Chino AL3000 Series Instructions Manual
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Chino AL3000 Series Instructions Manual

Hybrid recorder
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INST.№ INE-272K
Please make sure that this manual is handed to the final user of the instrument.
AL3000/AH3000 SERIES
HYBRID RECORDER
COMMUNICATION
INTERFACES
Retain this manual apart from the
instrument and in an easily accessible.

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Summary of Contents for Chino AL3000 Series

  • Page 1 INST.№ INE-272K AL3000/AH3000 SERIES HYBRID RECORDER COMMUNICATION INTERFACES Retain this manual apart from the instrument and in an easily accessible. Please make sure that this manual is handed to the final user of the instrument.

  • Page 2: Table Of Contents

    Contents INTRODUCTION 1 GENERAL 1.1 RS-232C Communications Interface 1.2 RS-422A/485 Communications Interface 2 COMMUNICATIONS PROTOCOL 2.1 Communications Protocol and Mode Switching 3 COMMUNICATIONS SPECIFICATIONS 4 CHECK AND SETTING OF COMMUNICATIONS PARAMETERS 4.1 Check of Communications Parameters 4.2 Programming (Changing) Communications Parameters 5 CONNECTIONS 5.1 Connection Precautions 5.2 Communications Cables...

  • Page 3: Introduction

    1. AL3000 series Hybrid Recorders (Manual No. INE-270) 2. AH3000 series Hybrid Recorder (Manual No. INE-271) 3. AL3000 series (Pen Type) AH3000 series (Pen Type) Hybrid Recorders (Manual No. INE-308) 4. SC8-10 Line Converter (Manual No. INE-39) ※ Also refer to the instruction manual of the computer being used.

  • Page 4: General

    RS-232C communications interface by using an RS-422A or RS-485 ⇔ RS-232C signal converting unit. A line converter (Model SC8-10: sold separately) is available for RS-422A and RS-485 ⇔ RS-232C signal conversion at CHINO. Regarding the difference between RS-422A and RS-485 communications interfaces, the RS-422A needs four signal cables, while RS-485 needs only two signal cables.

  • Page 5: Communications Protocol And Mode Switching

    2.1 Communications Protocol and Mode Switching Operation Display 3 sec. or more, and ＋ IFPORT PRIVATE MODBUS PROTOCOL PROTOCOL MODBUS protocol selected? (Note) COMMODE COMMODE ASCII (Note) When switched from ASCII mode to RTU mode, the character configuration is forcibly changed to "8 bits, parity disabled, stop bit 1".

  • Page 6: Check And Setting Of Communications Parameters

    4 CHECK AND SETTING OF COMMUNICATIONS PARAMETERS 4.1 Check of Communications Parameters By pressing keys for more than 3 sec. under the operation display condition, the [Communications parameters] check display appears and then program the parameters. Checking flow chart (Displays shown are default values.) The display of parameters is different by the communications type.

  • Page 7: Programming (Changing) Communications Parameters

    4.2 Programming (Changing) Communications Parameters This procedure is used to match the communications Reference Default Communications protocols between PCs and AL3000/AH3000 recorders or Parameters program communications addresses (instrument Nos.). Item Parameters Protocol MODBUS Communications Address Programming Flow Chart ( Displays shown are default values. ) Transmission Speed 9600bps The display of parameters is different for each communications type.

  • Page 8: Connections

    For using the RS-422A or RS-485 communications interface, mount a 100 Ω resistor to the AL3000/AH3000 recorder connected at the final end. (For details, see Section 5.4) [A general metal film resistor can be used. The resistor (sold separately) is available at CHINO.] 5.1.6 Number of AL3000/AH3000 recorders connectable...

