IDEC MICRO3C User Manual
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IDEC MICRO3C User Manual

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C PLC User's Manual

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Summary of Contents for IDEC MICRO3C

  • Page 1 MICRO C PLC User’s Manual...
  • Page 2 MICRO • All ’s are manufactured under IDEC’s rigorous quality control system, but users must add a backup or failsafe MICRO provision to the control system using the in applications where heavy damage or personal injury may be caused in...
  • Page 3 Under no circumstances shall IDEC Corporation be held liable or responsible for indirect or consequential damages resulting from the use of or the application of IDEC PLC components, individually or in combination with other equipment. All persons using these components must be willing to accept responsibility for choosing the correct component to suit their appli- cation and for choosing an application appropriate for the component, individually or in combination with other equipment.

  • Page 4: Table Of Contents

    ABLE OF ONTENTS HAPTER ENERAL NFORMATION Features ............1-1 Parts Description .
  • Page 5 ABLE OF ONTENTS – U HAPTER AMPLE ROGRAM OMMUNICATION System Setup ........... 8-1 Description of Operation .

  • Page 6: General Information

    1: G ENERAL NFORMATION Introduction This chapter describes general information about additional functions and specifications incorporated in the MICRO general information, functions, and specifications inherited from the , see the User’s Manual. MICRO MICRO Features has upgraded functions for communications. The new functions are particularly useful for modem communica- MICRO tion, user communication, and monitoring data communication.
  • Page 7 1: G ENERAL NFORMATION Protocol Selector Switch The protocol selector switch is used to select communication modes for the RS232C loader port and the RS485 data link terminals. When the is powered up, the selected communication modes are enabled automatically. If the protocol MICRO selector switch setting is changed after the is powered up, the new setting does not take effect until the commu-...

  • Page 8: System Setup

    1: G ENERAL NFORMATION System Setup This section describes various system configurations using the and required settings. MICRO Selecting Communication Mode Set the function selector switch and the protocol selector switch to select a desired communication mode for the loader port and data link terminals.
  • Page 9 AC Adapter The loader cable 4C is not supplied with an AC adapter, which must be prepared by the user. Note: AC adapters for IDEC’s FA series PLCs cannot be used. Connecting the Cable Slide the cover to the right The program loader has a cover on the top to select the loader cable connection port or AC adapter jack.
  • Page 10 The computer link cable 6C is not supplied with an AC adapter, which must be prepared by the user. For applicable output plug of the AC adapter, see page 1-4. Note: AC adapters for IDEC’s FA series PLCs cannot be used. ’ ANUAL...
  • Page 11 1: G ENERAL NFORMATION Connecting Modem through Loader Port To connect a modem to the loader port on the , use the modem cable 1C (FC2A-KM1C). Set the protocol selector MICRO switch to 1 or 3 to select user protocol for the loader port. Modem Cable 1C To RS232C Port FC2A-KM1C...
  • Page 12 1: G ENERAL NFORMATION Link Systems has three link functions; expansion link, data link, and computer link. When using a link function, the function MICRO selector switch and protocol selector switch have to be set and the FUN settings may be required. For details of these set- tings, see Expansion Link Function and Data Link Function in the User’s Manual and Computer Link 1:N Com- MICRO...

  • Page 13: Communication Specifications

    1: G ENERAL NFORMATION Communication Specifications This section describes the communication specifications. For general specifications, function specifications, I/O MICRO specifications, and program loader specifications, see the User’s Manual. MICRO Loader Port Communication Specifications Standards EIA RS232C Maximum Cable Length 15m (49.2 ft.) Baud Rate 1200, 2400, 4800, 9600, 19200 bps Data Bits...
  • Page 14 1: G ENERAL NFORMATION Data Link Terminal Communication Specifications Standards EIA RS485 (termination resistor is not required) Recommended Cable ø0.9 mm shielded twisted cable 85 Ω/km maximum Conductor Resistance 12 Ω/km maximum Shield Resistance Maximum Cable Length 200m (656 ft.) Isolation Between data link terminals of multiple MICRO C units: Not isolated...

