Panasonic FP2 Series Manuale utente

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.

-Always take precautions to ensure the overall safety of your system, so that the whole

system remains safe in the event of failure of this product or other external factor.

-Do not use this product in areas with inflammable gas. It could lead to an explosion.

-Exposing this product to excessive heat or open flames could cause damage to the lithium

battery or other electronic parts.

CAUTION

If critical situations that could lead to user’s injury or only property damage is

assumed by mishandling of the product.

-To prevent excessive exothermic heat or smoke generation, use this product at the values

less than the maximum of the characteristics and performance that are assured in these

specifications.

-Do not dismantle or remodel the product. It could cause excessive exothermic heat or smoke

generation.

-Do not touch the terminal while turning on electricity. It could lead to an electric shock.

-Use the external devices to function the emergency stop and interlock circuit.

-Connect the wires or connectors securely.

The loose connection could cause excessive exothermic heat or smoke generation.

-Do not allow foreign matters such as liquid, flammable materials, metals to go into the inside

of the product. It could cause excessive exothermic heat or smoke generation.

-Do not undertake construction (such as connection and disconnection) while the power

supply is on. It could lead to an electric shock.

-This manual and its contents are copyrighted.

-You may not copy this manual, in whole or part, without written consent of Panasonic Electric

Works SUNX Co., Ltd.

-Windows is a registered trademark of Microsoft Corporation in the United States and other

countries.

-All other company names and product names are trademarks or registered trademarks of

their respective owners. PLC_ORG

Table of ContentsFP2−CCU

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. 1 −3..............................................

1.2 Unit Operation 1 −4....................................................

1.2.1 Operation Overview 1 −4........................................

1.3 Restrictions on Units Combination 1 −6...................................

1.3.1 Restrictions on Current Consumption 1 −6........................

1.3.2 Restrictions on Installation Position 1 −6..........................

1.3.3 Restrictions on Number of Units that can be Installed 1 −7...........

1.4 Communication Conditions and Restrictions Relating to Functions 1 −8.......

1.4.1 Precautions when Using the FP2 CPU Unit−11−8.................

1.4.2 Precautions when Using the FP2 CPU Unit−21−9.................

Chapter 2 Names and Functions of Part

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 2 −6.........................

Chapter 3 Confirming Unit Settings and Design Contents

3.1 Setting the Transmission Speed (Baud Rate) and Transmission Format 3 −3..

3.1.1 Transmission Format Setting Using Switch 3 −3....................

3.2 Confirming the I/O Allocation and Root No. 3 −5...........................

3.2.1 I/O Allocation 3 −5.............................................

3.2.2 Confirming Root No. 3 −6.......................................

FP2−CCUTable of Contents

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 4 −8.......................................

Chapter 5 Troubleshooting

5.1 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....................................................

5.2 What to Do if an Error Occurs 5 −5.......................................

5.2.1 If the ALARM LED on the Computer Communication Unit

Lights 5 −5....................................................

5.2.2 If the ERROR LED on the Computer Communication Unit

Lights 5 −5....................................................

5.2.3 Communication is Inhibited 5 −6.................................

5.2.4 If an Error Response is Returned to the Host Side 5 −6.............

Chapter 6 Specifications

6.1 Specifications 6 −3.....................................................

6.2 Table of MEWTOCOL Command 6 −4....................................

6.2.1 MEWTOCOL−COM Commands 6 −4.............................

6.3 Table of MEWTOCOL−COM Error Code 6 −5..............................

Record of changes R−1..............................................

Interchangeability with the FP3 and PrecautionsFP2−CCU

iii

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. The settings for the parity, the stop bit

length, and whether or not the CS and CD control signals are effective are fixed as shown

in the table below.

−There is no reset switch.

The FP2 Computer Communication Unit has no reset switch.

−Connections with serial devices are made in the same way for both units.

The specifications for the RS232C interface of the FP2 Computer Communication Unit

are the same as those for the FP3.

