RKC INSTRUMENT HA400 Communication Instruction Manual
  1. Manuals
  2. Brands
  3. RKC INSTRUMENT Manuals
  4. Controller
  5. HA400 Series
  6. Communication instruction manual

RKC INSTRUMENT HA400 Communication Instruction Manual

Digital controller
Hide thumbs Also See for HA400:
Table of Contents

Advertisement

Quick Links

Download this manual See also: Instruction Manual, Operating Manual
Digital Controller
HA400/HA900
HA401/HA901
Communication
Instruction Manual
IMR01N03-E1
RKC INSTRUMENT INC.
®

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the HA400 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for RKC INSTRUMENT HA400

Summary of Contents for RKC INSTRUMENT HA400

  • Page 1 Digital Controller HA400/HA900 HA401/HA901 Communication Instruction Manual IMR01N03-E1 RKC INSTRUMENT INC. ®...
  • Page 2 All Rights Reserved, Copyright  2002, RKC INSTRUMENT INC.
  • Page 3 Thank you for purchasing this RKC instrument. In order to achieve maximum performance and ensure proper operation of your new instrument, carefully read all the instructions in this manual. Please place this manual in a convenient location for easy reference.
  • Page 4 CAUTION ! This is a Class A instrument. In a domestic environment, this instrument may cause radio interference, in which case the user may be required to take adequate measures. ! This instrument is protected from electric shock by reinforced insulation. Provide reinforced insulation between the wire for the input signal and the wires for instrument power supply, source of power and loads.

  • Page 5: Table Of Contents

    CONTENTS Page 1. OUTLINE ................1 2. SPECIFICATIONS..............2 3. WIRING .................5 3.1 Connect the Communication 1 ................5 3.2 Connect the Communication 2 ................8 4. SETTING ................13 4.1 Transfer to Setup Setting Mode..............14 4.2 Setting the Communication Parameters ............15 4.3 Communication Requirements ..............21 5.
  • Page 6 6.6 Message Format....................63 6.6.1 Read holding registers [03H] ................63 6.6.2 Preset single register [06H] ................64 6.6.3 Diagnostics (Loopback test) [08H] ..............65 6.6.4 Preset multiple registers [10H]................66 6.7 Data Configuration..................67 6.7.1 Data scale......................67 6.7.2 Caution for handling communication data............71 6.8 Data Map List....................72 7.

  • Page 7: Outline

    1. OUTLINE Digital Controller HA400/HA900/HA401/HA901 (hereafter, called controller) interfaces with the host computer via Modbus or RKC communication protocols. In addition, the controller has two communication ports, the three types of communication interfaces are available: RS-422A, RS-485 and RS-232C. For reference purposes, the Modbus protocol identifies the host computer as master, the controller as slave.

  • Page 8: Specifications

    2. SPECIFICATIONS !" RKC communication Interface: Communication 1: Based on RS-485, EIA standard Based on RS-232C, EIA standard Communication 2: Based on RS-485, EIA standard Based on RS-422A, EIA standard Based on RS-232C, EIA standard Specify the communication 1 and communication 2 separately when ordering 2-wire system, half-duplex multi-drop connection (RS-485) Connection method:...
  • Page 9 2. SPECIFICATIONS !" Modbus Interface: Communication 1: Based on RS-485, EIA standard Based on RS-232C, EIA standard Communication 2: Based on RS-485, EIA standard Based on RS-422A, EIA standard Based on RS-232C, EIA standard Specify the communication 1 and communication 2 separately when ordering Connection method: 2-wire system, half-duplex multi-drop connection (RS-485)
  • Page 10 2. SPECIFICATIONS Signal logic: RS-422A, RS-485 Signal voltage Logic V (A) − V (B) ≥ 2 V 0 (SPACE) V (A) − V (B) ≤ −2 V 1 (MARK) Voltage between V (A) and V (B) is the voltage of (A) terminal for the (B) terminal.

  • Page 11: Wiring

    3. WIRING WARNING To prevent electric shock or instrument failure, do not turn on the power until all the wiring is completed. 3.1 Connect the Communication 1 !" Connection to the RS-485 port of the host computer (master) #" Communication terminal number and signal details Terminal No.
  • Page 12 3. WIRING !" Connection to the RS-232C port of the host computer (master) Connection to the RS-485 port of the controller (slave) A RS-232C/RS-485 converter is required. #" Communication terminal number and signal details Terminal No. Signal name Symbol Signal ground Send data/Receive data T/R (A) Send data/Receive data...
  • Page 13 3. WIRING Continued from the previous page. When the host computer (master) uses Windows 95/98/NT, use a RS-232C/RS-485 converter with an automatic send/receive transfer function. Recommended: CD485, CD485/V manufactured by Data Link, Inc. or equivalent. The cable is provided by the customer. Connection to the RS-232C port of the controller (slave) Communication terminal number and signal details #"...

  • Page 14: Connect The Communication 2

    3. WIRING 3.2 Connect the Communication 2 !" Connection to the RS-422A port of the host computer (master) Communication terminal number and signal details #" Terminal No. Signal name Symbol Signal ground Send data T (A) Send data T (B) Receive data R (A) Receive data...
  • Page 15 3. WIRING !" Connection to the RS-485 port of the host computer (master) Communication terminal number and signal details #" Terminal No. Signal name Symbol Signal ground Send data/Receive data T/R (A) Send data/Receive data T/R (B) Wiring method #" Paired wire Controller (Slave) RS-485...
  • Page 16 3. WIRING !" Connection to the RS-232C port of the host computer (master) Connection to the RS-485 port of the controller (slave) A RS-232C/RS-485 converter is required. Communication terminal number and signal details #" Terminal No. Signal name Symbol Signal ground Send data/Receive data T/R (A) Send data/Receive data...
  • Page 17 3. WIRING Continued from the previous page. When the host computer (master) uses Windows 95/98/NT, use a RS-232C/RS-485 converter with an automatic send/receive transfer function. Recommended: CD485, CD485/V manufactured by Data Link, Inc. or equivalent. The cable is provided by the customer. Connection to the RS-232C port of the controller (slave) Communication terminal number and signal details !"...
  • Page 18 3. WIRING #" Wiring example Connection with up to 31 controller (slaves) and one host computer (master) Host computer (Master) RS-485 RS-422A (possible to use only when the communication 2 is selected) Junction terminals Device address (Slave address) Controller Controller (Slave) (Slave) IMR01N03-E1...

  • Page 19: Setting

    4. SETTING To establish communication parameters between host computer (master) and controller (slave), it is necessary to set the device address (slave address), communication speed, data bit configuration and interval time on each controller (slave) in the setup setting mode. Power ON Input Type/Input Range Display (Display for approx.

  • Page 20: Transfer To Setup Setting Mode

    When let setup setting mode finish, press and hold the SET key and press the shift key at the same time. The display changes to the SV setting & monitor mode. HA900/HA901 is used in the above figures for explanation, but the same setting procedures also apply to HA400/HA401. IMR01N03-E1...

  • Page 21: Setting The Communication Parameters

    4. SETTING 4.2 Setting the Communication Parameters This item describes when the communication 1 and communication 2 is used under the two input specification. To select parameters in setup setting mode, press the SET key. The parameters relating to communication is shown below. •...
  • Page 22 4. SETTING #" Setting procedure Setting procedures vary depending on the communication parameter. • Device address, Add$, interval time, InT$ ($: 1,2) Operate UP, DOWN and shift key, and input numerals. • Communication speed, bPS$, data bit configuration, bIT$ ($: 1,2) Operate UP or DOWN key, and choose one among the displayed set value.
  • Page 23 4. SETTING !" Description of each parameters #" Communication 1 Factory Symbol Name Setting range Description set value Device address 1 0 to 99 Set it not to duplication in (Slave address 1) multi-drop connection. (Add1) If the slave address is set to 0 in Modbus, two-way communication cannot be performed.
  • Page 24 4. SETTING Data bit configuration table Set value Data bit Parity bit Stop bit Without (8n1) Without (8n2) Even (8E1) Setting range Even (8E2) of Modbus (8o1) (8o2) Setting range of RKC communication Without (7n1) Without (7n2) Even (7E1) Even (7E2) (7o1) (7o2)
  • Page 25 !" Setting procedure example HA900/HA901 is used in the below figures for explanation, but the same setting procedures also apply to HA400/HA401. 1. Go to the setup setting mode so that device address 1 (slave address 1), Add1, is displayed.
  • Page 26 4. SETTING 4. Press the UP key to enter 1 at the tens digit. MODE 5. Press the SET key to set the value thus set. The display changes to the next communication parameter. It the SET key is not pressed within 1 minute, the present display returns to the SV setting &...

