device Address: No.1 ○Read 11 pieces data from register 0000h. ...

  • Page 37: Function Code: 06 Writing Registers

    DOC1003626 Chapter 3 Serial communication Response message 01041600C801C2002D00C80011000000000000000000000000 Example ASCII mode RTU mode Field name (HEX) character data binary data Header “:” None Device address 0x01 “0”,“1” 0x01 Function 0x04 “0”,“4” 0x04 0x16 Quantity of bytes to read “1”,“6” 0x16 Information of 0000h 0x00C8 “0”,“0”,“C”,“8”...
  • Page 38 DOC1003626 Chapter 3 Serial communication Request message 0106000C0002 Example ASCII mode RTU mode Field name (HEX) character data binary data Header “:” None Device address 0x01 “0”,“1” 0x01 Function 0x06 “0”,“6” 0x06 Head address of specified 0x000C “0”,“0”,“0”,“C” 0x00,0x0C register Information written to 000Ch 0x0002 “0”,“0”,“0”,“2”...

  • Page 39: Function Code: 16 Writing Multiple Registers

    DOC1003626 Chapter 3 Serial communication 3.11.3 Function code: 16 Writing multiple registers Register data of assigned points from assigned address is written. ■ Communication example ○Device Address: No.1 ○Write two consecutive data from register 000Bh.  Change of circulating fluid set temperature [ 23.5°C ] ...

  • Page 40: Negative Response

    DOC1003626 Chapter 3 Serial communication 3.12 Negative response 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. ...
  • Page 41 DOC1003626 Chapter 3 Serial communication ■ Communication example ○Device Address: No.1 ○Read seven consecutive data from register 0100h which is out of range . Request message 010401000007 Example ASCII mode RTU mode Field name (HEX) character data binary data Header “:”...

  • Page 42: Register Map

    DOC1003626 Chapter 3 Serial communication 3.13 Register map Address Contents Value Hexadecimal number : Circulating fluid F334h, FD44h to 08FCh 0000h discharge temperature Decimal number : -3276, -700 to 2300(×0.1°C) Hexadecimal number : 0001h 8000h, 0000h to 06F3h Circulating fluid flow rate Decimal number : -32768, 0 to 1779(×0.1LPM) Hexadecimal number : Circulating fluid...

  • Page 43: Circulating Fluid Discharge Temperature

    DOC1003626 Chapter 3 Serial communication 3.13.1 Circulating fluid discharge temperature Notifies the circulating fluid discharge temperature of this product. (°C or °F). Read the circulating fluid discharge temperature which is displayed on the touch panel. (Offset temperature is displayed if offset function is set).

  • Page 44: Status Flag

    DOC1003626 Chapter 3 Serial communication 3.13.5 Status flag The status of the product is read by the following assignment. Status flag Name Status flag Name Explanation Run status Run flag 0 = Stop 1 = Run Operation stop alarm occurred status Operation stop alarm flag 0 = Not occurred 1 = Operation stop alarm occurred...

  • Page 45: Alarm Flag

    DOC1003626 Chapter 3 Serial communication 3.13.6 Alarm flag Each type of alarm which occurs in this product is read with the following assignment. Name Alarm flag 1 Name Alarm flag 2 Name Explanation Abnormal low tank fluid level Low tank fluid level None None None...

  • Page 46: Data Display

    DOC1003626 Chapter 3 Serial communication None Communication error Outside of the ambient temperature range Maintenance alarm Refrigeration circuit failure Sensor failure Controller failure Alarm given off status Compressor inverter error 0= Not occurred Compressor inverter communication error 1= Occurred Pump inverter error Pump inverter communication error None None...

  • Page 47: Operation Instruction

    DOC1003626 Chapter 3 Serial communication 3.13.9 Operation instruction Name Operation instruction 15 14 13 12 11 10 Name Explanation Operation Start/Stop Operation start command 0 = Stop 1 = Run Mode request Mode request flag 0 = None 1 = Yes Alarm reset Alarm reset flag 0 = None 1 = Yes...
  • Page 48 DOC1003626 Chapter 3 Serial communication Name Data instruction 2 Data instruction 1 Value Name None Ambient temperature External tuning temperature Heat exchanger inlet temperature Notice for maintenance Refrigerant circuit high pressure None Ambient temperature External tuning temperature Heat exchanger inlet temperature Notice for maintenance Refrigerant circuit high pressure ■...
  • Page 49 DOC1003626 Chapter 3 Serial communication Request message 0106000F0001 Example ASCII mode RTU mode Field name (HEX) character data binary data Header “:” None Device address 0x01 “0”,“１” 0x01 Function 0x06 “0”,“6” 0x06 0x000F “0”,“0”,“0”,“F” 0x00,0x0F Address of the specified register Information written to 0043h 0x0001 “0”,“0”,“0”,“1”...
  • Page 50 DOC1003626 Chapter 3 Serial communication ● Function code 4 : Read one data of 0009h (Read out the ambient temperature of data display 1.) Request message 010400090001 Example ASCII mode RTU mode Field name (HEX) character data binary data Header “:”...

  • Page 51: Communication Alarm Function

    DOC1003626 Chapter 4 Communication alarm function Communication alarm function Monitors whether the serial communication is sent/received properly between this product and the customer’s equipment. This feature is only valid when the operation 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's equipment.

  • Page 52: Communication Alarm Reset

    DOC1003626 Chapter 4 Communication alarm function 4.2 Communication alarm reset When AL34 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.
  • Page 54 Revision 4-14-1, Sotokanda, Chiyoda-ku, Tokyo 101-0021 JAPAN Tel: + 81 3 5207 8249 Fax: +81 3 5298 5362 https://www.smcworld.com Note: Specifications are subject to change without prior notice and any obligation on the part of the manufacturer. © 2022 SMC Corporation All Rights Reserved...

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