Safety Precautions Observe the following notices to ensure personal safety or to prevent accidents. To ensure that you use this product correctly, read this User’s Manual thoroughly before use. Make sure that you fully understand the product and information on safety. This manual uses two safety flags to indicate different levels of danger. WARNING If critical situations that could lead to user’s death or serious injury is assumed by mishandling of the product.
FP2−CCU Table of Contents Table of Contents Interchangeability with the FP3 and Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii Chapter 1 Functions of Computer Communication Unit 1.1 Functions and Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 − 3 1.1.1 Functions and Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 − 3 1.1.2 Unit Part No. . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents Chapter 4 FP2−CCU RS232C Port Wiring 4.1 RS232C Port Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 − 3 4.2 Wiring between RS232C Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 − 5 4.2.1 Connecting to a Personal Computer . . . . . . . . . . . . . . . . . . . . . . . . . 4 − 5 4.2.2 Connections with Operation Display Panel . . . . . . . . . . . . . . . . . . . . 4 − 6 4.2.
FP2−CCU Interchangeability with the FP3 and Precautions Interchangeability with the FP3 and Precautions Hardware interchangeability The user should be aware that there are some differences between the FP2 and FP3 Computer Communication Units. − The DIP switch settings are different. With the FP2 Computer Communication Unit, only the transmission speed and the character bit can be set with the DIP switches.
Interchangeability with the FP3 and Precautions FP2−CCU Comparison of specifications between the FP2 and FP3 Computer Communication Units Setting item Set value FP2 FP3 No.
Chapter 1 Functions of Computer Communication Unit 1.1 1.2 Functions and Features . . . . . . . . . . . . . . . . . . . . . . . . . . 1 − 3 1.1.1 Functions and Features . . . . . . . . . . . . . . . . . . 1 − 3 1.1.2 Unit Part No. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 − 3 Unit Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 − 4 1.2.1 1.3 1.4 Operation Overview . . . . . . . . . . . . . . . . . . . . . . 1 − 4 Restrictions on Units Combination . .
Functions of Computer Communication Unit 1−2 FP2−CCU
FP2−CCU Functions of Computer Communication Unit 1.1 1.1 1.1.1 Functions and Features Functions and Features Functions and Features The FP2 Computer Communication Unit is designed for use with the FP2/FP2SH progra,mmable controller. It is used as a communication interface that allows data to be read and written between an RS232C device such as a personal computer or display panel, and a CPU unit.
FP2−CCU Functions of Computer Communication Unit 1.2 Unit Operation 1.2 Unit Operation 1.2.1 Operation Overview The Computer Communication Unit reads and writes data and contacts of the CPU unit by the host computer, through an RS232C interface. When a command is sent from a host side, a response is returned from the PLC side. The formats of commands and responses are determined by the MEWTOCOL, which is the communication protocol for the FP series of PLCs.
FP2−CCU Functions of Computer Communication Unit 1.2 Unit Operation Note This unit does not support extension header (<). Use the Multi Communication Unit. Tip MEWTOCOL communication protocol for FP series are generally configured as shown below. Command format (Example showing command for reading data) % 0 1 # R D D0 0 0 0 0 0 0 0 0 1 ** CR Start code End code Destination BCC (Block Check Code) Indicates command Data specification *D 00000 00001 indicates data registers DT0 to DT1.
FP2−CCU Functions of Computer Communication Unit 1.3 Restrictions on Units Combination 1.3 Restrictions on Units Combination 1.3.1 Restrictions on Current Consumption The power supply (5 V DC) used to drive the internal circuits of the Computer Communication Unit and other units is provided from the power supply unit, through the backplane. The overall current consumption, including the current used by other units, should not exceed the rated capacity of the power supply unit. Unit name Part No.
FP2−CCU Functions of Computer Communication Unit 1.3 Restrictions on Units Combination 1.3.3 Restrictions on Number of Units that can be Installed The number of Computer Communication Units that can be installed is as shown in the table below. Unit type When FP2 CPU unit is used When FP2SH CPU unit is used Computer Communication Unit Only one. Up to three units can be used if they are used within the range of restrictions described under “section 1.
FP2−CCU Functions of Computer Communication Unit 1.4 Communication Conditions and Restrictions Relating to Functions 1.4 Communication Conditions and Restrictions Relating to Functions 1.4.