  • Page 27: Communication Requirements

    4. SETTING 4.3 Communication Requirements !" Processing times during data send/receive The controller requires the following processing times during data send/receive. Whether the host computer is using either the polling or selecting procedure for communication, the following processing times are required for controller to send data: -Response wait time after controller sends BCC in polling procedure -Response wait time after controller sends ACK or NAK in selecting procedure RKC communication (Polling procedure)
  • Page 28 4. SETTING !" RS-485 (2-wire system) send/receive timing The sending and receiving of RS-485 communication is conducted through two wires; consequently, the transmission and reception of data requires precise timing. Typical polling and selecting procedures between the host computer and the controller are described below: #"...

  • Page 29: Rkc Communication

    5. RKC COMMUNICATION The HA400/HA900/HA401/HA901 (hereafter, called controller) uses the polling/selecting method to establish a data link. The basic procedure is followed ANSI X3.28 subcategory 2.5, A4 basic mode data transmission control procedure (Fast selecting is the selecting method used in this controller).

  • Page 30: Polling Procedures

    5. RKC COMMUNICATION 5.1.1 Polling procedures (1) Data link initialization Host computer sends EOT to the controllers to initiate data link before polling sequence. (2) Data sent from host computer - Polling sequence The host computer sends the polling sequence in the following two types of formats: •...
  • Page 31 5. RKC COMMUNICATION Continued from the previous page. Memory area number (3 digits) This is the identifier to specify the memory area number. It is expressed by “K01” to “K16” to each memory area number (from 1 to 16). When one column of memory area number (1 to 9) is specified, it can be specified with “K1”...
  • Page 32 5. RKC COMMUNICATION Continued from the previous page. 3. Data (7 digits) Data which is indicated by an identifier of the controller, consisting of channel numbers, data, etc. It is expressed in decimal ASCII code including a minus sign (-) and a decimal point. Data is not zero-suppressed.
  • Page 33 5. RKC COMMUNICATION (6) ACK (Acknowledgment) An acknowledgment ACK is sent by the host computer when data received is correct. When the controller receives ACK from the host computer, the controller will send any remaining data of the next identifier without additional action from the host computer. For the identifier, see 5.4 Communication Items list (P.

  • Page 34: Polling Procedure Example

    5. RKC COMMUNICATION 5.1.2 Polling procedure example (1) When the monitored items is polled [Example: measured value (PV1) monitor M1] !" Normal transmission Host computer send Host computer send Host computer send 0 M 1 Address Identifier Identifier Data Identifier Data Controller send Controller send...

  • Page 35: Selecting

    5. RKC COMMUNICATION 5.2 Selecting Selecting is the action where the host computer requests one of the connected controllers to receive data. An example of the selecting procedure is shown below: Host computer Controller send Host computer send send No response [Address] ] [Data] [BCC]...
  • Page 36 5. RKC COMMUNICATION (3) Data sent from the host computer The host computer sends data for the selecting sequence with the following format: When no memory area number is specified !" Identifier Data When the memory area number is specified !"...
  • Page 37 5. RKC COMMUNICATION #" About numerical data The data that receipt of letter is possible • Data with numbers below the decimal point omitted or zero-suppressed data can be received. (Number of digits: Within 7 digits) <Example> When data send with −001.5, −01.5, −1.5, −1.50, −1.500 at the time of −1.5, controller can receive a data.
  • Page 38 5. RKC COMMUNICATION (5) NAK (Negative acknowledge) If the controller does not receive correct data from the host computer, it sends a negative acknowledgment NAK to the host computer. Corrections, such as re-send, must be made at the host computer. The controller will send NAK in the following cases: •...

  • Page 39: Selecting Procedure Example

    5. RKC COMMUNICATION 5.2.2 Selecting procedure example (1) When the items corresponding to the control area is selected [Example: set value (SV1) S1] !" Normal transmission Host computer send Host computer send Host computer send Address Identifier Data Identifier Data Controller send Controller send !"...

  • Page 40: Examples Of Polling And Selecting Check Programs

    5. RKC COMMUNICATION 5.3 Examples of Polling and Selecting Check Programs The following is the sample program for NEC PC-9800 series computers in BASIC language for carrying out polling and selecting checking by RS-232C specification. There will be some differences in the computer languages according to the type of computer.
  • Page 41 5. RKC COMMUNICATION Continued from the previous page. 1320 ' 1330 DT$=DT$+K$ 1340 GOTO *J10 1350 ' 1360 *ETXRX 1370 DT$=DT$+K$ 1380 BCCRX$=INPUT$(1,#1) 1390 BCCRX=ASC(BCCRX$) BCC checking 1400 GOSUB *BCCCH 1410 IF BCC<>BCCRX THEN GOSUB *NAKTX 1420 IF BCC<>BCCRX THEN GOSUB *RXDT: GOTO *J10 1430 ' 1440 PRINT "Data has been correctly received"...

  • Page 42: Example Of Temperature Set Values Selecting Checking Program

    5. RKC COMMUNICATION 5.3.2 Example of temperature set values selecting checking program 1000 '-------------------- Identifier setting ---------------------- 1010 ID$="S1" Identifier setting 1020 ' 1030 '------------------- Communications initial setting ------------------- 1040 CM$="N81NN" Communications data configuration setting 1050 STX$=CHR$(&H2) : EOT$=CHR$(&H4) : ENQ$=CHR$(&H5) Communications character setting 1060 ACK$=CHR$(&H6) : NAK$=CHR$(&H15): ETX$=CHR$(&H3) 1070 OPEN "COM1:"+CM$ AS #1...
  • Page 43 5. RKC COMMUNICATION Continued from the previous page. 1360 '--------------------- Sub-routine ---------------------- 1370 ' 1380 *RXDT' 1390 DT$="" Clearing of circuit buffer 1400 RETURN 1410 ' 1420 *TEXT 1430 PRINT #1,DT$; 1440 RETURN Transfer of selection data 1450 ' 1460 *BCCCH BCC calculation 1470 FOR II=1 TO LEN(DT$)

