Panasonic FP2 Series User manual

PROGRAMMABLE CONTROLLER
FP2 Multi-wire Link Unit
Technical Manual
ARCT1F302E-2
2008.11

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.,Ltd.
-Windows and Windows NT are registered trademarks of Microsoft Corporation in the
United States and/or other countries.
-All other company names and product names are trademarks or registered
trademarks of their respective owners.
-Matsushita Electric Works,Ltd. pursues a policy of continuous improvement of the
Design and performance of its products, therefore,we reserve the right to change the manual/
product without notice.
BNTN

Table of Contents FP2 Multi-wire Link Unit
ii
Table of Contents
Before You Start v......................................................
Chapter 1 General Specifications
1.1 How the Multi-wire Link Unit Works 1 - 3.................................
1.1.1 MEWNET-W Mode 1 - 4.........................................
1.1.2 MEWNET-W2 Mode 1 - 5........................................
1.1.3 MEWNET-F Mode 1 - 6.........................................
1.2 Specifications 1 - 8....................................................
1.2.1 General Specifications 1 - 8......................................
1.2.2 Transmission Specifications 1 - 9.................................
1.2.3 Performance Specifications 1 - 10.................................
1.2.3.1 W and W2 Modes 1 - 10................................
1.2.3.2 F Mode 1 - 11.........................................
1.2.4 Transmission Cable Specifications 1 - 12...........................
1.3 Restrictions When Combinations Are Used 1 - 14..........................
1.3.1 Restrictions on the CPU 1 - 14....................................
1.3.2 Restrictions on the Installation Position 1 - 14.......................
1.3.3 Restrictions on the Number of Units that can be Installed 1 - 15.......
1.4 Confirming the Design Contents 1 - 16...................................
1.4.1 Confirming the Current Consumption 1 - 16.........................
1.4.2 Confirming I/O Allocations 1 - 16..................................
1.4.3 Confirmation When Multiple Units are Installed 1 - 17................
Chapter 2 Parts and Its Functions
2.1 Parts Terminology 2 - 3................................................
2.1.1 Status Indicator LEDs 2 - 5.......................................
2.1.2 Slave Station Number Display Selector Switch 2 - 6.................
2.2 Switch Settings 2 - 7...................................................
2.2.1 Station Number Selector 2 - 7....................................
2.2.2 Mode Selector Switches (1) 2 - 8..................................
2.2.3 Mode Selector Switches (2) 2 - 9..................................
Chapter 3 Wiring
3.1 Wiring 3 - 3..........................................................
3.1.1 Transmission Cable Wiring 3 - 3..................................
3.1.2 Crimp Terminal Specifications 3 - 4................................

Table of Contents
FP2 Multi-wire Link Unit
iii
Chapter 4 MEWNET-W Mode
4.1 W Mode Functions 4 - 3................................................
4.1.1 PC Link Function 4 - 3...........................................
4.1.2 Data Transfer Function 4 - 3......................................
4.1.3 Remote Programming Function 4 - 3...............................
4.2 PC Link 4 - 4.........................................................
4.2.1 Preparing to Use PC Link 4 - 4....................................
4.2.2 Link Area Allocations 4 - 4.......................................
4.2.3 Link Area Allocation Example 4 - 5................................
4.2.4 Sample PC Link Program 4 - 8....................................
4.2.5 Precautions When Allocating Link Areas 4 - 10......................
Appendix A What to Check If a Problem Occurs
A.1 If the CPU ERROR LED Lights 5 - 3.....................................
A.2 Confirming the Mode Being Used 5 - 4...................................
A.3 What to Check When the ERR LED Is Lighted or Blinking 5 - 5..............
A.4 What to Do If a Transmission Error Occurs 5 - 6...........................
Appendix B Dimensions
Index i-1................................................................
Record of changes R-1...............................................

Before You Start FP2 Multi-wire Link Unit
iv
Before You Start
CPU Versions Supported
This unit supports CPU Ver. 1.05 and subsequent versions. Confirm the version on the
side panel seal on the CPU, or on the [STATUS DISPLAY] in the [MONITOR] menu of
the NPST-GR.
Selecting Cables
Cables which can be used with this unit vary depending on the mode being used. For
information on cable connections, refer to section 3.1.
Mode Cables used
MEWNET-W
MEWNET-W2 Twisted pair cable
MEWNET-F Twisted pair cable, VCTF cable
About Selecting MEWNET-W2
In order to use the FP2 Multi-wire link unit in MEWNET-2 mode, the user must write
a program on a level of about 300 steps. Proceed only after carefully going over the
specifications.
Please inquire about more detailed materials regarding MEWNET-W2.