  • Page 15: Dimensions

    1: G ENERAL NFORMATION Dimensions MICRO C Base Unit Program Loader 30 mm (1.181") 95 mm (3.740") 16-I/O Type: 135 mm (5.315") 60 mm (2.362") 24-I/O Type: 165 mm (6.496") 80 mm (3.150") 25 mm (0.984") Mounting Hole Layout Minimum M4 tapped holes or center to center ø4.5 (0.177"...

  • Page 16: Allocation Numbers

    2: A LLOCATION UMBERS Introduction This chapter describes allocation numbers available only for the . For details about allocation numbers shared MICRO with the , see the User’s Manual. MICRO MICRO Expanded functions in the include: MICRO has 500 data registers D0 through D499 while has 100 data registers D0 through D99.

  • Page 17: I/O Allocation Numbers For Expansion Link System

    2: A LLOCATION UMBERS I/O Allocation Numbers for Expansion Link System Input and output allocation numbers do not continue from the base station to the expansion station. At the expansion sta- tion, inputs start at I20 and outputs start at Q20. Inputs and outputs are allocated depending on the base units MICRO used in the expansion link system as shown below:...

  • Page 18: Special Internal Relays

    2: A LLOCATION UMBERS Special Internal Relays Internal relays M290 through M317 are special internal relays with the following functions: Allocation Number Description CPU Stopped Power OFF M290 Input I0 Operating Cleared M291 Input I1 Operating Cleared M292 Input I2 Operating Cleared M293...

  • Page 19: Data Register Allocation Numbers

    2: A LLOCATION UMBERS Data Register Allocation Numbers Available data registers are limited in the high-speed processing mode or in the data link system configuration. Some data registers are allocated to special functions in the data link system as shown below. For the data link function, see the User’s Manual.
  • Page 20 2: A LLOCATION UMBERS D499 Expansion Control Data Register Service Selection D499 is used to enable or disable expansion control data register service for D484 through D498 divided into group 0 through 3. D499 cannot be used as an ordinary data register and must not be programmed to store data of oper- Warning ation results.
  • Page 21 2: A LLOCATION UMBERS Group 2 D491 Control signal status When group 2 is enabled as expansion control data registers, D491 stores a value to show that RTS, DSR, and DTR are on or off. The data of D491 is updated at every END processing. D491 Value Description All RTS, DSR, and DTR are off.
  • Page 22 2: A LLOCATION UMBERS D490 = 4: When DSR is off, can transmit data. This function is contrary to “D490 = 3.” MICRO DSR signal Transmit Impossible Possible Impossible Transmit data Data D490 = 5: When DSR is on, can receive data. MICRO DSR signal Receive data...
  • Page 23 2: A LLOCATION UMBERS D489 = 2: While is transmitting data, DTR remains off. While is not transmitting data, DTR is turned MICRO MICRO on. The DTR operation at this option is contrary to the operation at D489 = 1. Transmit data Transmit data DTR signal...
  • Page 24 2: A LLOCATION UMBERS D488 = 4: While can receive data, RTS is turned on. Use this option when flow control of receive data is MICRO required. D488 = 5: RTS is turned on or off according to DSR. When DSR is on, RTS is turned on. When DSR is off, RTS remains off.
  • Page 25 2: A LLOCATION UMBERS Group 3 D485 Protocol selector switch value When group 3 is enabled as expansion control data registers, the lower byte of D485 stores the value set on the protocol selector switch. The upper byte of D485 is reserved for maintenance. To view the protocol selector switch value, monitor D485 in hexadecimal notation on the program loader.

  • Page 26: Monitor

    3: C OMMUNICATION ONITOR Introduction This chapter describes FUN29 user communication status readout and FUN50 user communication data monitor. The FUN29 and FUN50 communication monitor functions can be used when the protocol selector switch is set to 3 to select user protocol for the loader port and loader protocol for the data link terminals. While the is communicating through the loader port using the user protocol, the communication status or com- MICRO...

  • Page 27: Fun50: User Communication Data Monitor

    3: C OMMUNICATION ONITOR FUN50: User Communication Data Monitor Transmit and receive data of user communication between the and RS232C equipment can be monitored using MICRO FUN50 on the program loader connected to the data link terminals. Before using the FUN50 user communication data monitor, make sure of the correct system setup shown on the preceding page.