  • Page 44: Communication Items List

    5. RKC COMMUNICATION 5.4 Communication Items List RO: Read only R/W: Read and Write Refer- Factory Iden- Attri- ence Name Data range tifier bute page value  Model codes Model character codes P. 100  Input 1_ Input 1_input scale low to P.
  • Page 45 5. RKC COMMUNICATION Continued from the previous page. Refer- Factory Iden- Attri- ence Name Data range tifier bute page value  Heater break 0: OFF P. 104 alarm 1 (HBA1) state 1: ON  Heater break 0: OFF P. 104 alarm 2 (HBA2) state 1: ON −5.0 to +105.0 %...
  • Page 46 5. RKC COMMUNICATION Continued from the previous page. Refer- Factory Iden- Attri- ence Name Data range tifier bute page value  Operation mode state Least significant digit: P. 107 1: Control STOP 2nd digit: 1: Control RUN 3rd digit: 1: Input 1_Manual mode (Including Input 1_Remote mode) 4th digit: 1: Input 2_Manual mode...
  • Page 47 5. RKC COMMUNICATION Continued from the previous page. Refer- Factory Iden- Attri- ence Name Data range tifier bute page value Event 3 set value Deviation: 50.0 P. 112 −Input span to +input span Process/SV: Input scale low to input scale high Control loop break 0: OFF (Not provided) P.
  • Page 48 5. RKC COMMUNICATION Continued from the previous page. Refer- Factory Iden- Attri- ence Name Data range tifier bute page value Input 2_proportional TC/RTD input: 30.0 P. 116 band 0 to input span Voltage/current input: 0.0 to 1000.0 % of input span Input 2_integral time 0.0 to 3600.0 seconds or 240.00...
  • Page 49 3rd digit: Lock only set value (SV). 0: Settable, 1: Not settable (Lock) 4th digit to Most significant digit: Unused Note1 HA400/HA900: 0.00 HA401/HA901: 1.00 Note2 Relay contact output: 20.0 sec Other outputs: 2.0 sec Continued on the next page.
  • Page 50 5. RKC COMMUNICATION Continued from the previous page. Refer- Factory Iden- Attri- ence Name Data range tifier bute page value  EEPROM storage state 0: The content of the EEPROM does P. 129 not coincide with that of the RAM. 1: The content of the EEPROM coincides with that of the RAM.
  • Page 51 5. RKC COMMUNICATION Continued from the previous page. Refer- Factory Iden- Attri- ence Name Data range tifier bute page value Input 1_input type TC input Depend P. 134 selection on model −200 to +1372 °C code −328.0 to 2501.6 °F −200 to +1200 °C −328.0 to 2192.0 °F When not...
  • Page 52 5. RKC COMMUNICATION Continued from the previous page. Refer- Factory Iden- Attri- ence Name Data range tifier bute page value Input 1_decimal point R/W 0: No digit below decimal point P. 136 position 1: 1 digit below decimal point 2: 2 digits below decimal point 3: 3 digits below decimal point 4: 4 digits below decimal point Input 1_input scale high...
  • Page 53 5. RKC COMMUNICATION Continued from the previous page. Refer- Factory Iden- Attri- ence Name Data range tifier bute page value Input 2_ input type TC input Depend P. 134 selection on model −200 to +1372 °C code −328.0 to 2501.6 °F −200 to +1200 °C −328.0 to 2192.0 °F When not...
  • Page 54 5. RKC COMMUNICATION Continued from the previous page. Refer- Factory Iden- Attri- ence Name Data range tifier bute page value Input 2_decimal point R/W 0: No digit below decimal point P. 136 position 1: 1 digit below decimal point 2: 2 digits below decimal point 3: 3 digits below decimal point 4: 4 digits below decimal point Input 2_input scale high...
  • Page 55 5. RKC COMMUNICATION Continued from the previous page. Refer- Factory Iden- Attri- ence Name Data range tifier bute page value 104 Output 4 timer setting 0.0 to 600.0 seconds P. 146 105 Output 5 timer setting 0.0 to 600.0 seconds P.
  • Page 56 5. RKC COMMUNICATION Continued from the previous page. Refer- Factory Iden- Attri- ence Name Data range tifier bute page value 110 Transmission output 2_ Measured value (PV) and Note1 P. 149 scale high set value (SV): Input scale low to input scale high Manipulated output value (MV): −5.0 to +105.0 %...
  • Page 57 5. RKC COMMUNICATION Continued from the previous page. Refer- Factory Iden- Attri- ence Name Data range tifier bute page value 114 Transmission output 3_ Measured value (PV) and Note1 P. 150 scale low set value (SV): Input scale low to input scale high Manipulated output value (MV): −5.0 to +105.0 %...
  • Page 58 5. RKC COMMUNICATION Continued from the previous page. Refer- Factory Iden- Attri- ence Name Data range tifier bute page value 124 Event 2 assignment 1: For input 1 P. 160 2: For input 2 125 Event 3 type selection 0: None P.
  • Page 59 5. RKC COMMUNICATION Continued from the previous page. Refer- Factory Iden- Attri- ence Name Data range tifier bute page value 136 CT1 assignment 0: None 3: OUT3 Note1 P. 162 1: OUT1 4: OUT4 2: OUT2 5: OUT5 137 CT2 ratio 0 to 9999 Depend P.
  • Page 60 5. RKC COMMUNICATION Continued from the previous page. Refer- Factory Iden- Attri- ence Name Data range tifier bute page value 150 Input 1_action at input 0: Normal control (present output) P. 173 error (low limit) 1: Manipulated output value at input error −5.0 to +105.0 % −5.0...
  • Page 61 1: During the Open-side adjusting 2: During the Close-side adjusting 180 Setting change rate 1 to 3600 seconds P. 186 limiter unit time Note1 Not provided: 0 Provided: 1 Note2 HA400/HA900: 0.10 HA401/HA901: 10.00 Continued on the next page. IMR01N03-E1...
  • Page 62 5. RKC COMMUNICATION Continued from the previous page. Refer- Factory Iden- Attri- ence Name Data range tifier bute page value 181 Soak time unit selection 0: 0 hour 00 minutes 00 second to P. 186 9 hours 59 minutes 59 seconds 2: 0 minutes 00.00 seconds to 9 minutes 59.99 seconds 182 Input 1_setting limiter...

  • Page 63: Modbus

    6. MODBUS The master controls communication between master and slave. A typical message consists of a request (query message) sent from the master followed by an answer (response message) from the slave. When master begins data transmission, a set of data is sent to the slave in a fixed sequence. When it is received, the slave decodes it, takes the necessary action, and returns data to the master.

  • Page 64: Function Code

    6. MODBUS 6.2 Function Code Function code contents Function code Function Contents (Hexadecimal) Measured value, control output value, current transformer input Read holding registers measured value, Event status, etc. Set value, PID constants, event set Preset single register value, etc. Diagnostics (loopback test) loopback test Set value, PID constants, event set...

  • Page 65: Slave Responses

    6. MODBUS 6.4 Slave Responses (1) Normal response • In the response message of the Read Holding Registers, the slave returns the read out data and the number of data items with the same slave address and function code as the query message. •...

  • Page 66: Calculating Crc-16

    6. MODBUS (3) No response The slave ignores the query message and does not respond when: • The slave address in the query message does not coincide with any slave address settings. • The CRC code of the master does not coincide with that of the slave. •...
  • Page 67 6. MODBUS !" The flow chart of CRC-16 START FFFFH → CRC Register CRC Register ⊕ next byte of the message → CRC Register 0 → n Shift CRC Register right 1 bit Carry flag is 1 CRC Register ⊕ A001H → CRC Register n + 1 →...
  • Page 68 6. MODBUS !" Example of a CRC calculation in the ‘C’ language This routine assumes that the data types ‘uint16’ and ‘uint8’ exists. Theses are unsigned 16-bit integer (usually an ‘unsigned short int’ for most compiler types) and unsigned 8-bit integer (unsigned char). ‘z_p’...

  • Page 69: Message Format

    6. MODBUS 6.6 Message Format 6.6.1 Read holding registers [03H] The query message specifies the starting register address and quantity of registers to be read. The contents of the holding registers are entered in the response message as data, divided into two parts: the high-order 8-bit and the low-order 8-bit, arranged in the order of the register numbers.

  • Page 70: Preset Single Register [06H]

    6. MODBUS 6.6.2 Preset single register [06H] The query message specifies data to be written into the designated holding register. The write data is arranged in the query message with high-order 8-bit first and low-order 8-bit next. Only R/W holding registers can be specified.

  • Page 71: Diagnostics (Loopback Test) [08H]

    6. MODBUS 6.6.3 Diagnostics (Loopback test) [08H] The master’s query message will be returned as the response message from the slave. This function checks the communication system between the master and slave (the controller). Example: Loopback test for slave address 1 Query message Slave address Function code...

  • Page 72: Preset Multiple Registers [10H]

    6. MODBUS 6.6.4 Preset multiple registers [10H] The query message specifies the starting register address and quantity of registers to be written. The write data is arranged in the query message with high-order 8-bit first and low-order 8-bit next. Only R/W holding registers can be specified. Example: Data is written into the two holding registers from 0048H to 0049H of slave address 1.

  • Page 73: Data Configuration

    6. MODBUS 6.7 Data Configuration 6.7.1 Data scale The numeric range of data used in Modbus protocol is 0000H to FFFFH. Only the set value within the setting range is effective. FFFFH represents −1. !" Data processing with decimal points The Modbus protocol does not recognize data with decimal points during communication.
  • Page 74 6. MODBUS #" Data with 2 digit below decimal point Input 1_PV digital filter Input 1_PV low input cut-off Input 2_PV digital filter Input 2_PV low input cut-off Input 1_AT differential gap time Input 2_AT differential gap time Example: When Input 1_PV digital filter is 0.55 second, 0.55 is processed as 55, 55 = 0037H Input 1_PV digital filter High...
  • Page 75 6. MODBUS #" Data whose decimal point’s presence and/or position depends on input range The position of the decimal point changes depending on the input range type because the Modbus protocol does not recognize data with decimal points during communication. [Type of decimal points position] Temperature input: No digit below decimal point, 1 digit below decimal point,...
  • Page 76 6. MODBUS #" Data without decimal points Model codes Output logic selection Input 1_burnout state Transmission output 1_type selection Input 2_burnout state Transmission output 2_type selection Feedback resistance input burnout state Transmission output 3_type selection Event 1 state Event 1 type selection Event 2 state Event 1 hold action Event 3 state...

  • Page 77: Caution For Handling Communication Data

    6. MODBUS 6.7.2 Caution for handling communication data • In this communication, the variable is handled as 4 bytes data. • In this communication, one variable use two register addresses (Address of high order word, Address of low order word). •...