  • Page 9: Communications Cables

    5.2 Communications Cables Make ready cables dedicated to communications before performing connection. Dedicated communications cables (sold separately) are available at CHINO. 5.2.1 Communications cables for RS-232SC (1) Connection between PC (with 9 pin-terminal) and AL3000/AH3000 recorder and between PC (with 9 pin-terminal) and line converter.
  • Page 10 5.2.2 Communications cables for RS-422A (1) Connection between line converter and AL3000/AH3000 recorder Cable O-shaped crimp terminal RS-422A cable with O-shaped crimp terminal (for line converter) Style To line converter To AL3000/AH3000 recorder The cable consists of a pair of twisted dual-core CVVS wires with SG (signal grounding) wire at both ends.
  • Page 11 5.2.3 Communications cables for RS-485 (1) Connection between line converter and AL3000/AH3000 recorder Cable O-shaped crimp terminal RS-485A cable with O-shaped crimp terminal (for line converter) Style To AL3000/AH3000 recorder To line converter The cable consists of a twisted dual-core CVVS wires with SG (signal grounding) wire at both ends.

  • Page 12: Rs-232C Connections

    5.3 RS-232C Connections The AL3000/AH3000 recorders use three control signals of Send(SD), Receive(RD), Signal ground (SG) only. Since general personal computers are controlled by control signals, the computer does not function by only connecting three signal cables without wiring processing inside the connectors. Wiring processing depends upon the control signals being controlled by the personal computer.

  • Page 13: Rs-422A/485 Connections

    5.4 RS-422A, RS-485 Connections This paragraph describes the method of connecting the RS-422/485 communications interface to the personal computer by using the line converter (Model SC8-10: sold separately). Since the line converter and the personal computer use three control signal of Send, Receive and Signal ground only, the wiring processing inside the connectors is necessary in the same way as in RS-232C connections.

  • Page 14: Modbus Protocol

    6 MODBUS PROTOCOL Basic Procedures of Communications and Precautions Attention! 1. A data request immediately after turning the power on will lead to an error. The AL3000/AH3000 series recorders are always ready for communications. They are at anytime responsive to data requests from personal computers. However, immediately after turning the power on, the recorders do not deliver a normal response until the data of all channels is ready.

  • Page 15: Message Transmission Modes

    6.1 Message Transmission Modes There are two modes of message transmission, RTU (Remote Terminal Unit) and ASCII, which can be selected by key programming. (Table 1 Comparison between RTU and ASCII modes) Item RTU mode ASCII mode RS-232C, RS-422A､RS-485 Interface Communications system Half-duplex start-stop synchronization 9600，19200bps...

  • Page 16: Data Time Interval

    6.2 Data Time Interval In RTU mode: Below 28 bit-time (2.8 msec. at 9600 bps, 1.4 msec. at 19200 bps) In ASCII mode: Below 1 second When sending a message, keep the time interval of data constituting one message not longer than the time specified above.
  • Page 17 (Table 2. Function code table) Code Functions Unit MODBUS original functions (ref.) Read digital (ON/OFF) parameter 1 bit Read coil status Read input relay status Read digital input data 1 bit Read analog parameter 16 bit Read hold register contents Read analog input data 16 bit Read input register contents...
  • Page 18 (Table 4 Quick search table for Reference Nos.) Corresponding Reference Data type Parameters Reference No function code table Key lock Message1 printing Print ON/OFF Feed List printing Title printing 01(READ) Section 6.9.1 Digital parameter 1 to 50 Digital data printing （P.29 to 30）...
  • Page 19 Corresponding Reference Data type Parameters Reference No function code table Measured data 50101 to 50150 Data communications input 50201 to 50250 Programming for each channel 50301 to 51500 Range Scale 70(READ) Section 6.9.5 Floating data Alarm value 71(WRITE) (P.54 to 61) Math Compressed/expanded printing...

  • Page 20: Creating A Message

    6.3.5.2 Calculation of LRC The data from its slave address to its end is calculated in the following procedure. 1) Create a message in RTU mode. 2) Add the start (slave address) to end of the data. -- X 3) Complement X (bit reverse) -- X 4) Add 1 (X = X + 1) 5) Add X as an LRC to the end of the message.
  • Page 21 6.4.1 RTU mode message (1) Slave address : 02 (2) Function code : 04 The data type is "Read analog input data (read input register contents)". When the function code is "04", specify the “data's Relative No. by 2 bytes" and the "number of data pieces by 2 bytes" to be read from the data section.