Before You Start
FP2 Multi-wire Link Unit
v
Reference Manuals
The following reference manuals are available for use with this unit, and should be
used in conjunction with this manual.
Manual name Manual number Description
FP2 Hardware
manual ARCT1F298E This introduces the hardware configuration, wiring
methods, I/O allocation, maintenance methods, and
other information pertaining to the FP2 series.
FP3/FP5 W TYPE
(WIRE) LINK
SYSTEM Manual ACG-M0032
This introduces the hardware configuration, wiring
methods, I/O allocation, maintenance methods, and
other information pertaining to the MEWNET-W.
Refer to this manual when using the MEWNET-W
mode.
FP3/FP5
REMOTE I/O
SYSTEM Manual ACG-M0028
This introduces the hardware configuration, wiring
methods, I/O allocation, maintenance methods, and
other information pertaining to the MEWNET-F.
Refer to this manual when using the MEWNET-F
mode.

Chapter 1
General Specifications
1.1 How the Multi-wire Link Unit Works 1 - 3........
1.1.1 MEWNET-W Mode 1 - 4...............
1.1.2 MEWNET-W2 Mode 1 - 5..............
1.1.3 MEWNET-F Mode 1 - 6................
1.2 Specifications 1 - 8............................
1.2.1 General Specifications 1 - 8............
1.2.2 Transmission Specifications 1 - 9........
1.2.3 Performance Specifications 1 - 10.......
1.2.3.1 W and W2 Modes 1 - 10........
1.2.3.2 F Mode 1 - 11.................
1.2.4 Transmission Cable Specifications 1 - 12.
1.3 Restrictions When Combinations Are Used 1 - 14.
1.3.1 Restrictions on the CPU 1 - 14..........
1.3.2 Restrictions on the Installation
Position 1 - 14........................
1.3.3 Restrictions on the Number of Units
that can be Installed 1 - 15.............
1.4 Confirming the Design Contents 1 - 16...........
1.4.1 Confirming the Current
Consumption 1 - 16...................
1.4.2 Confirming I/O Allocations 1 - 16........
1.4.3 Confirmation When Multiple Units are
Installed 1 - 17........................

General Specifications FP2 Multi-wire Link Unit
1-2

General SpecificationsFP2 Multi-wire Link Unit
1-3
1.1 How the Multi-wire Link Unit Works
1.1 How the Multi-wire Link Unit Works
An overview of the multi-wire link unit
The following functions can be accessed with a single FP2 Multi-wire link unit
(FP2-MW), by changing the positions of the mode selector switches (2).
DMEWNET-W network: Hereafter referred to as the W mode.
DMEWNET-W2 network: Hereafter referred to as the W2 mode.
DMEWNET-F network: Hereafter referred to as the F mode.
Name Order number
FP2 Multi-wire link unit FP2-MW

General Specifications FP2 Multi-wire Link Unit
1-4
1.1 How the Multi-wire Link Unit Works
1.1.1 MEWNET-W Mode
A system can be configured economically between programmable controllers,
using twisted pair cables.
Link communication can be carried out between various programmable controllers, us-
ing link relays and link registers.
Communication is possible with conventional FP series devices capable of using the
MEWNET-W.
ThelinkrelaysandlinkregistersusedforPCLinkcommunicationarespecifiedusingthe
system register.
FP2 Multi-wire link unit
(W mode)
FP-C and
MEWNET-W type
link board
Twisted pair cable
FP3 and
MEWNET-W
type link unit
FP10SH and
MEWNET-W type
link unit
FP2 Multi-wire link
unit (W mode)
Specifications
Item Description
Communication method Token bus
Transmission method Baseband transmission
Communication path Twisted pair cable
Transmission distance Total length: 800 m/2,625 ft.
Transmission speed
(Baud rate) 500 kbps
Functions/number of PC link function: max. 16 stations
/
stations Data transfer function: max. 32 stations
PC link capacity per one Link relay: 1,024 points
py
p
unit Link register: 128 words
Other functions Remote programming
Interface Conforming to RS485
R.A.S. function Hardware self-diagnostic function