FP2−CCU Functions of Computer Communication Unit 1.4 Communication Conditions and Restrictions Relating to Functions Tip − “Multiple frames” means that, if a command or response exceeds 118 bytes, the command or response is divided into multiple segments and transmitted or received. For example, this applies in cases such as when a program is read from a tool port, when commands, which continuously read multiple data, are transmitted from a host side.
FP2−CCU Functions of Computer Communication Unit 1.4 Communication Conditions and Restrictions Relating to Functions A similar restriction also applies if access is being made from another station connected with the link unit. メ イ ン メ ニ ュ ー 51 ∼ ∼ ∼ ∼ 5 3時 M 照明制御を選択 A 空調制御 館内掲¦ 板 ∼∼ ∼ L ∼ ∼ ∼ ∼ ∼ Unit No. 1 (source station) Power CPU CCU CCU supply MW Unit No.
Chapter 2 Names and Functions of Parts 2.1 Names and Functions of Parts . . . . . . . . . . . . . . . . . . . . 2 − 3 2.1.1 Names and Functions of Parts . . . . . . . . . . . . 2 − 3 2.1.2 Operating Status LEDs . . . . . . . . . . . . . . . . . . . 2 − 4 2.1.3 COM.1 and COM.2 Ports (9 Pins) . . . . . . . . . . 2 − 5 2.1.4 Transmission Format Setting Switch . . . . . . .
Names and Functions of Parts 2−2 FP2−CCU
FP2−CCU Names and Functions of Parts 2.1 Names and Functions of Parts 2.1 2.1.1 Names and Functions of Parts Names and Functions of Parts Front Back 1 Operating status LEDs This displays the operating status of the unit, such as communication conditions and error/alarm situations. 2 COM.1 port (RS232C) and COM.2 port (RS232C) These ports are used to connect the RS232C connector of an RS232C device such as a personal computer or display panel, using a shielded cable.
FP2−CCU Names and Functions of Parts 2.1 Names and Functions of Parts 2.1.2 Operating Status LEDs These display the operating status of the unit, such as communication conditions and error/alarm situations. Display Operation ALARM (red) Lighted: Unit error (lights on watchdog timer error) Not lighted: Goes out when there is no error COM.
FP2−CCU Names and Functions of Parts 2.1 Names and Functions of Parts 2.1.3 COM.1 and COM.2 Ports (9 Pins) These are used to connect the RS232C connector of an RS232C device such as a personal computer or display panel, using a shielded cable. Pin layout Pin No.
FP2−CCU Names and Functions of Parts 2.1 Names and Functions of Parts 2.1.4 Transmission Format Setting Switch These switches are used to set the transmission speed (baud rate) and character bit for the COM.1 and COM.2 ports. The values set by these switches are automatically reflected when the power supply is turned on. For COM. 1 port For COM. 2 port Data (bit position) Port 1 COM.
Chapter 3 Confirming Unit Settings and Design Contents 3.1 Setting the Transmission Speed (Baud Rate) and Transmission Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 − 3 3.1.1 3.2 Transmission Format Setting Using Switch . . 3 − 3 Confirming the I/O Allocation and Root No. . . . . . . . . . 3 − 5 3.2.1 I/O Allocation . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 − 5 3.2.2 Confirming Root No. . . . . . . . . . . . . . . . . . . . . .
Confirming Unit Settings and Design Contents 3−2 FP2−CCU
FP2−CCU Confirming Unit Settings and Design Contents 3.1 Setting the Transmission Speed (Baud Rate) and Transmission Format 3.1 Setting the Transmission Speed (Baud Rate) and Transmission Format When using the Computer Communication Unit to carry out serial communication with an external device, the transmission speed (baud rate) and transmission format must be set ahead of time to match those of the external device that will be serving as the partner station.
Confirming Unit Settings and Design Contents FP2−CCU Note The No. 1 and No. 5 transmission format setting switches are reserved for system use. These are set to “on” when the unit is shipped from the factory, and should be left at that setting. The transmission format setting switches are located on the back of the unit.
FP2−CCU Confirming Unit Settings and Design Contents 3.2 3.2 Confirming the I/O Allocation and Root No. Confirming the I/O Allocation and Root No. 3.2.1 I/O Allocation A 16 points (16SE) I/O number is automatically allocated to the slot in which the Computer Communication Unit is installed. This can be changed to 0 point (0SE) if desired, using tool software. Computer Communication Unit CCU SD RD ERR SD RD ERR AL COM.2 COM.
FP2−CCU Confirming Unit Settings and Design Contents 3.2 Confirming the I/O Allocation and Root No. 3.2.2 Confirming Root No. If multiple Computer Communication Units have been installed, they are labeled “Root No. 1”, “Root No. 2”, and “Root No. 3” in sequential order, starting from the unit closest to the CPU unit.