  • Page 22: Function Code

    6.5 Function Code Responses by function code are given below. (See Table 2. Function code table in Section 6.3.2) Note) See Section 6.6 for responses in abnormal status. 6.5.1 Read digital parameter (read coil status) [Function code: 01 (01H)] The specified number of "digital (ON/OFF) parameters” are read out consecutively commencing with the designated Reference No.
  • Page 23 6.5.3 Read analog set value (read hold register contents) [Function code. 03 (03H)] The specified number of "analog parameters (2 bytes: 16 bits)” are read out consecutively commencing with the designated Reference No. The data is split into higher-order 8 bits and lower-order 8 bits arranged sequentially in number to constitute a data of response message Example) Reading clock information "Year/Month/Day"...
  • Page 24 6.5.5 Write digital parameter (Change single coil status) [Function code: 05 (05H)] A digital parameter with specified numbers is brought into specified status (ON/OFF). Example) Executing the title printing on the slave unit 2 (Turn on Reference No. 20 of digital parameter for the slave unit 2 ) (RTU mode) Master→Instruments...
  • Page 25 6.5.7 Loop back test [Function code: 08 (08H)] Checks transmission between master and slave units. Response is made according to a specified diagnosis code. With the diagnosis code fixed at “0000H”, the AL3000/AH3000 recorder performs a "return check” of unaltered received data transmissions. Example 2) Executing "Loop back test"...
  • Page 26 6.5.9 Read floating data [Function code: 70 (46H)] A specified number of "floating data (floating-point data)" is read out of the designated numbers. This function code is not available in the standard MODBUS. 4 bytes of data (32 bits) constitute one floating data.
  • Page 27 6.5.10 Write floating data [Function code: 71 (47H)] A specified number of "floating data (floating-point data)" from the designated numbers is programmed to specified values. This function code is not available in the standard MODBUS. 4 bytes of data (32 bits) constitute one floating data.

  • Page 28: Processing In Abnormal Status

    6.6 Processing in Abnormal Status The following response is given when any problem is found in the content of a message from the master unit. 6.6.1 Case of no response The message is ignored with no response given when (1) A transmission error (overrun, framing, parity, CRC or LRC) is detected in the message; (2) The slave address in the message is not the receiver's own address;...
  • Page 29 Error codes are as follows. Error code Description Function code failure When receiving an unspecified function code Relative No. (Reference No.) failure When the start No. or parameter No. received is not the specified number. Data pieces failure In any of the following cases that: (1) the function code received is not consistent with the number of data pieces ・with the function code "16", the "number of data"...

  • Page 30: Title Printing Function

    6.7 Title Printing Function Arbitrary characters can be printed on the chart of this recorder through communications. (Printing Specifications) AH 3000 series AL 3000 series No. of print characters Max. 72 characters Max. 40 characters Type of print Alphanumeric characters (caps and lows), Symbols characters Trace printing system: 6 colors of red, black, blue, green, brown and purple can Print colors...

