Mitsubishi Electric Melsec-k User manual

CONTENTS

................................................

3~5

...

......................................................

7-14

2.1 PerformanceSpecifications

...................................................

Remote

I/O

System

...........................................................

Local Programmable Controller System

........................................

Number of Link Points

.....................................................

2.2

2.3

2.4

ADD

‘.‘DAD

..........................

15-28

3.1

3.3 K3MCPUP2 Hardware.

.....................................................

3.4 KJ71P3andKJ72P5 Hardware

...............................................

List of Equipment

.........................................................

3.2 System Configuration

......................................................

3.5 KOJ

Hardware

..........................................................

3.6 Setting Procedure of IntermittentControl Time

..................................

3.7 IntermittentControl Time

..................................................

3.8 Optical Link Interface

......................................................

3.9 Link Data Flow inOptical Link Loop

...........................................

3.10 Concept of Channel Numbers inOptical Link Loop

...............................

29-58

.....................................................

4.1 Number of Link Points.,

...................................................

4.2 Numberof

I/O

Points

......................................................

4.3

PreparingProcedureof Initial Program for Master Channel (K3NCPUP2)

...............

Preparatiomof initialprogram

.........................................

4.3.1

4.3.2

4.3.3

4.3.4

Data Link Method

Local Programmable Controller System

........................

4.4,1 Specifications of special data registers (D). special temporary memories

(M)

and special functions

(F)

in optical data link system

..........................

4.4.2 Data registers for storingerror channel number

(DA06

DA09)

................

4.4.3 Programminginstructions

.............................................

4.4.4 Programmingmethod of data sending from master to local side

................

4.4.5 Programmingmethodof data sending from local tomaster side

................

4.4.6

4.4.7 Application example of data sending between master and local sides

............

4.4.8 Application circuit example

.................

.........................

Preparingprocedures and comparison of initial programs

for local and remote channels

..........................................

Initialprogram example for remote channel

...............................

Example

remote

I/O

and local programmablecontroller combination

.........

4.4

Repeatedcontinuous data sending method between master and local sides

........

4.5 ProcessTime

.............................................................

4.5.1 Transmissiondelay time

..............................................

4.5.2

X/Y

data flow in remote channels

.......................................

4.5.3

X/Y

data flow in local channel

........................................

.49

4.5.4

data flow

thetime of data

write

..............................

4.5.5 D data flow

thetime of data

read

...............................

Utilizationof Special Units in Optical Data Link Remote

I/O

System

.................

4.6.1 Initialprogram when special units are used in optical data linksystem

...........

4.6.2 Program example for KA62A

(A/D

converter unit) in remote

1/0

system

.........

4.6.3 Program example for KA63A (D/A converter unit) in remote

I/O

system

.........

4.6.4 Program example for KD61 (high-speedcounter unit) in remote

I/O

system

......

4.6

5.1 Operation

Start

...........................................................

5.2 Operation Stop

...........................................................

5.3 Troubleshooting

..........................................................

5.3.1 Troubleshootingchart

................................................

5.3.2 How tofind error location inthe loop

...................................

5.3.3 Instantaneouspower failure of programmable controller power

inoptical data linksystem

.............................................

5.3.4 Master

test

and

slave

test

..............................................

5.3.5 Errors of KJ71P3and KJ72P5

.........................................

5.3.6 Errorsof KOJlP

....................................................

CorrectiveActionsfor Master Programmable Controller (K3NCPUP2)

duringTransmission Designation Errors

........................................

ErrorsduringOptical Data Linkof Master ProgrammableController (K3NCPUP2)

.......

External Failure Numbers

...................................................

Errors of K3NCPU(P2)

.....................................................

5.4

5.5

5.6

5.7

.............................................

ADA

89-90

91 -98

.......................

7.1

7.2

7.3

Cablingbetween Link Units

.................................................

Optical Fiber Cable Construction and Standards

..................................

How

Specify Optical Fiber Cable

...........................................

7.3.1

7.3.2 How tospecify optical fiber cablewith connector

..........................

7.4 Cautions for HandlingOptical Fiber Cable

......................................

7.5 Standardsfor Optical Fiber Cable Application

...................................

7.6 Cab1ing Plan

.............................................................

7.7 Cabling

.................................................................

Layingoptical fiber cables without connector

...............................

Layingoptical fiber cables with connector

................................

Installation

connectors

.............................................

How tospecify optical fiber cable only

...................................

7.7.1

7.7.2

7.7.3

GENERAL DESCRIPTION

GENERALDESCRIPTION..

.......

.....