  • Page 28: Modem Mode

    4: M ODEM Introduction This chapter describes the modem mode designed for communication between the and another or any MICRO MICRO data terminal equipment through telephone lines. Using the modem mode, the can initialize a modem, dial a tele- MICRO phone number, send an AT command, enable the answer mode to wait for an incoming call, and disconnect the telephone line.

  • Page 29: Internal Relays For Modem Mode

    4: M ODEM Internal Relays for Modem Mode When the modem mode is enabled, internal relays M260 through M287 are allocated to special functions. M260 through M266 are used to send an AT command or disconnect the telephone line. M270 through M276 and M280 through M286 turn on to indicate the results of the command.

  • Page 30: Originate Mode

    4: M ODEM Originate Mode The originate mode is used to send an initialization string to the modem, issue the ATZ command to reset the modem, and dial the telephone number. To execute a command, turn on one of start internal relays M260 through M262. If two or more start internal relays are turned on simultaneously, an error will result and error code 33h is stored in modem mode status data register D493 (see page 4-6).
  • Page 31 4: M ODEM Dialing the Telephone Number When the modem mode is enabled, data registers D160 through D209 are allocated to the telephone number. Before turn- ing on one of the start internal relays M260 through M262 for the originate mode, store the telephone number in data reg- isters starting with D160.

  • Page 32: Disconnect Mode

    4: M ODEM Disconnect Mode The disconnect mode includes only one command to disconnect the telephone line. To disconnect the telephone line, turn internal relay M263 on. The telephone line is disconnected by turning the DTR signal off since the initialization string includes the &D2 command.

  • Page 33: Answer Mode

    4: M ODEM Answer Mode The answer mode is used to send an initialization string to the modem and to issue the ATZ command to reset the modem. To execute a command, turn on one of start internal relays M265 or M266. If two or more start internal relays are turned on simultaneously, an error will result and error code 33h is stored in modem mode status data register D493 (see below).

  • Page 34: Initialization String Commands

    4: M ODEM Initialization String Commands The default initialization string includes the commands shown below. The commands are described in three categories of importance. For details of modem commands, see the user’s manual for your modem. When modifying the initialization string, include the commands in the first category to make sure of correct modem communication.

  • Page 35: Preparation Before Using Modem

    4: M ODEM Preparation before Using Modem Before using a modem, read the user’s manual for your modem. Determine commands for the initialization string To check if a particular AT command can be used for your modem, use the following method: 1.

  • Page 36: Operating Procedure

    4: M ODEM Operating Procedure 1. After completing the user program including FUN8 settings, transfer the user program to the from the pro- MICRO gram loader or a computer running through the loader port or the data link terminals. To transfer the user pro- CUBIQ gram, the loader port or the data link terminals must be set to loader protocol using the protocol selector switch.

  • Page 37: Checking Modem Operation

    4: M ODEM Checking Modem Operation Confirm the modem operation referring to the user’s manual for your modem. Indicator names may differ depending on the brand and model of modems but have the same functions. 1. Make sure the modem is powered up. The POWER indicator must be on. 2.