  • Page 78: Data Map List

    6. MODBUS 6.8 Data Map List In this communication, the variable is handled as 4 bytes data. In this communication, one variable use two register addresses (Address of high order word, Address of low order word). Turn of high order word and low order word is handled as Motorola Semiconductor type approval (high order sequence of low order).
  • Page 79 6. MODBUS Continued from the previous page. Register address Factory Refer- Attri- Hexadecimal Decimal Data range Name ence bute High- Low- High- Low- value page order order order order 0: OFF  Input 1_burnout state 0012 0013 P. 102 1: ON 0: OFF ...
  • Page 80 6. MODBUS Continued from the previous page. Register address Factory Refer- Attri- Hexadecimal Decimal Data range Name ence bute High- Low- High- Low- value page order order order order  002A 002B RO 0 to 127 (Bit data) P. 106 Event input state b0: DI 1 state 0: Open, 1: Close...
  • Page 81 6. MODBUS Continued from the previous page. Register address Factory Refer- Attri- Hexadecimal Decimal Data range Name ence bute High- Low- High- Low- value page order order order order Input 2_PID/AT transfer 0032 0033 R/W 0: PID control P. 108 1: Autotuning (AT) Input 1_Auto/Manual 0034...
  • Page 82 6. MODBUS Continued from the previous page. Register address Factory Refer- Attri- Hexadecimal Decimal Data range Name ence bute High- Low- High- Low- value page order order order order Control loop break 004A 004B R/W 0: OFF (Not provided) P. 113 alarm 2 (LBA2) 1 to 7200 seconds LBA2 deadband...
  • Page 83 Input 1_proportional 007E 007F R/W 0.1 to 100.0 seconds cycle time Other outputs: Voltage pulse output and triac output Note1 HA400/HA900: 0.00 HA401/HA901: 1.00 Note2 Relay contact output: 20.0 sec Other outputs: 2.0 sec Continued on the next page. IMR01N03-E1...
  • Page 84 0: Settable, 1: Not settable (Lock) b2: Lock only set value (SV). 0: Settable, 1: Not settable (Lock) b3～b31: Unused Note1 HA400/HA900: 0.00 HA401/HA901: 1.00 Note2 Relay contact output: 20.0 sec Other outputs: 2.0 sec Continued on the next page. IMR01N03-E1...
  • Page 85 6. MODBUS Continued from the previous page. Register address Factory Refer- Attri- Hexadecimal Decimal Data range Name ence bute High- Low- High- Low- value page order order order order EEPROM storage state RO 0: The content of the  0090 0091 P.
  • Page 86 6. MODBUS Continued from the previous page. Register address Factory Refer- Attri- Hexadecimal Decimal Data range Name ence bute High- Low- High- Low- value page order order order order Bar graph resolution R/W 1 to 100 digit/dot 0204 0205 P. 132 setting ...
  • Page 87 6. MODBUS Continued from the previous page. Register address Factory Refer- Attri- Hexadecimal Decimal Data range Name ence bute High- Low- High- Low- value page order order order order Input 1_input type TC input 020E 020F P. 134 Depend selection 0: K −200 to +1372 °C on model −328.0 to 2501.6 °F...
  • Page 88 6. MODBUS Continued from the previous page. Register address Factory Refer- Attri- Hexadecimal Decimal Data range Name ence bute High- Low- High- Low- value page order order order order R/W 0: °C Input 1_display unit 0210 0211 P. 135 1: °F selection Input 1_decimal point R/W 0: No digit below...
  • Page 89 6. MODBUS Continued from the previous page. Register address Factory Refer- Attri- Hexadecimal Decimal Data range Name ence bute High- Low- High- Low- value page order order order order Input 1_ R/W 0: Upscale 021C 021D Note1 P. 140 burnout direction 1: Downscale Input 1_square root R/W 0: Not provided...
  • Page 90 6. MODBUS Continued from the previous page. Register address Factory Refer- Attri- Hexadecimal Decimal Data range Name ence bute High- Low- High- Low- value page order order order order Input 2_ input type TC input 0222 0223 P. 134 Depend selection 0: K −200 to +1372 °C on model...
  • Page 91 6. MODBUS Continued from the previous page. Register address Factory Refer- Attri- Hexadecimal Decimal Data range Name ence bute High- Low- High- Low- value page order order order order R/W 0: °C Input 2_ display unit 0224 0225 P. 135 1: °F selection Input 2_decimal point...
  • Page 92 6. MODBUS Continued from the previous page. Register address Factory Refer- Attri- Hexadecimal Decimal Data range Name ence bute High- Low- High- Low- value page order order order order Input 2_ R/W 0: Upscale 0230 0231 Note1 P. 140 burnout direction 1: Downscale Input 2_square root R/W 0: Not provided...
  • Page 93 6. MODBUS Continued from the previous page. Register address Factory Refer- Attri- Hexadecimal Decimal Data range Name ence bute High- Low- High- Low- value page order order order order Transmission output 1_ 0246 0247 R/W Measured value (PV) and Note1 P. 150 scale low set value (SV): Input scale low to...
  • Page 94 6. MODBUS Continued from the previous page. Register address Factory Refer- Attri- Hexadecimal Decimal Data range Name ence bute High- Low- High- Low- value page order order order order Transmission output 2_ 024C 024D R/W Measured value (PV) and Note1 P. 150 scale low set value (SV): Input scale low to...
  • Page 95 6. MODBUS Continued from the previous page. Register address Factory Refer- Attri- Hexadecimal Decimal Data range Name ence bute High- Low- High- Low- value page order order order order Transmission output 3_ 0252 0253 R/W Measured value (PV) and Note1 P. 150 scale low set value (SV): Input scale low to...
  • Page 96 6. MODBUS Continued from the previous page. Register address Factory Refer- Attri- Hexadecimal Decimal Data range Name ence bute High- Low- High- Low- value page order order order order Event 2 differential gap 0262 0263 R/W 0 to input span Note1 P.
  • Page 97 6. MODBUS Continued from the previous page. Register address Factory Refer- Attri- Hexadecimal Decimal Data range Name ence bute High- Low- High- Low- value page order order order order CT1 ratio 027C 027D R/W 0 to 9999 Depend P. 161 on model code CT1 assignment...
  • Page 98 6. MODBUS Continued from the previous page. Register address Factory Refer- Attri- Hexadecimal Decimal Data range Name ence bute High- Low- High- Low- value page order order order order Input 1_ 0290 0291 R/W 0: No digit below decimal P. 169 integral/derivative time point decimal point position...
  • Page 99 6. MODBUS Continued from the previous page. Register address Factory Refer- Attri- Hexadecimal Decimal Data range Name ence bute High- Low- High- Low- value page order order order order Input 2_ 02AA 02AB R/W 0: No digit below decimal P. 169 integral/derivative time point decimal point position...
  • Page 100 9 minutes 59.99 seconds Input 1_setting limiter 02DA 02DB R/W Input 1_setting limiter Input 1_ P. 187 (high limit) (low limit) to input 1_ input input scale high scale high Note1 HA400/HA900: 0.10 HA401/HA901: 10.00 Continued on the next page. IMR01N03-E1...
  • Page 101 6. MODBUS Continued from the previous page. Register address Factory Refer- Attri- Hexadecimal Decimal Data range Name ence bute High- Low- High- Low- value page order order order order Input 1_setting limiter 02DC 02DD R/W Input 1_input scale low to Input 1_ P.
  • Page 102 6. MODBUS Items relating to the memory area other than the control area Register address Factory Refer- Attri- Hexadecimal Decimal Data range Name ence bute High- Low- High- Low- value page order order order order Memory area selection 0500 0501 1280 1281 R/W 1 to 16 P.
  • Page 103 6. MODBUS Continued from the previous page. Register address Factory Refer- Attri- Hexadecimal Decimal Data range Name ence bute High- Low- High- Low- value page order order order order 0516 0517 1302 1303 R/W 0.0 to 3600.0 seconds or 240.00 P. 195 Input 1_integral time 0.00 to 360.00 seconds (0.0 or 0.00: PD action)
  • Page 104 6. MODBUS Continued from the previous page. Register address Factory Refer- Attri- Hexadecimal Decimal Data range Name ence bute High- Low- High- Low- value page order order order order 0532 0533 1330 1331 R/W 0 minute 00.00 second to 0.00.00 P. 197 Area soak time 9 minutes 59.99 seconds 0 hour 00 minute 00...