  • Page 31: Table Of Reference

    6.9 Table of Reference 6.9.1 Digital parameters R/W……R:READ，W:WRITE Reference Applicable Description Details function code 0(0000h) = Key lock disabled 1(FF00h) = Key lock enabled Key lock ( ) for the function code of 05 Error code : 01H, 02H, 03H,11H,12H 0(0000h) = Print OFF Message 1 1(FF00h) = Print ON...
  • Page 32 R/W……R:READ，W:WRITE Reference Applicable Description Details function code = Print not executed (execution completed) 1(FF00h) = Print being executed (execution started) Digital data ( ) for the function code of 05 printing Error code : 01H, 02H, 03H,11H,12H 0(0000h) = C 1(FF00h) = F Temperature unit ( ) for the function code of 05...
  • Page 33 6.9.2 Digital input data R/W……R:READ，W:WRITE Reference Applicable Description Details function code Remote contacts 1 status 10009 Remote contacts Status of remote contacts input 10010 2 status 0 : OFF 10011 Remote contacts 1 : ON 10012 3 status Remote contacts 4 status Status expression with 2 BIT 00 : Measured value...
  • Page 34 R/W……R:READ，W:WRITE Applicable Reference No. function Description Details code 10133 to 10134 CH3 Status 1 Same as CH1 10137 to 10140 CH3 Status 2 Same as CH1 10141 to 10144 CH3 Alarm level 1 to CH3 alarm level 4 status Same as CH1 10149 to 10150 CH4 Status 1 Same as CH1...
  • Page 35 R/W……R:READ，W:WRITE Applicable Reference No. function Description Details code 10357 to 10358 CH17 Status 1 Same as CH1 10361 to 10364 CH17 Status 2 Same as CH1 10365 to 10368 CH17 Alarm level 1 to CH17 alarm level 4 status Same as CH1 10373 to 10374 CH18 Status 1 Same as CH1...
  • Page 36 R/W……R:READ，W:WRITE Applicable Reference No. function Description Details code No. of channels 30017 Number of inputs Error code : 01H, 2H, 03H,12H 0：None, 6，12，24 30025 No. of alarm outputs Error code : 01H, 2H, 03H,12H 0：None, 1：Provided 30026 Remote contacts Error code : 01H, 2H, 03H,12H Type of 0：...
  • Page 37 R/W……R:READ，W:WRITE Applicable Reference No. function Description Details code Same as CH1 30115 CH8 data Error code : 01H, 02H, 03H,12H 0 to 3 30116 CH8 Decimal point Error code : 01H, 02H, 03H,12H Same as CH1 30117 CH9 data Error code : 01H, 02H, 03H,12H 0 to 3 30118 CH9 Decimal point...
  • Page 38 R/W……R:READ，W:WRITE Applicable Reference No. function Description Details code Same as CH1 30139 CH20 data Error code : 01H, 02H, 03H,12H 0 to 3 30140 CH20 Decimal point Error code : 01H, 02H, 03H,12H Same as CH1 30141 CH21 data Error code : 01H, 02H, 03H,12H 0 to 3 30142 CH21 Decimal point...
  • Page 39 R/W……R:READ，W:WRITE Applicable Reference No. function Description Details code ASCII 2 digits Lower 2 digits 40008 00 to 99 of the year Error code : 01H, 02H, 03H,12H 1 to 3 40017 Execute chart No. Valid for read only Error code : 01H, 02H, 03H,11H,12H 1 to 1500：1 to 1500mm/h 1mm Step Chart speed 1 40019...
  • Page 40 R/W……R:READ，W:WRITE Applicable Reference No. function Description Details code ASCII 2 digits (space code available for 1st digit) Zone printing 40055 1st Area programming 01 to No. of channels、 00H：No programming Error code : 01H, 02H, 03H,11H,12H ASCII 2 digits (space code available for 1st digit) Zone printing 40056 2nd Area...
  • Page 41 R/W……R:READ，W:WRITE Applicable Reference No. function Description Details code 01 to 99 (Decimal point 1digit fixed) 40081 Alarm deadband Error code : 01H, 02H, 03H,11H,12H * Up to 2 areas can be programmed on AL3000 * Zone printing programming: Same set as key operation (Example) 1st area programming In case of 01 to 03/06 Reference No.