  • Page 38: Communication Instructions

    5: U OMMUNICATION NSTRUCTIONS Introduction This chapter describes the programming of the TXD (transmit) instruction and RXD (receive) instruction for user commu- nication. With the protocol selector switch set to 1 or 3 to select user protocol for the loader port, can transmit data using MICRO the TXD instruction through the loader port to an RS232C remote terminal, such as a computer, printer, or modem.
  • Page 39 5: U OMMUNICATION NSTRUCTIONS Transmit Data Transmit data is designated by source operand S1 using constant values or data registers. BCC code can also be calculated automatically and appended to the transmit data. One TXD instruction can transmit 200 bytes of data at the maximum. S1 (Source 1) Transmit Digits Calculation...
  • Page 40 5: U OMMUNICATION NSTRUCTIONS Transmit Digits (Bytes) After conversion, the transmit data is taken out in specified digits. Possible digits depend on the selected conversion type. → → Example: D10 stores 000Ch (12) and is converted in Binary ASCII (1) Transmit Digits = 2 “0”...
  • Page 41 5: U OMMUNICATION NSTRUCTIONS BCC Calculation Start Position The start position for the BCC calculation can be specified from the first byte through the 15th byte. The BCC is calculated for the range starting from the designated position up to the byte immediately before the BCC of the transmit data. Example: Transmit data consists of 17 bytes plus 2 BCC digits.
  • Page 42 5: U OMMUNICATION NSTRUCTIONS Transmit Completion Output Designate an output, Q0 through Q31, or an internal relay, M0 through M287, as an operand for the transmit completion output. When the start input for a TXD instruction is turned on, preparation for transmission is initiated, followed by data trans- mission.
  • Page 43 5: U OMMUNICATION NSTRUCTIONS Key Operation for Programming TXD Instruction on Program Loader The following example demonstrates how to program a TXD instruction using the program loader. Data register contents: D010 = 1234 04D2h D011 162Eh = 5678 Transmit data example: BCC calculation range “1”...
  • Page 44 5: U OMMUNICATION NSTRUCTIONS Enter a BCC code of 2 digits calculated using the ADD format, binary→ASCII conversion; calculation is started at the first byte of the transmit data. When BCC calculation starts at the first byte, these keys may be omitted. 1 STX (02) 2 D 10...

  • Page 45: B2 Rxd (Receive)

    5: U OMMUNICATION NSTRUCTIONS RXD (Receive) When input is on, data received through the loader port from a remote ter- minal with an RS232C port is converted and stored in data registers accord- ***** **** **** ing to the receive format designated by S1. Key Operation Enter operands S1, D1, and D2.
  • Page 46 5: U OMMUNICATION NSTRUCTIONS Receive Format Receive format, designated by source operand S1, specifies data registers to store received data, data digits for storing data, data conversion type, and repeat cycles. A start delimiter and an end delimiter can be included in the receive format to discriminate valid incoming communication.
  • Page 47 5: U OMMUNICATION NSTRUCTIONS Conversion Type The data block of the specified receive digits is then converted according to the designated conversion type as described below: Example: Received data has been divided into a 2-digit block. → (1) ASCII Binary conversion “1”...
  • Page 48 5: U OMMUNICATION NSTRUCTIONS Designating Constant as Start Delimiter A start delimiter can be programmed at the first byte in the receive format of an RXD instruction; the will recog- MICRO nize the beginning of valid communication, although an RXD instruction without a start delimiter can also be executed. When a constant value is designated at the first byte of source operand S1, the one-byte data serves as a start delimiter to start the processing of the received data.
  • Page 49 5: U OMMUNICATION NSTRUCTIONS Designating Constant as End Delimiter An end delimiter can be programmed at other than the first byte in the receive format of an RXD instruction; the MICRO will recognize the end of valid communication, although RXD instructions without an end delimiter can also be executed. When a constant value is designated at other than the first byte of source operand S1, the one-byte data serves as an end delimiter to end the processing of the received data.
  • Page 50 5: U OMMUNICATION NSTRUCTIONS Skip When “skip” is designated in the receive format, a specified quantity of digits in the incoming data are skipped and not stored to data registers. A maximum of 99 digits (bytes) of characters can be skipped continuously. Example: When an RXD instruction with skip for 2 digits starting at the third byte is executed Incoming Data “1”...
  • Page 51 5: U OMMUNICATION NSTRUCTIONS BCC Calculation Formula BCC calculation formula can be selected from XOR (exclusive OR) or ADD (addition) operation. Example: Incoming data consist of 41h, 42h, 43h, 44h, and 45h. (1) BCC Calculation Formula = XOR 41h ⊕ 42h ⊕ 43h ⊕ 44h ⊕ 45h = 41h (2) BCC Calculation Formula = ADD 41h + 42h + 43h + 44h + 45h = 14Fh →...
  • Page 52 5: U OMMUNICATION NSTRUCTIONS Comparing BCC Codes compares the BCC calculation result with the BCC code in the received incoming data to check for any error in MICRO the incoming communication due to external noises or other causes. If a disparity is found in the comparison, an error code is stored in the data register designated as receive status in the RXD instruction.
  • Page 53 5: U OMMUNICATION NSTRUCTIONS Receive Status Designate a data register, D0 through D497, as an operand to store the receive status information including a receive status code and a user communication error code. When the data register designated for the receive status is monitored in hexadecimal notation on the program loader, the second lowest digit indicates a receive status code and the lowest digit indicates a user communication error code.
  • Page 54 5: U OMMUNICATION NSTRUCTIONS Key Operation for Programming RXD Instruction on Program Loader The following example demonstrates how to program an RXD instruction including a start delimiter, skip, BCC, and end delimiter using the program loader. Converted data is stored to data registers D20 and D21. Internal relay M20 is used as destination D1 for the receive completion output.
  • Page 55 5: U OMMUNICATION NSTRUCTIONS Enter a BCC code of 2 digits calculated using the ADD format, binary→ASCII conversion; calculation is started at the first byte of the received data. When BCC calculation starts at the first byte, these keys may be omitted. 2 SKIP 6 D 20 14 BCC...