  • Page 105: Communication Data Description

    7. COMMUNICATION DATA DESCRIPTION "# Referance to communication data contents Input 1_ RKC communication measured value (PV1) monitor identifier MODBUS High order: 0000H (0) register address Low order: 0001H (1) Input 2_ RKC communication measured value (PV2) monitor identifier MODBUS High order: 0002H (2) register address Low order: 0003H (3)
  • Page 106 7. COMMUNICATION DATA DESCRIPTION RKC communication Model codes identifier MODBUS Absence register address This value is the type identifier code of the controller. It is the same content as a stuck imprint in side face of the case. Attribute: RO (Read only) Digits: 32 digits ...
  • Page 107 7. COMMUNICATION DATA DESCRIPTION RKC communication Current transformer identifier input value 1 (CT1) monitor MODBUS High order: 0006H (6) register address Low order: 0007H (7) RKC communication Current transformer identifier input value 2 (CT2) monitor MODBUS High order: 0008H (8) register address Low order: 0009H (9) This value is a current transformer input value that is used for heater break alarm function.
  • Page 108 7. COMMUNICATION DATA DESCRIPTION RKC communication Remote input value monitor identifier MODBUS High order: 000EH (14) register address Low order: 000FH (15) This value is an input value that is used for remote input function. Attribute: RO (Read only) Digits: 7 digits Data range: Input 1_setting limiter (low limit) to Input 1_setting limiter (high limit)
  • Page 109 7. COMMUNICATION DATA DESCRIPTION RKC communication Feedback resistance identifier input burnout state MODBUS High order: 0016H (22) register address Low order: 0017H (23) This value expresses a state in feedback resistance input break. Attribute: RO (Read only) Digits: 7 digits Data range: 0: OFF 1: ON...
  • Page 110 7. COMMUNICATION DATA DESCRIPTION RKC communication Heater break alarm 1 (HBA1) state identifier MODBUS High order: 0020H (32) register address Low order: 0021H (33) RKC communication Heater break alarm 2 (HBA2) state identifier MODBUS High order: 0022H (34) register address Low order: 0023H (35) This value expresses a state of the heater break alarm ON/OFF.
  • Page 111 7. COMMUNICATION DATA DESCRIPTION RKC communication Error codes identifier MODBUS High order: 0028H (40) register address Low order: 0029H (41) Each error state of the controller is expressed in bit data items. Attribute: RO (Read only) Digits: 7 digits Data range: 0 to 4095 (bit data) The error state is assigned as a bit image in binary numbers.
  • Page 112 7. COMMUNICATION DATA DESCRIPTION RKC communication Event input state identifier MODBUS High order: 002AH (42) register address Low order: 002BH (43) Each event input state of the controller is expressed in bit data items. Attribute: RO (Read only) Digits: 7 digits Data range: RKC communication: ASCII code data of 7 digits The event input state is assigned as a digit image in ASCII code data of 7 digits.
  • Page 113 7. COMMUNICATION DATA DESCRIPTION RKC communication Operation mode state identifier MODBUS High order: 002CH (44) register address Low order: 002DH (45) Each operation mode state of the controller is expressed in bit data items. Attribute: RO (Read only) Digits: 7 digits Data range: RKC communication: ASCII code data of 7 digits The operation mode state is assigned as a digit image in ASCII code data of 7...
  • Page 114 7. COMMUNICATION DATA DESCRIPTION RKC communication Memory area soak time monitor identifier MODBUS High order: 002EH (46) register address Low order: 002FH (47) This value expresses memory area soak time to use in case of simple program operation (see P. 109) that used memory area.
  • Page 115 7. COMMUNICATION DATA DESCRIPTION Continued from the previous page. The autotuning start: Start the autotuning when all following conditions are satisfied: • Operation mode conditions: − Auto/Manual transfer → Auto mode − Remote/Local transfer → Local mode − PID/AT transfer →...
  • Page 116 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_Auto/Manual transfer identifier MODBUS High order: 0034H (52) register address Low order: 0035H (53) RKC communication Input 2_Auto/Manual transfer identifier MODBUS High order: 0036H (54) register address Low order: 0037H (55) This item transfers the automatic (AUTO) control and the manual (MAN) control. Attribute: R/W (Read and Write) The Input 2_Auto/Manual transfer (J0) becomes RO (Read only) for the...
  • Page 117 7. COMMUNICATION DATA DESCRIPTION RKC communication Remote/Local transfer identifier MODBUS High order: 0038H (56) register address Low order: 0039H (57) This item selects to use the set value of local or remote input. Attribute: R/W (Read and Write) This item becomes RO (Read only) besides the remote input specification or the cascade control specification.
  • Page 118 7. COMMUNICATION DATA DESCRIPTION RKC communication Event 1 set value identifier MODBUS High order: 003EH (62) register address Low order: 003FH (63) RKC communication Event 2 set value identifier MODBUS High order: 0040H (64) register address Low order: 0041H (65) RKC communication Event 3 set value identifier...
  • Page 119 7. COMMUNICATION DATA DESCRIPTION RKC communication Control loop break alarm 1 (LBA1) identifier time MODBUS High order: 0044H (68) register address Low order: 0045H (69) RKC communication Control loop break alarm 2 (LBA2) identifier time MODBUS High order: 004AH (74) register address Low order: 004BH (75) The variation of measured value (PV) is monitored for each control loop break alarm (LBA) time.
  • Page 120 7. COMMUNICATION DATA DESCRIPTION !" Functional description Control loop break alarm (LBA) : The control loop break alarm (LBA) function is used to detect a load (heater) break or a failure in the external actuator (magnet relay, etc.), or a failure in the control loop caused by an input (sensor) break.
  • Page 121 7. COMMUNICATION DATA DESCRIPTION Continued from the previous page. The LBA function is not activated when any of the following cases occurs. • When the autotuning function is being executed. • When operation mode is not in Control mode. When the LBA setting time is extremely short or does not meet the controlled object, the LBA may be turned on and off, or may not be turned on.
  • Page 122 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_set value (SV1) identifier MODBUS High order: 004EH (78) register address Low order: 004FH (79) RKC communication Input 2_set value (SV2) identifier MODBUS High order: 005AH (90) register address Low order: 005BH (91) The set value (SV) is a desired value of the control.
  • Page 123 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_integral time identifier MODBUS High order: 0052H (82) register address Low order: 0053H (83) RKC communication Input 2_integral time identifier MODBUS High order: 005EH (94) register address Low order: 005FH (95) This value expresses a time of the integral action that eliminates the offset occurring in proportional control.
  • Page 124 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_control response parameter identifier MODBUS High order: 0056H (86) register address Low order: 0057H (87) RKC communication Input 2_control response parameter identifier MODBUS High order: 0062H (98) register address Low order: 0063H (99) This item is a response resulting from a set value (SV) change in PID control.
  • Page 125 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_ identifier setting change rate limiter (up) MODBUS High order: 0066H (102) register address Low order: 0067H (103) RKC communication Input 2_ identifier setting change rate limiter (up) MODBUS High order: 006AH (106) register address Low order: 006BH (107) This value expresses a set value of the setting change rate limiter up.
  • Page 126 7. COMMUNICATION DATA DESCRIPTION !" Functional description The setting change rate limiter is the function of setting amount of set value (SV) change per unit time when the set value (SV) is changed. Application example of setting change rate limiter: $"...
  • Page 127 7. COMMUNICATION DATA DESCRIPTION RKC communication Area soak time identifier MODBUS High order: 006EH (110) register address Low order: 006FH (111) This item uses the combination of the setting change rate limiter up/down and the link area number in case of simple program operation. (see P. 122) Attribute: R/W (Read and Write) Digits:...
  • Page 128 7. COMMUNICATION DATA DESCRIPTION RKC communication Link area number identifier MODBUS High order: 0070H (112) register address Low order: 0071H (113) This item uses the combination of the setting change rate limiter up/down and the area soak time in case of simple program operation. Attribute: R/W (Read and Write) Digits:...
  • Page 129 7. COMMUNICATION DATA DESCRIPTION RKC communication Heater break alarm 1 (HBA1) identifier set value MODBUS High order: 0072H (114) register address Low order: 0073H (115) RKC communication Heater break alarm 2 (HBA2) identifier set value MODBUS High order: 0074H (116) register address Low order: 0075H (117) HBA set value sets by referring to CT input measured value of current transformer.
  • Page 130 R/W (Read and Write) The Input 2_PV digital filter (F0) becomes RO (Read only) for the one input specification. Digits: 7 digits Data range: 0: OFF (Not provided) 0.01 to 10.00 seconds Factory set value: HA400/HA900: 0.00 HA401/HA901: 1.00 IMR01N03-E1...
  • Page 131 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_PV ratio identifier MODBUS High order: 007AH (122) register address Low order: 007BH (123) RKC communication Input 2_PV ratio identifier MODBUS High order: 0086H (134) register address Low order: 0087H (135) This item is the PV ratio (magnification) to add to measured value for sensor correction, etc. The PV bias is used to correct the individual variations in the sensors or when there is difference between the measured value (PV) of other instruments.
  • Page 132 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_PV low input cut-off identifier MODBUS High order: 007CH (124) register address Low order: 007DH (125) RKC communication Input 2_PV low input cut-off identifier MODBUS High order: 0088H (136) register address Low order: 0089H (137) As a result of square root extraction, low input value with large variation is cut.
  • Page 133 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_proportional cycle time identifier MODBUS High order: 007EH (126) register address Low order: 007FH (127) RKC communication Input 2_ proportional cycle time identifier MODBUS High order: 008AH (138) register address Low order: 008BH (139) This item is proportional cycle time of control output.
  • Page 134 7. COMMUNICATION DATA DESCRIPTION RKC communication Set lock level identifier MODBUS High order: 008EH (142) register address Low order: 008FH (143) Use this item when you need to restrict a setting change of the parameter to the operator, or to prevent the operator from doing misoperation during operation.
  • Page 135 7. COMMUNICATION DATA DESCRIPTION RKC communication EEPROM storage state identifier MODBUS High order: 0090H (144) register address Low order: 0091H (145) The contents of the RAM and those of the EEPROM can be checked. Attribute: RO (Read only) Digits: 7 digits Data range: 0: The content of the EEPROM does not coincide with that of the RAM.
  • Page 136 7. COMMUNICATION DATA DESCRIPTION Continued from the previous page. When selecting any EEPROM storage mode, take notice of the following. • If power failure occurs while “1: Not set values are store to the EEPROM when set values are changed” is selected, the set value returns to the value before the storage mode is selected.
  • Page 137 The bar graph displays the feedback resistance input value (POS). (Only in case of the position resistance input proportioning PID control) value (POS) [Display example] display * The number of dot points: 10 dots (for HA400/HA401) 20 dots (for HA900/HA901) IMR01N03-E1...
  • Page 138 7. COMMUNICATION DATA DESCRIPTION RKC communication Bar graph resolution setting identifier MODBUS High order: 0204H (516) register address Low order: 0205H (517) This item is the bar graph display resolution for the deviation display. However, this set value becomes valid only when the bar graph display selection is “4: Input 1_deviation value” or “9: Input 2_deviation value”.
