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RKC INSTRUMENT REX-F9000 Instruction Manual

High resolution temperature controller
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High Resolution
Temperature Controller
REX-F9000
Communication
Instruction Manual
IM9000F02-E3
RKC INSTRUMENT INC.
®

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Summary of Contents for RKC INSTRUMENT REX-F9000

  • Page 1 High Resolution Temperature Controller REX-F9000 Communication Instruction Manual IM9000F02-E3 RKC INSTRUMENT INC. ®...
  • Page 2 MELSEC : MITSUBISHI product C200HS: OMRON product Company names and product names used in this manual are the trademarks or registered trademarks of the respective companies. All Rights Reserved, Copyright 1999, 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 The figures, diagrams and numeric values used in this manual are only for purpose of illustration. RKC is not responsible for any damage or injury that is caused as a result of using this instrument, instrument failure or indirect damage.

  • Page 5: Table Of Contents

    5.1 Communication Protocol ................36 5.1.1 Communication data configuration ..............36 5.1.2 Data format ......................38 5.1.3 Data read ......................39 5.1.4 Data write ......................40 5.1.5 Reversal of read/write data bytes ..............41 5.1.6 REX-F9000 no response ..................43 5.1.7 Example of text sent by PLC ................43 IM9000F02-E3...
  • Page 6 Page 5.2 Communication Identifier ................44 5.3 Example of Sequence Program ..............46 5.3.1 MELSEC Series (MITSUBISHI) ................46 5.3.2 C200HS (OMRON)...................48 6. TROUBLESHOOTING ............50 7. ASCII 7-BIT CODE TABLE..........52 IM9000F02-E3...

  • Page 7: Specification

    RKC standard communication: ANSI X3.28 subcategory 2.5, A4 Polling/selecting type Ladder communication: Non-protocol type Error control (Only RKC standard communication): Vertical parity (With parity bit selected) Horizontal parity (BCC check) Maximum connection: RKC standard communication: 32 sets including a host computer...
  • Page 8 1. SPECIFICATIONS Communication code: RKC standard communication: ASCII 7-bit code Ladder communication: Text: BCD code Control code: STX (02H) *, CR (0DH) *, LF (0AH) * * Code in brackets ( ) are in hexadecimal. Terminal resister: or more (Externally connected)

  • Page 9: Connection

    In order to prevent electric shock or instrument failure, turn off power for this instrument and peripheral equipment before connecting or disconnecting. Up to 32 REX-F9000 including the host computer (or programmable controller [hereinafter, the "PLC"]) can be connected if multidrop connected by RS-485.
  • Page 10 When RS-485 is used as a host computer or PLC interface It is necessary that a circuit to transfer send and receive be built-in the host computer (or PLC). Paired wire RS-485 Host computer or PLC REX-F9000 T/R(A) T/R(A) SD (TXD)：Send data T/R(B) T/R(B) RD (RXD)：Receive data...
  • Page 11 Junction terminal RS-485 Device address REX-F9000 REX-F9000 REX-F9000 2-channel type For the 2-channel type REX-F9000 controller, set independent device addresses to CH1 and CH2. Host computer or PLC Host computer or PLC RS-232C RS-485 Communication level converter RS-485 Junction terminal...

  • Page 12: Setting For Communication

    3. SETTING FOR COMMUNICATION In order to make communication between the REX-F9000 and the host computer (or PLC), it is necessary to set the device address, communication speed, communication data configuration, interval time and protocol. Communication settings are made in parameter group 24 (PG24).

  • Page 13: Transfer To Parameter Group

    3. SETTING FOR COMMUNICATION 3.2 Transfer to Parameter Group 24 (PG24) 1. Press the SET key to set the instrument to the SV setting mode. MODE MONI 2. Press the SET key for more than 5 sec in SV setting mode to set the instrument to operator set mode.