  • Page 56: B3 Cmp2 (Double-Word Comparison)

    6: C OMPARISON NSTRUCTION Introduction This chapter describes the programming of the CMP2 (double-word comparison) instruction. This instruction is useful to compare data received using the user communication. The CMP2 instruction compares data in data registers. Two consecutive data registers designated by a source operand are compared with two consecutive data registers designated by another source operand.
  • Page 57 6: C OMPARISON NSTRUCTION Repeat Operation in the Double-word Comparison Instruction Unlike other advanced instructions, when S1 and/or S2 (source) is designated to repeat and D1 (destination) is not desig- nated to repeat, the comparison results are ANDed and set to one destination. When only S1 (source) is designated to repeat, double-word operands (as many as the repeat cycles, starting with the oper- and designated by S1) are compared with the double-word operand designated by S2.

  • Page 58: Omputer Link

    7: C OMPUTER Introduction This chapter describes the computer link 1:N communication system for controlling multiple units from a com- MICRO puter. Unlike the computer link 1:N communication system for the , shielded twisted pair cables from the RS232C/ MICRO RS485 converter can be connected to data link terminals on the directly, without the need for the computer link MICRO...

  • Page 59: Computer Link 1:N Communication Using Modems

    7: C OMPUTER Computer Link 1:N Communication Using Modems A 1:N computer link system can also be controlled through modems using RS232C/RS485 converter FC2A-MD1. Connect a computer and the RS232C/RS485 converter to modems using RS232C straight cables. Connect the RS232C/RS485 converter to units using shielded twisted pair cables.

  • Page 60: Rs232C/Rs485 Converter Fc2A-Md1

    7: C OMPUTER RS232C/RS485 Converter FC2A-MD1 The RS232C/RS485 converter FC2A-MD1 is used with the and the to convert data signals between EIA MICRO MICRO RS232C and EIA RS485. This converter makes it possible to connect a host device with RS232C interface to multiple programmable controllers using one cable.

  • Page 61: Rs232C Cable Hd9Z-C52

    7: C OMPUTER RS232C Connector Pinouts Pin No. Description D-sub 25-pin Female Connector Frame Ground Transmit Data Receive Data (RTS) Unused (CTS) Unused (NC) Unused Note: Terminals 4 and 5 are connected together internally. Signal Ground 8-25 (NC) Unused Dimensions Mounting Bracket Mounting Hole Layout 3.6 mm...

  • Page 62: User Communication Txd

    8: S – U AMPLE ROGRAM OMMUNICATION Introduction This example demonstrates a program to send data to a printer using the user communication TXD (transmit) instruction. Serial printers used for this example are Seiko Electronic’s DPU-201GS and Citizen’s iDP3110 printers. System Setup Protocol Selector Switch Set to 1 or 3 to select user protocol...

  • Page 63: Setting Communication Parameters

    8: S – U AMPLE ROGRAM OMMUNICATION Setting Communication Parameters Set the FUN8 loader port communication parameters to match those of the printer. For details of the communication parameters of the printer, see the user’s manual for the printer. Communication Parameters: Terminator Code Baud Rate Baud rate...