  • Page 42 R/W……R:READ，W:WRITE Applicable Reference No. function Description Details code 1 : Red, 2 : Black, 3 : Blue, 4 : Green, 40112 CH1 Printing color 5：Brown, 6 : Purple Error code : 01H, 02H, 03H,11H,12H ASCII 2 digits (space code available for 1st digit) CH1 Subtract 01 to No.
  • Page 43 R/W……R:READ，W:WRITE Applicable Reference No. function Description Details code ASCII 2 digits (space code available for 1st digit) CH1 Level 1 alarm 40135 01 to No. of alarm outputs, 00H : No programming output relay Error code : 01H, 02H, 03H,11H,12H ASCII 2 digits (space code available for 1st digit) CH1 Level 1 alarm 40137...
  • Page 44 R/W……R:READ，W:WRITE Applicable Reference No. function Description Details code ASCII 2 digits (space code available for 1st digit) CH1 Level 4 alarm 40161 01 to 09, 00H : No programming *Valid for differential alarm reference CH Error code : 01H, 02H, 03H,11H,12H ASCII 2 digits (space code available for 1st digit) CH1 Level 4 alarm 40162...
  • Page 45 R/W……R:READ，W:WRITE Applicable Reference No. function Description Details code CH1 Maths Arithmetic 1 or 2: 0 to 3 expression 40176 Other is 00H. parameter D Error code: 01H, 02H, 03H, 11H, 12H decimal point CH1 Maths ASCII 2-digit (The 1st digit can be a space code.) 40177 expression 01 to No.
  • Page 46 R/W……R:READ，W:WRITE Applicable Reference No. function Description Details code CH1 Automatic -9999 to 30000 (Scale decimal point used for decimal place) range-shift 40193 -30000 : No programming 4th range max. Error code : 01H, 02H, 03H,11H,12H value CH1 automatic -9999 to 30000 (Scale decimal point used for decimal place) range-shift 40194 -30000 : No programming...
  • Page 47 R/W……R:READ，W:WRITE Applicable Reference No. function Description Details code 41802 CH18 Programming Same as CH1 parameters (40102 to 40194) parameter CH1 + 1700 41894 41902 CH19 Programming Same as CH1 parameters (40102 to 40194) parameter CH1 + 1800 41994 42002 CH20 Programming Same as CH1 parameters (40102 to 40194) parameter CH1 + 1900...
  • Page 48 R/W……R:READ，W:WRITE Applicable Reference No. function Description Details code Alarm relay 7 0=OR 46307 output mode 1=AND *Pen-writing type only Error code : 01H, 02H, 03H,11H,12H Alarm relay 8 0=OR 46308 output mode 1=AND *Pen-writing type only Error code : 01H, 02H, 03H,11H,12H Alarm relay 9 0=OR 46309...
  • Page 49 4) Title printing Titles up to 40 characters with AL3000 and up to 72 characters with AH3000 can be printed through communications. Print character programming is accomplished here. Printing is executed with the title printing command of Reference No. 20. R/W……R:READ，W:WRITE Applicable Reference No.
  • Page 50 R/W……R:READ，W:WRITE Applicable Reference No. function Description Details code Title printing ASCII code 2 characters 48022 Characters 39, 40 Error code : 01H, 02H, 03H,11H,12H * Title printing ASCII code 2 characters (Valid for AH) 48023 Characters 41, 42 Error code : 01H, 02H, 03H,11H,12H Title printing ASCII code 2 characters (Valid for AH) 48024...
  • Page 51 5)Parameters common to channels (3) R/W……R:READ，W:WRITE Applicable Reference No. function Description Details code 0=No function, 1=Chart drive, 2=Message (1, 2), 3=Message (1, 2, 3, 4, 5), 4=Act-A, 5=Act-B, 6=Act-C, 7=Act-D, 8=Data printing, 9=List 1 printing, 10=List 2 printing, 11=List 3 printing, 12=Totaliser reset *When the chart drive is specified, the same Remote contacts 1...
  • Page 52 6) Title Printing R/W……R:READ，W:WRITE Applicable function Reference No. Description Details code Message 1 printing ASCII code 2 characters Characters 1, 2 48201 *Characters after 00H are invalid. *Pen-writing type Error code : 01H, 02H, 03H,11H,12H only Message 1 printing Characters 3, 4 ASCII code 2 characters 48202 *Pen-writing type...