−Two ports are provided, a “COM.1” port and a “COM.2” port.

However, the COM.1 port is restricted on the functions as below.

COM.1 COM.2

Computer link function Available Available

Modem connection Not available Available

Data transmission Not available Available

Hierarchy command Not available Available

Software interchangeability

The software is interchangeable between the FP2 and FP3 Computer Communication

Units.

−Program methods on the host side are largely the same.

There are some differences in the transmission formats, as described below.

FP2−CCUInterchangeability with the FP3 and Precautions

Comparison of specifications between the FP2 and FP3 Computer

Communication Units

Setting item Set value FP2 FP3

No. of ports — 2 ports 1 port

Transmission speed (Baud rate) 19,200 bits/s φ φ

9,600 bits/s φ φ

4,800 bits/s φ φ

2,400 bits/s — φ

1,200 bits/s — φ

600 bits/s — φ

300 bits/s — φ

Transmission speed (Baud rate)

when

modem

connected

9,600 bits/s φ—

when modem is connected 2,400 bits/s — φ

Character bit 7−bit φ φ

8−bit φ φ

Parity None — φ

Odd φ φ

Even — φ

Stop bit 1−bit φ φ

2−bit — φ

Control signals CS and CD Invalid φ φ

Valid — φ

Reset switch — None Provided

φ: Default setting, or can be set using DIP switches

—: Cannot be set

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. 1 −3............................

1.2 Unit Operation 1 −4..................................

1.2.1 Operation Overview 1 −4......................

1.3 Restrictions on Units Combination 1 −6.................

1.3.1 Restrictions on Current Consumption 1 −6.......

1.3.2 Restrictions on Installation Position 1 −6........

1.3.3 Restrictions on Number of Units that can be

Installed 1 −7................................

1.4 Communication Conditions and Restrictions

Relating to Functions 1 −8............................

1.4.1 Precautions when Using the

FP2 CPU Unit−11−8........................

1.4.2 Precautions when Using the

FP2 CPU Unit−21−9........................

FP2−CCUFunctions of Computer Communication Unit

1−2

Functions of Computer Communication UnitFP2−CCU

1−3

1.1 Functions and Features

1.1.1 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.

Host computer

(Personal computer)

Operation

display panel

RS232C

Can be connected to a display panel and computer.

Enables a 1:1 connection to a display panel and computer. No software program is

needed for communication.

Economical peer−to−peer communication with a personal computer is possible.

This unit can be directly connected with a personal computer through RS232C to collect

and write data from it without building up a large−scale network.

One unit is equipped with two ports.

One unit is equipped with two RS232C interface ports.

No communication program is needed on the PLC. (Computer link function)

The PLC automatically returns responses using the FP series’ MEWTOCOL

communication protocol so that there is no need to prepare a communication program

at the side of the PLC.

Connection with modem (Only COM. 2)

It is possible to receive data over telephone lines from another PLC, by connecting

modem with your PLC. (Receiving only)

1.1.2 Unit Part No.

Name Part No.

Computer Communication Unit FP2−CCU

Two D−sub connectors (9−pin) are provided as accessories with the unit.

FP2−CCU

Functions of Computer Communication Unit

1−4

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.

Programs for host side devices such as computers and display panels are created in

accordance with the protocol “MEWTOCOL”.

More than 20 types of commands are available, including commands for reading and

writing the data area and contacts, etc.

No program is necessary on the PLC side in order to carry out communication.

Example:

When the contents of the data registers are read to a host

computer:

照

明

制

御51

時

を

選

択

空

調

制

御館

内

掲

¦板

メ

イ

ン

メ

ニ

ュ

ー

L〜

〜

〜〜

〜

〜〜

〜

Display panel

Computer

Response

Command

DT2

DT1

DT0

%01#RDD0000000001**CR

%01$RD05000A0062CR

RS232C

The display panel for the FP series was designed ahead of time in confor-

mance with the MEWTOCOL communication protocol, so there is no need

to take the contents of commands into consideration.

Tip

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