  • Page 64: System Setup

    9: S – U TXD & RXD AMPLE ROGRAM OMMUNICATION Introduction This example demonstrates a program of the user communication TXD and RXD instructions to read and write data regis- ters. When the computer sends a message to read data from data registers using a BASIC program, the sends MICRO back data from predetermined data registers to the computer using the TXD instruction.

  • Page 65: Setting Communication Parameters

    9: S – U TXD & RXD AMPLE ROGRAM OMMUNICATION Setting Communication Parameters Set the FUN8 loader port communication parameters to the default values. Communication Parameters: Terminator Code Baud Rate Baud rate 9600 bps COM-FORM (Note 1) Data bits * 9600bps *0D Parity check Even Data Bits...

  • Page 66: Basic Program

    9: S – U TXD & RXD AMPLE ROGRAM OMMUNICATION BASIC Program 1000 'SAVE "MONWRITE.BAS",A 1010 '+--------------------------------------+ 1020 '| 1030 '| Monitor Data Registers D50 & D51 1040 '| Write to Data Registers D50 & D51 1050 '| 1060 '+--------------------------------------+ 1070 CLS 1080 '-----------------------------------[Open Communication Line] 1090 OPEN "COM1:9600,E,7,1"...

  • Page 67: Ladder Diagram

    9: S – U TXD & RXD AMPLE ROGRAM OMMUNICATION Ladder Diagram When the is started, M301 is turned on to execute a MOV instruction and 0 is set to data register D499 to disable MICRO the expansion control data register service. When expansion control data registers are not required, programming to set 0 to D499 is recommended to make sure that the modem communication mode is not enabled unexpectedly.

  • Page 68: Program - Modem Communication

    10: S – M AMPLE ROGRAM ODEM OMMUNICATION Introduction This example is an automatic monitor system using the ’s modem mode. Both modems at the local and remote MICRO stations are initialized by the . When the internal clock reaches 0 minutes and 0 seconds at every hour, the MICRO at the remote station dials the telephone number and sends the status of input I1 to the at the local sta-...

  • Page 69: Allocation Numbers (Remote Station)

    10: S – M AMPLE ROGRAM ODEM OMMUNICATION Allocation Numbers (Remote Station) Allocation Number Description Input from a switch to start modem communication manually to send the I1 status Input from a sensor to start modem communication every hour to send the I1 status Error output which goes on when retry countout, initialization string or ATZ failure occurs Goes on at 0 minutes Goes on at 0 seconds...

  • Page 70: Allocation Numbers (Local Station)

    10: S – M AMPLE ROGRAM ODEM OMMUNICATION Allocation Numbers (Local Station) Allocation Number Description Goes on when receiving A indicating input I1 on at the remote station Goes on when receiving B indicating input I1 off at the remote station Receive completion output for receiving A to indicate input I1 on at the remote station Receive completion output for receiving B to indicate input I1 off at the remote station Transmit completion output for transmitting C to start disconnecting the telephone line...

  • Page 71: Ladder Diagram (Remote Station)

    10: S – M AMPLE ROGRAM ODEM OMMUNICATION Ladder Diagram (Remote Station) In-operation M317 is the in-operation output special internal relay. CLKR M317 CLKR (clock read) stores the hour, minute, and second data to D1, D2, and D3, respectively. CMP= When D2 (minute) equals 0, M0 is turned on.
  • Page 72 10: S – M AMPLE ROGRAM ODEM OMMUNICATION Ladder Diagram (Remote Station), continued Transmit A Complete When A or B is transmitted successfully, RXD is executed to wait for incoming data C RXD Data When receiving is complete, receive completion M13 is “C”...

  • Page 73: Ladder Diagram (Local Station)

    10: S – M AMPLE ROGRAM ODEM OMMUNICATION Ladder Diagram (Local Station) In-operation When is started, M317 is turned on to start timer MICRO T0 for 1-sec time delay to enable the modem mode before M317 sending the initialization string. 1 sec Start Initialization String When timer T0 times out, M265 is turned on to send the...