  • Page 14: Communication Parameter Selection

    3. SETTING FOR COMMUNICATION 3.3 Communication Parameter Selection Communication parameter in parameter group 24 (PG24) are selected in the order of device address (Add), communication speed (bPS), communication data configuration (bIT), interval time (InT) and protocol selection (CMPS). Each communication parameter is selected by pressing the SET key. Display sequence Parameter group 24 (PG24)

  • Page 15: Device Address Setting

    Range: 0 to 99 Factory set value: 0 Setting procedure For the 2-channel type REX-F9000, set independent device addresses to CH1 and CH2. Example: When setting device address to 15. 1. Change the controller to parameter group 24 (PG24), and then display the device address (See P.
  • Page 16 3. SETTING FOR COMMUNICATION 3. Press the SHIFT key to brightly light the tens digit. MODE MONI 4. Press the UP key to enter "1" in the tens digit. MODE MONI 5. Press the SET key to select the next communication parameter. As a result, the set device address is registered.

  • Page 17: Communication Speed Setting

    Setting procedure Set the same communication speed to both the REX-F9000 and connecting host computer (or PLC). For the 2-channel type REX-F9000, set the same communication speed to CH1 and CH2. Example: When setting communication speed to "2: 4800 bps."...
  • Page 18 3. SETTING FOR COMMUNICATION 2. Press the DOWN key to enter "2" in the lowest digit. As a result, a communication speed of 4800 bps is set. MODE MONI 3. Press the SET key to change to the next communication parameter.

  • Page 19: Communication Data Configuration Setting

    Set the data configuration during communication. Press the UP or DOWN key to change the numeral. Symbol and symbol name (bIT) : Communication data configuration Setting items (1) RKC standard communication: Set the desired numeric value from 0 to 11. Set value Parity bit Data bit...
  • Page 20 3. SETTING FOR COMMUNICATION Setting procedure For the 2-channel type REX-F9000, set the same communication data configuration to CH1 and CH2. Example: When setting communication data configuration to "1: 8 data bits, no parity bit and 2 stop bits." 1. Select the data configuration during communication. (See P. 8.)

  • Page 21: Interval Time Setting

    Range: 0 to 250 ms Factory set value: 250 Setting procedure For the 2-channel type REX-F9000, set the same interval time to CH1 and CH2. Example: When setting interval time to 200 ms. 1. Select the interval time display. (See P. 8.)
  • Page 22 3. SETTING FOR COMMUNICATION 3. Press the DOWN key to enter "0" in the tens digit. MODE MONI 4. Press the SET key to change to the next communication parameter. As a result, the set interval time is registered. MODE MONI : Bright lighting : Dim lighting...

  • Page 23: Protocol Setting

    RKC standard communication Ladder communication Setting procedure For the 2-channel type REX-F9000, set the same protocol selection to CH1 and CH2. Example: When setting protocol to "1: Ladder communication." 1. Select the protocol selection display. (See P. 8.) : Bright lighting...
  • Page 24 3. SETTING FOR COMMUNICATION 3. Press the SET key to change to the next communication parameter. As a result, the set data construction is registered. MODE MONI : Bright lighting : Dim lighting For the 1-channel type, if the key is not operated for more than 1 minute, the present display automatically returns to the PV/SV display.

  • Page 25: Cautions For Communicatin

    This maximum time corresponds to interval time. If no interval time is set, the REX-F9000 side may be set to the send state even when the host computer side is not set to the receive state. As a result, no communication is conducted correctly. In addition, set the interval time so as to match the host computer.
  • Page 26 Polling procedure "Response wait time after BCC send" or selecting procedure "Response wait time after [ACK] or [NAK] send" is processing time required during REX-F9000 data sending. Therefore, select the host computer from receiving to sending after the lapse of the above time.
  • Page 27 MARK (1) when the transmission line is in the high-impedance state. (4) Send/receive processing times The processing time shown in the following is required for the REX-F9000 during data sending and receiving. Polling procedure...

  • Page 28: Rkc Standard Communication

    4. RKC STANDARD COMMUNICATION 4.1 Communication Protocol The REX-F9000 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 established for selecting).
  • Page 29 1. Device address [Number of digits: 2] This data is a device address of the REX-F9000 for polled and must be the same as the device address set value in item "3.4 Device address setting" (P. 9). 2. Identifier [Number of digits: 2] (See P. 31) This is for identifying data requested for the REX-F9000.
  • Page 30 When there is an error in the data type. After all the data has been sent. (5) REX-F9000 no response The REX-F9000 is set to no response when the polling sequence is not received correctly. If necessary, take time out recovery etc. for the host computer. IM9000F02-E3...
  • Page 31 When the response from the host computer is indefinite, the REX-F9000 sends [EOT] to terminate the data link. (10) Data link termination [EOT] If it is necessary to suspend communication with the REX-F9000 or to terminate the data link due to no response from the controller, the host computer sends [EOT]. IM9000F02-E3...
  • Page 32 4. RKC STANDARD COMMUNICATION Polling procedure example (When the host computer requests data) Normal transmission Host computer send Polling Identifier address REXF-9000 data send Host computer send Host computer send REX-F9000 data send For the presence of error in data...