  • Page 53 7) Data communications input Printing takes place according to the communications input data from the master unit. This is made valid when the operation No. of the programming parameters per channel is programmed to the data communications input 6. Printing is decided by max. and min. values of printing scale. Data is "0" until the first data is received through communications after the power supply is turned on.
  • Page 54 R/W……R:READ，W:WRITE Applicable function Reference No. Description Details code Data Communications Same as CH1 49013 input Error code : 01H, 02H, 03H,11H,12H CH 7 Data Data Communications 0 to 3 49014 input Error code : 01H, 02H, 03H,11H,12H CH7 Decimal point Data Communications Same as CH1...
  • Page 55 R/W……R:READ，W:WRITE Applicable function Reference No. Description Details code Data Communications Same as CH1 49027 input Error code : 01H, 02H, 03H,11H,12H CH 14 Data Data Communications 0 to 3 49028 input Error code : 01H, 02H, 03H,11H,12H CH14 Decimal point Data Communications Same as CH1...
  • Page 56 R/W……R:READ，W:WRITE Applicable function Reference No. Description Details code Data Communications Same as CH1 49041 input Error code : 01H, 02H, 03H,11H,12H CH 21 Data Data Communications 0 to 3 49042 input Error code : 01H, 02H, 03H,11H,12H CH21 Decimal point Data Communications Same as CH1...
  • Page 57 R/W……R:READ，W:WRITE Applicable function Reference No. Description Details code Same as CH1 50106 CH6 Data Error code : 01H, 02H, 03H,12H Same as CH1 50107 CH7 Data Error code : 01H, 02H, 03H,12H Same as CH1 50108 CH8 Data Error code : 01H, 02H, 03H,12H Same as CH1 50109 CH9 Data...
  • Page 58 2)Data Communications Input R/W……R:READ，W:WRITE Applicable function Reference No. Description Details code DATA：-9999 to 99999 Data communications +100000：+Over range, -100000：-Over range 50201 input +200000：Burnout data CH1 Input data Error code : 01H, 02H, 03H,11H,12H Data communications Same as CH1 50202 input Error code : 01H, 02H, 03H,11H,12H CH2 Input data Data...
  • Page 59 R/W……R:READ，W:WRITE Applicable Reference No. function Description Details code Data communications Same as CH1 50214 input Error code : 01H, 02H, 03H,11H,12H CH14 Input data Data communications Same as CH1 50215 input Error code : 01H, 02H, 03H,11H,12H CH15 Input data Data communications Same as CH1...
  • Page 60 3)Parameters per channel (Note) Writing multiple programming values across two or more channels constitutes an error (error code 12H) R/W……R:READ，W:WRITE Applicable function Reference No. Description Details code CH1 Range -9999 to 99999 50301 Minimum value Error code : 01H, 02H, 03H,11H,12H CH1 Range -9999 to 99999 50302...
  • Page 61 R/W……R:READ，W:WRITE Applicable function Reference No. Description Details code CH1 Maths 0 to 3 expression 50317 parameter A Error code: 01H, 02H, 03H, 11H, 12H decimal point CH1 Maths -9999 to 99999 50318 expression Error code: 01H, 02H, 03H, 11H, 12H parameter B CH1 Maths expression...
  • Page 62 R/W……R:READ，W:WRITE Applicable function Reference No. Description Details code CH1 Subtracted -9999 to 99999 50333 data printing range * Use scale decimal point. minimum value Error code : 01H, 02H, 03H,11H,12H CH1 Subtracted -9999 to 99999 50334 data printing range * Scale decimal point used maximum value Error code : 01H,02H,03H,11H,12H CH1 AU...
  • Page 63 R/W……R:READ，W:WRITE Applicable function Reference No. Description Details code 50701 CH9 Floating-point Same as CH1 parameters (50301 to 50342) programming CH1 + 400 50742 parameter 50751 CH10 Floating-point Same as CH1 parameters (50301 to 50342) programming CH1 + 450 50792 parameter 50801 CH11 Floating-point Same as CH1 parameters (50301 to 50342)