Chapter 4 RS232C Port Wiring 4.1 RS232C Port Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 − 3 4.2 Wiring between RS232C Ports . . . . . . . . . . . . . . . . . . . . 4 − 5 4.2.1 Connecting to a Personal Computer . . . . . . . . 4 − 5 4.2.2 Connections with Operation Display Panel . . 4 − 6 4.2.3 Connections with RS232C Devices . . . . . . . . 4 − 7 4.2.4 Modem Connections . . . . . . . . . . . . . . . . . . . . .
RS232C Port Wiring 4−2 FP2−CCU
FP2−CCU RS232C Port Wiring 4.1 4.1 RS232C Port Signals RS232C Port Signals Pin layout Pin No.
RS232C Port Wiring 4.1 FP2−CCU RS232C Port Signals CD (Receive Carrier Detect) This signal goes on when the reception signal is within the specified range. With the FP2 Computer Communication Unit, input to this terminal is invalid, so no connections are necessary. ER (Equipment Ready) This signal notifies the partner device that the Computer Communication Unit is ready for operation. The ER signal of the Computer Communication Unit is constantly on.
FP2−CCU RS232C Port Wiring 4.2 Wiring between RS232C Ports 4.2 Wiring between RS232C Ports The Computer Communication Unit and RS232C devices should be connected using shielded cables. 4.2.1 Connecting to a Personal Computer An RS232C cable (Product No. AFB85853) is available for making connections to a personal computer. AFB85853 (Crossing cable: 9−pin external — 9−pin internal) Dimension 2 1 6 1 1 6 M2.6 screws M2.6 screws 3000100/118.113.937 (unit: mm/in.
FP2−CCU RS232C Port Wiring 4.2 Wiring between RS232C Ports 4.2.2 Connections with Operation Display Panel An RS232C cable (Product No. AFB85813) is available for making connections to an operation display panel that has a D−sub 25−pin connector. AFB85813 (Crossing cable: 9−pin external — 25−pin external) Dimension 2 1 13 25 1 6 M2.6 screws 3000100/118.113.937 M2.6 screws (unit: mm/in.) Wiring diagram D−sub 9−pin external PLC side 1 Signal name Pin No.
FP2−CCU RS232C Port Wiring 4.2 Wiring between RS232C Ports 4.2.3 Connections with RS232C Devices Connections with an RS232C device that has a D−sub 9−pin connector should be made as follows. Computer Communication Unit side Pin No. Mnemonic RS232C side (9−pin) Pin No.
FP2−CCU RS232C Port Wiring 4.2 Wiring between RS232C Ports 4.2.4 Modem Connections An RS232C cable (Product No. AFB85843) is available for making connections to a modem. AFB85843 (Straight cable for modem connection: 9−pin external — 25−pin external) Dimension 2 1 6 13 25 1 M2.6 screws 3000100/118.113.937 M2.6 screws (unit: mm/in.) Wiring diagram D−sub 9−pin external PLC side D−sub 25−pin external 1 2 Modem side Signal name Pin No. (Mnemonic) Signal name (Mnemonic) Pin No.
Chapter 5 Troubleshooting 5.1 5.2 Operation if an Error Occurs . . . . . . . . . . . . . . . . . . . . . . 5 − 3 5.1.1 If the ALARM LED on the Computer Communication Unit Lights . . . . . . . . . . . . . . . 5 − 3 5.1.2 If the ERROR LED on the Computer Communication Unit Lights . . . . . . 5 − 4 What to Do if an Error Occurs . . . . . . . . . . . . . . . . . . . . . 5 − 5 5.2.1 If the ALARM LED on the Computer Communication Unit Lights . . . . . . . . . . . . . . . 5 − 5 5.2.
Troubleshooting 5−2 FP2−CCU
FP2−CCU Troubleshooting 5.1 5.1 5.1.1 Operation if an Error Occurs Operation if an Error Occurs If the ALARM LED on the Computer Communication Unit Lights What the ALARM LED does The ALARM LED on the Computer Communication Unit lights if the watchdog timer in the unit is activated, to warn of a problem. CCU ALARM LED CCU SD RD ERRSD RD ERR ALARM COM.1 COM.2 CPU unit operation when the ALARM LED lights The ERROR LED on the CPU unit lights, and operation stops.