  • Page 139 7. COMMUNICATION DATA DESCRIPTION RKC communication Remote/Local transfer key operation identifier selection (R/L) MODBUS High order: 020AH (522) register address Low order: 020BH (523) This item selects the Remote/Local transfer key (R/L) Used/Unused. Attribute: R/W (Read and Write) This item becomes RO (Read only) during control RUN. Digits: 7 digits Data range:...
  • Page 140 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_input type selection identifier MODBUS High order: 020EH (526) register address Low order: 020FH (527) RKC communication Input 2_ input type selection identifier MODBUS High order: 0222H (546) register address Low order: 0223H (547) This value indicates input type and input range.
  • Page 141 7. COMMUNICATION DATA DESCRIPTION Continued from the previous page. See the above input range table also when you select input type of the remote input. However, the remote input specification can not select 0 to13, 22, and 23. Factory set value: Depend on model code.
  • Page 142 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_decimal point position identifier MODBUS High order: 0212H (530) register address Low order: 0213H (531) RKC communication Input 2_decimal point position identifier MODBUS High order: 0226H (550) register address Low order: 0227H (551) This value indicates decimal point position of the input range.
  • Page 143 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_input scale high identifier MODBUS High order: 0214H (532) register address Low order: 0215H (533) RKC communication Input 2_input scale high identifier MODBUS High order: 0228H (552) register address Low order: 0229H (553) This value is high limit of the input scale range.
  • Page 144 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_input scale low identifier MODBUS High order: 0216H (534) register address Low order: 0217H (535) RKC communication Input 2_input scale low identifier MODBUS High order: 022AH (554) register address Low order: 022BH (555) This value is low limit of the input scale range.
  • Page 145 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_input error determination point identifier (high limit) MODBUS High order: 0218H (536) register address Low order: 0219H (537) RKC communication Input 2_input error determination point identifier (high limit) MODBUS High order: 022CH (556) register address Low order: 022DH (557) An action at input error is activated when input measured value (PV) becomes input error determination...
  • Page 146 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_input error determination point identifier (low limit) MODBUS High order: 021AH (538) register address Low order: 021BH (539) RKC communication Input 2_input error determination point identifier (low limit) MODBUS High order: 022EH (558) register address Low order: 022FH (559) An action at input error is activated when input measured value (PV) becomes input error determination...
  • Page 147 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_square root extraction identifier selection MODBUS High order: 021EH (542) register address Low order: 021FH (543) RKC communication Input 2_square root extraction identifier selection MODBUS High order: 0232H (562) register address Low order: 0233H (563) This item selects the presence or absence of the square root extraction for measured value.
  • Page 148 7. COMMUNICATION DATA DESCRIPTION RKC communication Event input logic selection identifier MODBUS High order: 0234H (564) register address Low order: 0235H (565) This item is an item that assigns the function (memory area, operation mode) for the event input (DI 1 to DI 7).
  • Page 149 7. COMMUNICATION DATA DESCRIPTION Continued from the previous page. Relationship between contact status of operation mode and mode status "# No event input or Contact closed Contact open not selected RUN/STOP transfer RUN (Control RUN) STOP (Control STOP) RUN (Control RUN) Auto/Manual transfer Auto Manual...
  • Page 150 7. COMMUNICATION DATA DESCRIPTION RKC communication Output logic selection identifier MODBUS High order: 0236H (566) register address Low order: 0237H (567) This item is an item that assigns the output function (control output, event, etc.) for the output (OUT1 to OUT5). Attribute: R/W (Read and Write) This item becomes RO (Read only) during control RUN.
  • Page 151 7. COMMUNICATION DATA DESCRIPTION Continued from the previous page. An output point becomes OR output when two or more output function is assigned to it. When the output function can use the transmission output (3 points), the transmission output is automatically assigned from out 1 to out 3 (see the following table). As the transmission output is given priority over the output function that is assigned the output logic selection, the manipulated output value (MV) that is assigned the output logic selection cannot output.
  • Page 152 7. COMMUNICATION DATA DESCRIPTION RKC communication Output 1 timer setting identifier MODBUS High order: 0238H (568) register address Low order: 0239H (569) RKC communication Output 2 timer setting identifier MODBUS High order: 023AH (570) register address Low order: 023BH (571) RKC communication Output 3 timer setting identifier...
  • Page 153 7. COMMUNICATION DATA DESCRIPTION Continued from the previous page. Example: When set the event timer for 100.0 seconds. Measured value (PV) Event set value Set value (SV) Event output Event timer Event timer setting time setting time (100.0 seconds) (100.0 seconds) Event state Event state IMR01N03-E1...
  • Page 154 7. COMMUNICATION DATA DESCRIPTION RKC communication Transmission output 1_ identifier type selection MODBUS High order: 0242H (578) register address Low order: 0243H (579) RKC communication Transmission output 2_ identifier type selection MODBUS High order: 0248H (584) register address Low order: 0249H (585) RKC communication Transmission output 3_ identifier...
  • Page 155 7. COMMUNICATION DATA DESCRIPTION RKC communication Transmission output 1_scale high identifier MODBUS High order: 0244H (580) register address Low order: 0245H (581) RKC communication Transmission output 2_scale high identifier MODBUS High order: 024AH (586) register address Low order: 024BH (587) RKC communication Transmission output 3_scale high identifier...
  • Page 156 7. COMMUNICATION DATA DESCRIPTION RKC communication Transmission output 1_scale low identifier MODBUS High order: 0246H (582) register address Low order: 0247H (583) RKC communication Transmission output 2_scale low identifier MODBUS High order: 024CH (588) register address Low order: 024DH (589) RKC communication Transmission output 3_scale low identifier...
  • Page 157 7. COMMUNICATION DATA DESCRIPTION RKC communication Event 1 type selection identifier MODBUS High order: 0254H (596) register address Low order: 0255H (597) RKC communication Event 2 type selection identifier MODBUS High order: 025EH (606) register address Low order: 025FH (607) RKC communication Event 3 type selection identifier...
  • Page 158 7. COMMUNICATION DATA DESCRIPTION Continued from the previous page. "# Event action type : Set value (SV) : Event set value) Deviation high: *(Event state where the event set value is set to minus) *(Event state where the event set value is set to plus) High High Deviation low:...
  • Page 159 7. COMMUNICATION DATA DESCRIPTION Continued from the previous page. The LBA function detects an error occurring in the control loop, but cannot specify the erroneous location. Therefore, check the control loop in order. The LBA output is turned off when any of the following cases occurs with the LBA output turned on.
  • Page 160 7. COMMUNICATION DATA DESCRIPTION RKC communication Event 1 hold action identifier MODBUS High order: 0256H (598) register address Low order: 0257H (599) RKC communication Event 2 hold action identifier MODBUS High order: 0260H (608) register address Low order: 0261H (609) RKC communication Event 3 hold action identifier...
  • Page 161 7. COMMUNICATION DATA DESCRIPTION Continued from the previous page. "# Hold action In the event hold action, the event action is kept invalid even if the measured value (PV) is in the event range when the power is on or the operation mode is switched to RUN from STOP. The event action is held until the measured value (PV) goes out of the event state once.
  • Page 162 7. COMMUNICATION DATA DESCRIPTION RKC communication Event 1 differential gap identifier MODBUS High order: 0258H (600) register address Low order: 0259H (601) RKC communication Event 2 differential gap identifier MODBUS High order: 0262H (610) register address Low order: 0263H (611) RKC communication Event 3 differential gap identifier...
  • Page 163 7. COMMUNICATION DATA DESCRIPTION Continued from the previous page. [Event high] Measured value (PV) Measured value (PV) Event set value Differential gap Time Time Event status [Event low] Measured value (PV) Measured value (PV) Differential gap Event set value Time Event status IMR01N03-E1...
  • Page 164 7. COMMUNICATION DATA DESCRIPTION RKC communication Event 1 action at input error identifier MODBUS High order: 025AH (602) register address Low order: 025BH (603) RKC communication Event 2 action at input error identifier MODBUS High order: 0264H (612) register address Low order: 0265H (613) RKC communication Event 3 action at input error...
  • Page 165 7. COMMUNICATION DATA DESCRIPTION Continued from the previous page. Functional description: An example of the following explains input error determination point and action at input error. 0 to 400 °C Example: Input range: 300 °C Input error determination point (high limit): 50 °C Input error determination point (low limit): Differential gap...
  • Page 166 7. COMMUNICATION DATA DESCRIPTION RKC communication Event 1 assignment identifier MODBUS High order: 025CH (604) register address Low order: 025DH (605) RKC communication Event 2 assignment identifier MODBUS High order: 0266H (614) register address Low order: 0267H (615) RKC communication Event 3 assignment identifier MODBUS...
  • Page 167 7. COMMUNICATION DATA DESCRIPTION RKC communication CT1 ratio identifier MODBUS High order: 027CH (636) register address Low order: 027DH (637) RKC communication CT2 ratio identifier MODBUS High order: 0280H (640) register address Low order: 0281H (641) This item sets the number of turns (ratio) of the current transformer that is used with the heater break alarm (HBA).
  • Page 168 7. COMMUNICATION DATA DESCRIPTION RKC communication CT1 assignment identifier MODBUS High order: 027EH (638) register address Low order: 027FH (639) RKC communication CT2 assignment identifier MODBUS High order: 0282H (642) register address Low order: 0283H (643) This item assigns an output that a decision of the heater break alarm (HBA) intends for. Attribute: R/W (Read and Write) This item becomes RO (Read only) during control RUN.
  • Page 169 7. COMMUNICATION DATA DESCRIPTION RKC communication Hot/Cold start selection identifier MODBUS High order: 0284H (644) register address Low order: 0285H (645) This item selects the start mode at power recovery. Attribute: R/W (Read and Write) This item becomes RO (Read only) during control RUN. Digits: 7 digits Data range:...
  • Page 170 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 2_use selection identifier MODBUS High order: 0286H (646) register address Low order: 0287H (647) Among the single loop control, remote setting input, cascade control (slave), this item selects which application the input 2 is used by. Attribute: R/W (Read and Write) This item becomes RO (Read only) during control RUN.
  • Page 171 7. COMMUNICATION DATA DESCRIPTION RKC communication Cascade ratio identifier MODBUS High order: 0288H (648) register address Low order: 0289H (649) This value is the ratio when the manipulated output (%) in the cascade master is converted to the relevant cascade signal (°C). Attribute: R/W (Read and Write) This item becomes RO (Read only) during control RUN.
  • Page 172 7. COMMUNICATION DATA DESCRIPTION Continued from the previous page. Example: Relationship between the manipulated output (%) in the cascade master and relevant cascade signal (°C) Output scale in the input 1 (master): 0 to 100 % −100 to +400 °C Input scale in the input 2: Manipulated output in the input 1 (master) = 100 %...