General SpecificationsFP2 Multi-wire Link Unit
1-5
1.1 How the Multi-wire Link Unit Works
1.1.2 MEWNET-W2 Mode
Large volumes of data can now be transmitted over long distances.
Linkcommunicationcan becarriedoutbetweenvarious FP2units, usinglink relaysand
link registers.
Communication limited to only FP2 units is possible.
Using the MEWNET-W mode increases the volume of data that can be handled.
UsingtheMEWNET-Wmodeextendsthetransmissiondistance(whensetto250kbps).
Thelink relayandlinkregister areas usedforPClink communicationarespecifiedusing
user programs.
Twisted pair cable
FP2 Multi-wire link
unit (W2 mode) FP2 Multi-wire link unit (W2 mode) FP2 Multi-wire link unit (W2 mode)
Specifications
Item Description
Communication method Token bus
Transmission method Baseband transmission
Communication path Twisted pair cable
Transmission at 250 kbps Total length: 1200 m/3,937 ft.
distance at 500 kbps Total length: 800 m/2,625 ft.
Transmission speed
(Baud rate) 500 kbps or 250 kbps
Functions/number of PC link function: max. 32 stations
/
stations Data transfer function: max. 32 stations
PC link capacity per one Link relay: 4,096 points
py
p
unit Link register: 4,096 words
Other functions Remote programming
Interface Conforming to RS485
R.A.S. function Hardware self-diagnostic function
.Note
When using the PC Link in the MEWNET-W2 mode, the default
settings must be obtained from the user program.

General Specifications FP2 Multi-wire Link Unit
1-6
1.1 How the Multi-wire Link Unit Works
1.1.3 MEWNET-F Mode
Dual-core cables reduce the amount of wiring in the remote I/O system.
Remote I/O control is possible, using the FP2 as the master station.
Communicationwithconventionalslavestationsispossible,usingtheFP2asthemaster
station.
Commercially
available manifold
solenoid valve
Master station
FP2 Multi-wire link unit
(F mode)
Slave station
FP3 MEWNET-F
(remote I/O) slave unit
FP1 I/O link unit
I/O terminal unit
Twisted pair cable/VCTF cable
I/O terminal board
FP0 and FP-M can also be connected
using slave station units or boards.

General SpecificationsFP2 Multi-wire Link Unit
1-7
1.1 How the Multi-wire Link Unit Works
Specifications
Item Description
Communication method Two-line, half-duplex transmission
Synchronization method Start-stop synchronous system
Communication path Twisted pair cable or VCTF cable
Transmission distance Total distance: max. 700 m/2,296.59 ft
Transmission speed
(Baud rate) 500 kbps
Number of slave stations Max. 32 stations
Controllable I/O points Max. 2,048 points
Interface Conforming to RS485
Transmission error check CRC (Cyclic Redundancy Check) method
.Note
The user should avoid mixing different types of transmission
cables in a single network. The same type of transmission cable
should be used throughout the network.

General Specifications FP2 Multi-wire Link Unit
1-8
1.2 Specifications
1.2 Specifications
1.2.1 General Specifications
Item Descriptions
Ambient temperature 0to55qC/32 to 131 qF
Storage temperature -20 to +70 qC/-4 to +158 qF
Ambient humidity 30 to 85 % RH (non-condensing)
Storage humidity 30 to 85 % RH (non-condensing)
Breakdown voltage 500 V AC, 1 minute between external terminal and frame
ground terminal
Insulation resistance 100 MΩor more (measured with a 500 V DC megger testing)
between external terminal and frame ground terminal
Vibration resistance 10 to 55 Hz, 1 cycle/min: double amplitude of 0.75 mm/
0.030 in., 10 min on 3 axes
Shock resistance 98 m/s2or more, 4 times on 3 axes
Noise immunity 1,000 Vp-p with pulse widths 50 ns and 1 μs
(based on in-house measurements)
Operating conditions Free from corrosive gases and excessive dust
Current consumption 220 mA or less (at 5 V DC) (*Note)
Weight Approx. 110 g/3.880 oz
.Note
For information concerning restrictions on current consumption,
refer to section 1.4.1.

General SpecificationsFP2 Multi-wire Link Unit
1-9
1.2 Specifications
1.2.2 Transmission Specifications
Item Descriptions
W mode W2 mode F mode
Communication method Token bus method Polling method
Transmission method Baseband transmission method
Transmission speed
(Baud rate) 500kbps 500kbps/250kbps 500kbps
Transmission distance
(*section 1.2.4) Overall distance:
max. 800m/2,625
ft.
Overall distance:
max.
1200m/3,937 ft.
(at 250 kbps)
800m/2,625 ft.
(at 500 kbps)
Overall distance:
max.
700m/2,296.58 ft.
Number of slave stations Max. 32 stations One master unit
and max. 32 slave
stations
Error check method CRC (Cyclic Redundancy Check) method
Synchronized method Start-stop synchronous system
Interface Conforming to RS485
Communication path Twisted pair cable Twisted pair cable,
VCTF cable
RAS function Hardware self-diagnostic function

