Panasonic FP2 Series User manual
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.
Copyright / Trademarks
-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
i
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
ii
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
iv
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
is
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 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 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
5
3
時
AM
を
選
択
空
調
制
御館
内
掲
¦板
メ
イ
ン
メ
ニ
ュ
ー
L〜
〜
〜
〜〜
〜〜
〜
〜〜
〜
〜
Display panel
Computer
Response
Command
10
3
5
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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