  • Page 33: Selecting

    Send the selecting address selected as the selecting sequence from the host computer. [Device address] (Number of digits: 2) This data is a device address of the REX-F9000 to be selected and must be the same as the device address set value in item "3.4 Device address setting" (P. 9).
  • Page 34 This identifies the data (set value) which is sent by the host computer. 2. Data [Number of digits: 7] This is the data indicated by the identifier of the REX-F9000. It is expressed in decimal ASCII code including a minus sign ( ) and a decimal point.
  • Page 35 When normally receive data exceeds the setting range. (6) No response If the selecting address is not received correctly, the REX-F9000 is set to no response, if [STX], [ETX] and [BCC] is not received correctly, the REX-F9000 is also set to no response.
  • Page 36 4. RKC STANDARD COMMUNICATION Selecting procedure example (When the host computer sends a set value) Normal transmission Host computer send Selecting Send data address REX-F9000 send Host computer send Host computer send ...... Send data REX-F9000 send For the presence of error in data...

  • Page 37: Communication Identifier

    4. RKC STANDARD COMMUNICATION 4.2 Communication Identifier Communication identifier list Before changing data corresponding to the identifiers from "XI (input type)" to "WB (alarm 2 hold action selection)," always turn the "Control RUN/STOP" mode to "STOP." The number of digits is 7 for all data. [Except for model code (ID)]...
  • Page 38 4. RKC STANDARD COMMUNICATION Continued from the previous page. (Attributes RO: Read only, R/W: Read/Write) Name Iden- Data range Attribute Factory set tifier value Control response parameter 0: Slow 1: Medium 2: Fast PV bias 19.999 to +19.999 C 0.000 Sensor bias 1.9999 to +1.9999...
  • Page 39 4. RKC STANDARD COMMUNICATION Continued from the previous page. (Attributes RO: Read only, R/W: Read/Write) Iden- Factory set Name Data range Attribute tifier value Decimal point position 0: No digit below decimal-point selection 1: 1 digit below decimal-point 2: 2 digits below decimal-point...
  • Page 40 When power feed input voltage becomes less than 30 % of rated value Table 1: Error code Any number other than "0" indicates errors (RAM write error, etc.) detected by the REX-F9000 self- diagnosis function. If two or more errors occur simultaneously, the sum total of all error Nos. is sent.
  • Page 41 4. RKC STANDARD COMMUNICATION Table 3: Alarm type Set value Type No alarm Set value high alarm Set value low alarm Process high alarm Process low alarm Deviation high alarm Deviation low alarm Deviation high/low alarm (Absolute value setting) Band alarm (Absolute value setting)

  • Page 42: Ladder Communication

    F9000 uses the ignored process for the ladder communication protocol. Definition of protocol Read: Based on a data request from the PLC, data is sent to the PLC from the REX-F9000. Write: Based on a data request from the PLC, data is received by the REX-F9000.
  • Page 43 5. LADDER COMMUNICATION 3. ID [Identifier] These are numbers used for the PLC to identify data to be requested or set to the REX-F9000. These are numbers of four figures in the communication identifier list (P. 44). 4. CMD [Command] These are commands used for the PLC to identify the details of processing and the data sing to be requested to the REX-F9000.

  • Page 44: Data Format

    REX-F9000 Data after write execution 6. 7. CR, LF [Delimit] Control characters to indicate the end of a text. The REX-F9000 judges that the text ends if it receives CR (0DH) and LF (0AH) in succession. 5.1.2 Data format The data (DAT) format is expressed as internal data excluding the decimal point.

  • Page 45: Data Read

    Reads identifiers requested from the PLC by the corresponding number of data items. A response from REX-F9000 is returned as 4-digit BCD data excluding the sign data and decimal point. Number of data which can be read at a time: 1 to 30.