General Specifications FP2 Multi-wire Link Unit
1-10
1.2 Specifications
1.2.3 Performance Specifications
1.2.3.1 W and W2 Modes
Item Specification
W mode W2 mode
Communication functions PC link
Computer link
Data transfer
Remote programming
Hierarchical link
Functions/number of PC link Max. 16 stations Max. 32 stations
/
stations Other
functions Max. 32 stations
PC link Area of
use Link
relays Fixed at WL Set by selecting among
WL, WR, LD, DT and FL.
Link
registers Fixed at LD
,
,
,
(*Note)
Setting method Specified using system
register. Specified using user program.
Capacity Link
relays Max. 1,024 points Max. 4,096 points (*Note)
Link
registers Max. 128 words Max. 4,096 words (*Note)
Movement
status/
error alert
Area of use Special internal relays
Special data registers Special internal relays Special data registers
Detailed information is
output to WL, WR, LD,
DT, or FL, depending on
the setting.
Setting method —Specified using F145
(SEND)/P145 (PSEND)
instruction.
Data transfer capacity Max. 16 words Max. 1,020 words
.Note
Use a program to keep WL, WR, LD, DT and FL settings within the
PC link capacity.

General SpecificationsFP2 Multi-wire Link Unit
1-11
1.2 Specifications
1.2.3.2 F Mode
Item Specification
Controllable points per one CPU Max. 2,048 points
Controllable points per one unit Max. 2,048 points
Controllable slots per one CPU Max. 128 slots
Controllable slots per one unit Max. 64 slots
Controllable master units per one CPU Max. 4 units

General Specifications FP2 Multi-wire Link Unit
1-12
1.2 Specifications
1.2.4 Transmission Cable Specifications
The user should avoid mixingdifferent types of transmission cables in a single network.
The same type of transmission cable should be used throughout the network.
Table of cables
Trans-
ii
Sectional
i
Specification Guaranteed transmission distance
mission
cable
view
p
W mode W2 mode F mode
cable
500kbps 250kbps
Shielded
twisted
pair
Conduc-
tor Size Min. 1.25 mm2
(AWG16 or more)
pair
cable Resistance Max. 16.8 Ω/km
(at 20 qC/ 68 qF)
700 m/
2,296.59
ft
Insulator Material Polyethylene 800 m/
2 625
ft
800 m/
2 625
ft
1200 m/
3 937
ft
ft
.
(300 m/
Thickness Max. 0.5 mm/
0.020 in.
2
,
625
ft
.
2
,
625
ft
.
3
,
937
ft
.
(
/
984.25 ft.)
(
*
Note
2)
Fi
g
.1 Cable diameter Approx. 8.5 mm/
0.335 in.
(
*
N
o
t
e
2)
Shielded
twisted
pair
cable
Fig
.
1
below
Coinduc- Size Min. 0.5 mm2
(AWG20 or more)
pair cable
Coinduc
-
tor Resistance Max. 33.4 Ω/km
(at 20 qC/68 qF)
700
m/
700
m/
1
100
m/
600 m/
1,968.50
ft
Material Polyethylene
700
m
/
2,296.59
700
m
/
2,296.59
1
100
m
/
3,617.24
ft
.
(300 m/
Insulator Thickness Max. 0.5 mm/
0.020 in.
,
ft.
,
ft.
,
ft.
(
/
984.25 ft.)
(
*
Note
2)
Cable diameter Approx. 7.8 mm/
0.307 in.
(
*
N
o
t
e
2)
VCTF
cable
(
*
Note
3)
Condiuc-
tor Size Min. 0.75 mm2
(AWG18 or more)
(*Note 3) Resistance Max. 25.1 Ω/km
(at 20 qC/68 qF) 400 m/ 1,312.34
Fig. 2
below Insulator Material Polyvinyl choride
(*Note 1) Not available
,
ft.
(200 m/
656 17
ft )
Thickness Max. 0.6 mm/
0.024 in.
656
.
17
ft
.
)
(*Note 2)
Cable diameter Approx. 6.6 mm/
0.260 in.
(
ote
)
Sectional view of cable
Shield
Fig. 1 Shielded twisted pair cable Fig. 2 VCTF cable
Insulator Conductor
Jacket
Insulator Conductor
Jacket
.next page