  • Page 64: Private Protocol

    7 PRIVATE PROTOCOL Basic Procedures of Communications and Precautions Attention! 1. A data request immediately after turning the power on will lead to an error. AL3000/AH3000 are always ready for communications. They are at anytime responsive to data requests from a personal computer. However, immediately after turning the power on, the recorders do not deliver a normal response until the data of all channels is ready.

  • Page 65: Basics Of The Communications Sequence

    7.1 Basics of the Communications Sequence When establishing communications, be sure to observe the sequence of sending a data request command from the personal computer to AL3000/AH3000 and then receiving a response to this request from AL3000/AH3000. 7.2 Control Character Code Use the following character codes in the communications format.

  • Page 66: Data Transmission And Reception

    7.4 Data Transmission and Reception 7.4.1 Commands The following commands are available in AL3000/AH3000 to allow a number of data requests. Note that the four commands "LR", "HR", "LO" and "HO" are used exclusively for the 24-point AH3000 recorder. Do not use them for anything other than the 24 point recorder.
  • Page 67 7.4.2. COMMAND FORMAT AL3000/AH3000 Command(DR・LR・HR・DO・LO・HO・ST・DS） 7.4.3 COMMAND RESPONSE 1. AL3000/AH3000 Actual Scale output Year Month Day Hour Second Channel Minute 01(fixed) number Input type Range No. 2 digits (Subtract printing: 91) Measured data (6 digits) Measured data on number of channels Status 0: Normal 1: Over-range...
  • Page 68 2. Scan busy output ， S C B Text Scan busy code 3. Normal response (Response to DS command received) 4. Abnormal response Error code 01: Framing error 02: Overrun error 03: Parity error 04: Checksum error 06: Time out for waiting ETX 09: Instrument busy 10: Format error －66－...

  • Page 69: Checksums

    7.5 Checksums AL3000/AH3000 can add checksum data to check transmission errors. A checksum is the sum of characters after STX up to ETX, the lower-order 8 bits of which are divided into higher and lower-order 4 bits and converted to 0 to F characters. They are transmitted and received sequentially from higher order to lower order bits.

  • Page 70: Hardware Check For Communications Function

    8 HARDWARE CHECK FOR COMMUNICATIONS FUNCTION If the communications function of the AL3000/AH3000 does not work normally, perform a hardware check by removing the communications lines of the individual AL3000/AH3000 units. 8.1 Connection Connect the communications terminals of AL3000/AH3000 as indicated below: 1.

  • Page 71: Hardware Check Procedure

    8.2 HARDWARE CHECK PROCEDURE Check flow chart Operation Display For more than 3 sec. (CLR): Memory clear mode (CAL): Scale adjustment mode reference (CHK): Check mode Cursor for shifting the cursor Cursor Check mode 1 (SF): ROM version check (PR): Print test (DP): Display test reference Cursor...

  • Page 72: How To Change The Communications Port

    9 HOW TO CHANGE THE COMMUNICATIONS PORT The default communications port of the AL3000/AH3000 is "for host communications". When programming parameters, etc. using engineering software (sold separately), change the port to "Engineering". Note that such a change is necessary only when the engineering software is used. Continue pressing for at least 3 seconds on the Operation Display to ＋...

  • Page 73: Sample Program (For Private Protocol)

    10 SAMPLE PROGRAM (For Private Protocol) * For MODBUS protocol, use the software programs of 「Data Logging Software "KIDS"」and 「Parameter Programming Software “PASS”」which are compatible with Windows95/NT4.0 10. 1 Sample Program for RS-232C Communications Interface Program name: RSMNAH (IBM AT) This program is used to check the communications status easily.
  • Page 74 10.2 Sample Program for RS-422A/485 Communications Interface Program name: RAMNAH (IBM AT) This program is used to check the communications status easily. By pressing key after entering [02] from the keyboard, a data link is established. By pressing key without any entry, the data link is abandoned.
  • Page 75 GOTO 160 ‘ ‘ *INCOMING CHARACTERS IF LOC(1) <2 THEN RETURN LINE INPUT #1,A$ PRINT A$ :AFLG=0 RETURN ‘ －73－...
  • Page 76 32-8, KUMANO-CHO, ITABASHI-KU, TOKYO 173-8632 Telephone : 81-3-3956-2171 Facsimile : 81-3-3956-0915 The eleventh edition Jun. 2003 Printed in Japan (...

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