  • Page 46: Data Write

    Device Identifier 0010 dddd (02H) address (ID) (0DH) (0AH) (ADR) 0011 Command Setting data (CMD) REX-F9000 response Number of bytes Number of BCD digits Details Device Identifier 0010 dddd address (ID) (ADR) 0011 The original data is returned by ignoring data write for either of the following cases.

  • Page 47: Reversal Of Read/Write Data Bytes

    (ADR) These two items can be inverted. Inverting method Reversal of Identifier (ID) and data (DAT) The usual data transfer order is reversed by the command (CMD). REX-F9000 (During data send from PLC) Command Details Identifier transfer order (CMD) (0000)
  • Page 48 When sending data from the upper byte When REX-F9000 sends data: Sends data in order of 12h and 34h. When REX-F9000 receives data: When REX-F9000 receives data in order of 12h and 34h, it recognizes the data as 1234h. When sending data from the lower byte When REX-F9000 sends data: Sends data in order of 34h and 12h.

  • Page 49: Rex-F9000 No Response

    5.1.6 REX-F9000 no response The REX-F9000 issues no-response for any of the following cases. The device address sent from the PLC does not match the device address of the REX-F9000. "CR" and "LF" can't be normally received. When there is an error in the data type.

  • Page 50: Communication Identifier

    5. LADDER COMMUNICATION 5.2 Communication Identifier In RKC standard communication described above, each item is expressed by an identifier combined with a number and a letter (M1, S1 ...) but in ladder communication, each item is expressed only by a number.
  • Page 51 5. LADDER COMMUNICATION Continued from the previous page. (Attributes RO: Read only, R/W: Read/Write) Item Details of data Factory Identifier set value Upper Lower PV bias 1999 to +1999 1/100 C 0000 Undefined Control 0: RUN 0000 RUN/STOP 1: STOP Reversing the 0: Upper byte Lower byte 0000...

  • Page 52: Example Of Sequence Program

    5. LADDER COMMUNICATION 5.3 Example of Sequence Program 5.3.1 MELSEC Series (MITSUBISHI) The ladder communication send/receive program using the MITSUBISHI MELSEC Series (A2CCPU24) is described below. Send data creation program (example) M000 STX setting MOVP H0002 Address setting = 01 Send data creation switch Identifier setting...
  • Page 53 5. LADDER COMMUNICATION Receive program (example) X1E1 Acquisition of receive FROMP character length Receive data read request Stores character length MOVP in index register Transfers receive data FROMP from receive buffer Receive data read Y1F1 completion setting X1E0, X1E1, Y1F0, Y1F1 and K61 in the above program differ depending on the programmable controller used to communication module address.

  • Page 54: C200Hs (Omron)

    5. LADDER COMMUNICATION 5.3.2 C200HS (OMRON) The communication send/receive program using the OMRON C200HS is described below. The following types of OMRON C200HS with the built-in RS-232C post can perform non-protocol communication. C200HS-CPU21 C200HS-CPU23 C200HS-CPU31 C200HS-CPU33 Send data creation program (example) 30000 STX setting #0201...
  • Page 55 5. LADDER COMMUNICATION Receive program (example) 26406 Receive data head register D1100 Control data Receive completion Number of stored data bytes #0000 flag #0256 For details on setting the PLC, see the manual for "OMRON C200HS." IM9000F02-E3...

  • Page 56: Troubleshooting

    6. TROUBLESHOOTING The causes of and measures to be used for faulty controller status during communication are described in the following. For trouble other than the below, contact us or your nearest RKC agent after confirming Model No. and specifications.
  • Page 57 6. TROUBLESHOOTING Ladder communication Details Cause Measures Trouble wit and imperfect contact Check communication cables and communication cable and connector connectors. Device address designation differs Make reassignment after checking the device address by referring to "3.4 Device address setting" (P. 9). Incorrect communication speed Set the communication speed suitable for the PLC by referring to...

  • Page 58: Ascii 7-Bit Code Table

    7. ASCII 7-BIT CODE TABLE b5 to b7 b4 b3 b2 b1 ‘ ” & ’ < ¥ > ˜ IM9000F02-E3...
  • Page 59 The first edition: APR.1999 The third edition: AUG.2002 [IMQ01]...
  • Page 60 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) IM9000F02-E3 AUG.2002...

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