  • Page 74: Troubleshooting

    11: T ROUBLESHOOTING Introduction This chapter describes the procedures to determine the cause of trouble and actions to be taken when any trouble occurs while operating the programmable controller. MICRO For descriptions about error indicators ERR1 and ERR2, reading error data using FUN20, and general error codes, see the User’s Manual.

  • Page 75: User Communication Error

    11: T ROUBLESHOOTING User Communication Error When a user communication error occurs, a user communication error code is stored in the data register designated as a transmit status in the TXD instruction or as a receive status in the RXD instruction. When multiple errors occur, the final error code overwrites all preceding errors and is stored in the status data register.

  • Page 76: Troubleshooting Diagrams

    11: T ROUBLESHOOTING Troubleshooting Diagrams When one of the following problems is encountered, see the troubleshooting diagrams described in the MICRO User’s Manual or on the following pages in this manual. Problem Troubleshooting Diagram See Manual The POW (power) indicator does not go on. Diagram 1 MICRO User’s Manual...
  • Page 77 Is the POW (power) “The POW (power) indicator does indicator on? not go on.” in the MICRO User’s Manual. Is FUN8 Loader Port Set the loader port communication Communication Mode mode to default. set to default? Call IDEC for assistance. 11-4 ’ ANUAL...
  • Page 78 Is the POW (power) not go on.” in the MICRO User’s indicator on? Manual. Call IDEC for assistance. Troubleshooting Diagram 7-3 When only program transfer is not possible: (both the loader port and data link terminals) Only program transfer is not possible.
  • Page 79 Turn power off at the base or master station, Or, turn M307 on during operation. and turn power on after a few seconds. MON, M307, SET, Are error codes cleared to 0 at all stations? Call IDEC for assistance. 11-6 ’ ANUAL...
  • Page 80 MICRO User’s Manual. Did you See Communication Monitor FUN29 on check the transmit data using page 3-1 and FUN50 on page 3-2 in this the communication user’s manual. monitor? Call IDEC for assistance. ’ 11-7 ANUAL...
  • Page 81 1 operand of the as source 1 operand is correct. TXD instruction? Call IDEC for assistance. When the user communication still has a problem after completing the above procedure, also perform the procedure of Diagram 16-1 described on the preceding page.
  • Page 82 MICRO User’s Manual. Did you See Communication Monitor FUN29 on check the receive data using page 3-1 and FUN50 on page 3-2 in this the communication user’s manual. monitor? Call IDEC for assistance. ’ 11-9 ANUAL...
  • Page 83 FUN8? intervals of the incoming data. Did you make Make sure that the receive data sure of source 1 operand of the designated as the source 1 oper- RXD instruction? and is correct. Call IDEC for assistance. 11-10 ’ ANUAL...

  • Page 84: Ppendix

    PPENDIX Type List MICRO C CPU Base Units / Expansion I/O and Program Loader Total I/O Clock Name Points Type No. Calendar (Inputs/Outputs) 16 points AC Power With FC2A-C16A1C Relay Output (9 in / 7 out) 24V DC Input Power Voltage: MICRO 240V AC, 2A Sink/Source...

  • Page 85: Ascii Character Code Table

    PPENDIX ASCII Character Code Table Upper Lower E SP Decimal Decimal ” Decimal Decimal Decimal Decimal & Decimal ’ Decimal BS C A N Decimal HT EM Decimal LF S U B Decimal VT E S C Decimal < Decimal Decimal >...
  • Page 86 NDEX data register allocation numbers 2-4 1:1 communication 1-5 data registers for modem mode 4-2 1:N communication 7-1 day (calendar) 2-5 AC adapter 1-4, 1-5, 7-4 dialing 4-2 advanced instruction telephone number 4-4 CMP2 6-1 dimensions 1-10, 7-4 RXD 5-8 disconnect TXD 5-1 line 4-2...
  • Page 87 NDEX modem 1-6, 7-2 telephone number 4-2, 4-4 cable 1C 1-6, 4-1, 10-1 transmit 5-1 mode 4-1 bytes 5-3 mode selection 2-5 completion output 5-1, 5-5 mode status 2-5, 4-2 data 5-1, 5-2 data register 4-6 data byte count 5-5 modify initialization string 4-2 digits 5-3 month (calendar) 2-5...

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