  • Page 173 7. COMMUNICATION DATA DESCRIPTION RKC communication SV tracking identifier MODBUS High order: 028CH (652) register address Low order: 028DH (653) This item is a function that can select whether a local setting value is followed or not in a remote setting value just before the operation mode is transferred to when the operation mode is transferred to the local setting mode from the remote setting mode.
  • Page 174 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_control action type selection identifier MODBUS High order: 028EH (654) register address Low order: 028FH (655) RKC communication Input 2_control action type selection identifier MODBUS High order: 02A8H (680) register address Low order: 02A9H (681) This item selects direct action/reverse action.
  • Page 175 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_integral/derivative time identifier decimal point position selection MODBUS High order: 0290H (656) register address Low order: 0291H (657) RKC communication Input 2_integral/derivative time identifier decimal point position selection MODBUS High order: 02AAH (682) register address Low order: 02ABH (683) This item selects a decimal point position of integral time and derivative time in PID control.
  • Page 176 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_derivative gain identifier MODBUS High order: 0292H (658) register address Low order: 0293H (659) RKC communication Input 2_derivative gain identifier MODBUS High order: 02ACH (684) register address Low order: 02ADH (685) This item is a gain used for derivative action in PID control. It adjusts a worked condition by derivative action.
  • Page 177 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_ON/OFF action differential identifier gap (lower) MODBUS High order: 0296H (662) register address Low order: 0297H (663) RKC communication Input 2_ON/OFF action differential identifier gap (lower) MODBUS High order: 02B0H (688) register address Low order: 02B1H (689) This item sets the ON/OFF control differential gap (lower).
  • Page 178 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_ identifier action at input error (high limit) MODBUS High order: 0298H (664) register address Low order: 0299H (665) RKC communication Input 2_ identifier action at input error (high limit) MODBUS High order: 02B2H (690) register address Low order: 02B3H (691) This item selects the action when input measured value becomes the input error determination point...
  • Page 179 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_action at input error (low limit) identifier MODBUS High order: 029AH (666) register address Low order: 029BH (667) RKC communication Input 2_action at input error (low limit) identifier MODBUS High order: 02B4H (692) register address Low order: 02B5H (693) This item selects the action when input measured value becomes the input error determination point...
  • Page 180 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_output change rate limiter (up) identifier MODBUS High order: 029EH (670) register address Low order: 029FH (671) RKC communication Input 2_output change rate limiter (up) identifier MODBUS High order: 02B8H (696) register address Low order: 02B9H (697) The output change rate limiter (upward side) to limit of the variation of output is set.
  • Page 181 7. COMMUNICATION DATA DESCRIPTION Continued from the previous page. Functional description: The output change rate limiter limits the variation of manipulated output (MV) for a time unit. You can set an output variation, and control the output, when your object requires to avoid sudden variation.
  • Page 182 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_output limiter (high limit) identifier MODBUS High order: 02A2H (674) register address Low order: 02A3H (675) RKC communication Input 2_output limiter (high limit) identifier MODBUS High order: 02BCH (700) register address Low order: 02BDH (701) This item is the high limit value of manipulated output.
  • Page 183 The power feed forward function is used to stabilize the control point by monitoring the load voltage by the power feed transformer. If the power feed input voltage becomes less than approx. −30 % of the rated value, control automatically stops. HA400/401 HA900/901 Sensor input Power feed input...
  • Page 184 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_AT bias identifier MODBUS High order: 02C2H (706) register address Low order: 02C3H (707) RKC communication Input 2_AT bias identifier MODBUS High order: 02C8H (712) register address Low order: 02C9H (713) This item is for setting the desired bias to move the AT point when the autotuning (AT) function is activated.
  • Page 185 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_AT cycle identifier MODBUS High order: 02C4H (708) register address Low order: 02C5H (709) RKC communication Input 2_AT cycle identifier MODBUS High order: 02CAH (714) register address Low order: 02CBH (715) This value is the number of ON/OFF cycle when the autotuning (AT) function is activated. Attribute: R/W (Read and Write) This item becomes RO (Read only) during control RUN.
  • Page 186 R/W (Read and Write) This item becomes RO (Read only) during control RUN. Digits: 7 digits Data range: 0.00 to 50.00 seconds Factory set value: HA400/HA900: 0.10 HA401/HA901: 10.00 Relational items: PID/AT transfer (P. 108) Functional description: In order to prevent the output from chattering due to the fluctuation of a measured value (PV) caused by noise when the autotuning (AT) function is activated, the output on or off state is held until “AT differential gap time”...
  • Page 187 7. COMMUNICATION DATA DESCRIPTION Continued from the previous page. Example: A: AT cycle time at an AT differential gap time of 0.00 second If the output chatters due to the fluctuation of a measured value (PV) caused by noise, the AT function is likely to be terminated halfway.
  • Page 188 7. COMMUNICATION DATA DESCRIPTION RKC communication Open/Close output neutral zone identifier MODBUS High order: 02CEH (718) register address Low order: 02CFH (719) This item is an area where the output between open-side and close-side outputs is turned off used in the position proportioning PID control.
  • Page 189 7. COMMUNICATION DATA DESCRIPTION RKC communication Open/Close output differential gap identifier MODBUS High order: 02D0H (720) register address Low order: 02D1H (721) This item is a differential gap of Open/Close output used in the position proportioning PID control. Attribute: R/W (Read and Write) This item becomes RO (Read only) during control RUN.
  • Page 190 7. COMMUNICATION DATA DESCRIPTION RKC communication Action at feedback resistance (FBR) identifier input error MODBUS High order: 02D2H (722) register address Low order: 02D3H (723) This item selects an action at the feedback resistance (FBR) input break. Attribute: R/W (Read and Write) This item becomes RO (Read only) during control RUN.
  • Page 191 7. COMMUNICATION DATA DESCRIPTION RKC communication Feedback adjustment identifier MODBUS High order: 02D4H (724) register address Low order: 02D5H (725) This item conducts an automatic adjustment of the control motor that is used for the position proportioning PID control. This adjustment matches a valve opening signal (feedback resistance input: total closing to full admission) from the control motor with the manipulated variable range (0 to 100 %) of the PID computation result.
  • Page 192 7. COMMUNICATION DATA DESCRIPTION RKC communication Setting change rate limiter unit time identifier MODBUS High order: 02D6H (726) register address Low order: 02D7H (727) This item sets a unit time used with the setting change rate limiter (up/down). Attribute: R/W (Read and Write) This item becomes RO (Read only) during control RUN.
  • Page 193 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_setting limiter (high limit) identifier MODBUS High order: 02DAH (730) register address Low order: 02DBH (731) RKC communication Input 2_setting limiter (high limit) identifier MODBUS High order: 02DEH (734) register address Low order: 02DFH (735) This value is a high limit of the setting range.
  • Page 194 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_setting limiter (low limit) identifier MODBUS High order: 02DCH (732) register address Low order: 02DDH (733) RKC communication Input 2_setting limiter (low limit) identifier MODBUS High order: 02E0H (736) register address Low order: 02E1H (737) This value is a low limit of the setting range.
  • Page 195 7. COMMUNICATION DATA DESCRIPTION RKC communication ROM version display identifier MODBUS High order: 02E2H (738) register address Low order: 02E3H (739) This value is a version of the ROM loaded on the controller. Attribute: RO (Read only) Digits: 7 digits Data range: Display the version of loading software.
  • Page 196 7. COMMUNICATION DATA DESCRIPTION RKC communication Power feed transformer input value identifier monitor MODBUS High order: 02E8H (744) register address Low order: 02E9H (745) This value is a monitored value of the power feed forward (PEF) input. Attribute: RO (Read only) Digits: 7 digits Data range:...
  • Page 197 7. COMMUNICATION DATA DESCRIPTION Items relating to the memory area other than the control area: Register addresses (0500H to 0535H) are used for checked and changed the set value relating to the memory area other than the control area. RKC communication Memory area selection identifier MODBUS...
  • Page 198 7. COMMUNICATION DATA DESCRIPTION RKC communication Event 1 set value identifier MODBUS High order: 0502H (1282) register address Low order: 0503H (1283) RKC communication Event 2 set value identifier MODBUS High order: 0504H (1284) register address Low order: 0505H (1285) RKC communication Event 3 set value identifier...
  • Page 199 7. COMMUNICATION DATA DESCRIPTION RKC communication Control loop break alarm 1 (LBA1) identifier time MODBUS High order: 0508H (1288) register address Low order: 0509H (1289) RKC communication Control loop break alarm 2 (LBA2) identifier time MODBUS High order: 050EH (1294) register address Low order: 050FH (1295) The variation of measured value (PV) is monitored for each control loop break alarm (LBA) time.
  • Page 200 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_set value (SV1) identifier MODBUS High order: 0512H (1298) register address Low order: 0513H (1299) RKC communication Input 2_set value (SV2) identifier MODBUS High order: 051EH (1310) register address Low order: 051FH (1311) The set value (SV) is a desired value of the control.
  • Page 201 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_integral time identifier MODBUS High order: 0516H (1302) register address Low order: 0517H (1303) RKC communication Input 2_integral time identifier MODBUS High order: 0522H (1314) register address Low order: 0523H (1315) This value expresses a time of the integral action that eliminates the offset occurring in proportional control.
  • Page 202 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_control response parameter identifier MODBUS High order: 051AH (1306) register address Low order: 051BH (1307) RKC communication Input 2_control response parameter identifier MODBUS High order: 0526H (1318) register address Low order: 0527H (1319) This item is a response resulting from a set value (SV) change in PID control.
  • Page 203 7. COMMUNICATION DATA DESCRIPTION RKC communication Input 1_ identifier setting change rate limiter (down) MODBUS High order: 052CH (1324) register address Low order: 052DH (1325) RKC communication Input 2_ identifier setting change rate limiter (down) MODBUS High order: 0530H (1328) register address Low order: 0531H (1329) This value expresses a set value of the setting change rate limiter down.
  • Page 204 7. COMMUNICATION DATA DESCRIPTION RKC communication Link area number identifier MODBUS High order: 0534H (1332) register address Low order: 0535H (1333) This item uses the combination of the setting change rate limiter up/down and the area soak time in case of simple program operation. (see P. 109) Attribute: R/W (Read and Write) Digits:...