FP2−CCU Troubleshooting 5.1 Operation if an Error Occurs 5.1.2 If the ERROR LED on the Computer Communication Unit Lights What the ERROR LED does The ERROR LED on the Computer Communication Unit lights there is a problem with communication between the unit and the external device. There are two ERROR LEDs, ERR1 and ERR2, for each channel. CCU ERROR LED CCU SDRDERRSD RD ERRALARM COM.1 COM.2 Operation of the unit continues even if the ERROR LED lights.
FP2−CCU Troubleshooting 5.2 5.2 5.2.1 What to Do if an Error Occurs What to Do if an Error Occurs If the ALARM LED on the Computer Communication Unit Lights Situation The watchdog timer is activated to alert the user of a problem with the Computer Communication Unit. Solution Turn the power supply off and then on again. If the LED lights again, there may be a problem with the unit.
Troubleshooting 5.2 5.2.3 FP2−CCU What to Do if an Error Occurs Communication is Inhibited Situation There is a possibility that the cables have not been connected correctly. Solution If using the unit for the first time, there is a possibility that the cables have been connected incorrectly. Check the connector wiring diagram and check for conductivity, using a tester. For information on wiring and connections, please check “Chapter 4 RS232C Port Wiring”. 5.2.
Chapter 6 Specifications 6.1 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 − 3 6.2 Table of MEWTOCOL Command . . . . . . . . . . . . . . . . . . 6 − 4 6.2.1 6.3 MEWTOCOL−COM Commands . . . . . . . . . . . 6 − 4 Table of MEWTOCOL−COM Error Code . . . . . . . . . . . .
Specifications 6−2 FP2−CCU
FP2−CCU Specifications 6.1 6.1 Specifications Specifications General Specifications Item Specifications Ambient temperature 0 to 55 °C/32 to 131 °F Storage temperature –20 to +70 °C/– 4 to + 158°F Ambient humidity 30 to 85 % RH (at 25°C non−condensing) Storage humidity 30 to 85 % RH (at 25°C non−condensing) Vibration resistance 10 to 55 Hz, 1 cycle/min.: double amplitude 0.75 mm (0.03 in.), 10 min. on 3 axes Shock resistance Min.
FP2−CCU Specifications 6.2 6.2 Table of MEWTOCOL Command Table of MEWTOCOL Command The following is a table of MEWTOCOL commands that can be used with the FP2 Computer Communication Unit. 6.2.
FP2−CCU Specifications 6.3 6.3 Table of MEWTOCOL−COM Error Code Table of MEWTOCOL−COM Error Code 21 Data Error: • Situation A data error occurred during communication. There are three types of data errors: parity errors, framing errors, and unit receive buffer errors. • Example of error This occurs if the communication format between the host computer side and the PLC side is different.
FP2−CCU Specifications 6.3 Table of MEWTOCOL−COM Error Code 27 Frame Over Error: • Situation The command and response exceed 118 bytes. • Example of error This occurs when a WD command is sent, if the data being sent at one time exceeds 118 bytes. • ERR LED on the FP2 Computer Communication Unit Lights 40 BCC Error: • Situation Transmission error occurred in command data. • Example of error This occurs if the calculation value of the BCC added to the command being sent is erroneous.
FP2−CCU Specifications 6.3 Table of MEWTOCOL−COM Error Code 43 Procedure Error: • Situation The PLC side sent a different command while waiting for a send request message. • Example of error This occurs when a command consisting of multiple frames is sent, if the delimiter “&” that indicates that the command is a continuation of the previously sent command is missing.
FP2−CCU Specifications 6.3 Table of MEWTOCOL−COM Error Code 61 Data Error: • Situation There is an error in the contact number and/or data number specification. There is an error in the decimal or hexadecimal format specification for the data. • Example of error This occurs if the data register specification is in hexadecimal format when an RD command is sent.
FP2−CCU Specifications 6.3 Table of MEWTOCOL−COM Error Code 66 Address Error: • Situation There is an error in an address specification, such as in the program address. There is an error in the decimal or hexadecimal format specification for the data. • Example of error This occurs if a program address is specified that is larger than the unit side, when an RP command is sent.
Specifications 6.
Record of changes Manual No. Date Description of changes ARCT1F319E/ ACG-M319E MAR.2001 First edition ARCT1F319E-1/ ACG-M319E-1 NOV.2006 Second edition ARCT1F319E-2/ ACG-M319E-2 NOV.2008 Third eidition - Change in Corporate name ARCT1F319E-3 AUG.
Record of changes R−2 FP2−CCU