  • Page 205: Troubleshooting

    8. TROUBLESHOOTING WARNING #" To prevent electric shock or instrument failure, always turn off the system power before replacing the instrument. #" To prevent electric shock or instrument failure, always turn off the power before mounting or removing the instrument. #"...
  • Page 206 8. TROUBLESHOOTING Continued from the previous page. Problem Probable cause Solution No response Error in the data format Reexamine the communication program Transmission line is not set to the receive state after data send (for RS-485) EOT return The specified identifier is invalid Confirm the identifier is correct or that with the correct function is specified.
  • Page 207 8. TROUBLESHOOTING !" Modbus Problem Probable cause Solution No response Wrong connection, no connection or Confirm the connection method or disconnection of the communication cable condition and connect correctly Breakage, wrong wiring, or imperfect Confirm the wiring or connector and contact of the communication cable repair or replace the wrong one Mismatch of the setting data of...

  • Page 208: Ascii 7-Bit Code Table

    9. ASCII 7-BIT CODE TABLE This table is only for use with RKC communication. b5 to b7 b4 b3 b2 b1 ‘ ” & ’ < ¥ > ˜ IMR01N03-E1...
  • Page 209 The first edition: JUL 2002 [IMQ00]...
  • Page 210 RKC INSTRUMENT INC. HEADQUARTERS: 16-6, KUGAHARA 5-CHOME, OHTA-KU TOKYO 146-8515 JAPAN PHONE: 03-3751-9799 (+81 3 3751 9799) E-mail: info@rkcinst.co.jp FAX: 03-3751-8585 (+81 3 3751 8585) IMR01N03-E1 JUL. 2002...

This manual is also suitable for:

Ha901Ha900Ha401

Table of Contents