GENERAL DESCRIPTION

The serial data link system permits data communication between plural programmable controllers

and

1/0

units to reduce wiring works of decentralized, long-distance

1/0

equipment, allow de-

Coaxial data linksystem

centralizedcontrol, and increase the total number

input/outputs.

The

MELSEC-K

series

serial

data link system

available in the type which utilizes coaxial cables

or optical fiber cables for the transmission system. This instruction manual explains about the

specifications, installation, programming, and external wiring of the optical data link system which

utilizesoptical fiber cables.

Optical data link system

Mas

nne1

Local channel

CPU unit K3NCPU

K2CPU-S3

K2HCPU K2NCPU

Link unit KJ71L2

CPU unit

K3NCPU(P2)

KZCPU-S3 KZHCPU KZNCPU KO

Link unit KJ71L3

KOD

K3NCPUP2 (Link unitincorporated)

3emotechannel

CPU unit

KOJl

Link unit KJ72L5 KOD

KJ72P5

Base

unit

Base unitwhich can be used for

CPU unit

I-

K12BN, K15BN, K18BN

K18BE

K12BN, K15BN, K18BN

K18BE

Base unit

Base unitwhich can be used for

CPU unit

I-

Number

I'O

link points

Max.

128

points

Localchannel Max. 51

points for

fya,218&~~~I

Max.

280

point

Remotechannel

channel

for

channel

Max. 480 points intotal for

all

channels

Data register

link

I I

Max. 24 points for 1channel Max. 24 points for 1channel

Number of

points

Max. 2048 points

Master channel

Max. 480 points

Used range

Cabl

Cable length

DO to95 DO to95

Coaxial cable Optical fiber cable

Overall extension length 500m 2km between channels

Maximumnumber of

slave

channels

Communicationmethod Half duplex bitserial Half duplex bitserial

7units

Transmissionprocessing time

(for7 channels

points,

32 points)

32 units

24.8ms 6.5ms

Settingof online/offline

Settingof channel number

Communicationspeed

250KBPS

500KB

Notprovided Provided

Slide switch on printedcircuit board Digital switch on front

CPU

unit

Settingof intermittent

control time Notprovided

ded

Automatic reconnection

function

Not provided Selectable by switch

Table

1.1

Comparison betweenCoaxial Data Link System and Optical Data LinkSystem

[

GENERAL

DESCRIPTION

bIEL8E&K

Coaxial data linksystem

Dataflow

Opticaldata linksystem

channel has been

Cable has been

disconnected.

Influence

of failure

When autorn

reconnect

not selected

After resetting the

slave

channel or

turning on and then off the power,

reset the master channel or turn off

and then on the power.

Data flow

____)

After resetting the

slave

channel or

turning on and then off the power,

reset the master channel or turn

off and then on the power.

When automatic reconnection

function

selected

After the link system

restored,

communication

automatically re-

sumed.

Master

Slave

channel channel channel

ave

channel

Master channel

Slave

channel

-‘e

Slave

channel

Specific

slave

channel

disconnected

from the link system.

Specific

slave

channel and

slave

chan- All channels are disconnected.

nels that follow are disconnectedfrom

the link system.

Provide jumper between

TXD

terminal

and

terminal of master channel

and

all

slave

channels.

Provide means to prevent foreign

material, such

dust, from

entering the sending and receiving

portions of optical fiber cable and

link unit.

Table

1.1

Comparison between Coaxial Data Link System and Optical Data Link System (Continued)

SPECIFICATIONS

....................................................

7-14

Remote

1/0

System

......................................................

Local ProgrammableControllerSystem

......................................

................................................

2.1

PerformanceSpecifications

2.2

2.3

2.4

Numberof

Link

Points

..................................................

SPECIFICATIONS

IlEL8EbK

tern

Communicationspeed

2.1

PerformanceSpecifications

Specifications

500 KBPS

Communicationmethod Semi-doublebit

serial

(Full double bitserial for master

test)

Synchronouscommunication

Frame synchronization

Transmissioncode

Transmissionformat

_____

~~~

Transmissionpath

Looptype pollingmethod

~~ ~~

Transparent code

Conforms to HDLC (Frametype)

________

Max. transmission optical cable length

2 km maximum betweenchannels

Transmission

loss

of optical connector

Number of connectedstations

33 stations maximum (1master channel, 32

slave

channels)

1dB/piece

Transmission

loss

of optical fiber cable

Opticalsending

level

Optical receiving

level

Operatingambienttemperature

Storage ambient temperature

Operatingambient humidity

Error control method

Less

than 3.5 dB/km (ON

0.85pm)

-25 dBm (peak)

-25 to -37 dBm (peak)

to55OC

-10 to75°C

10to90%RH(nodew condensation)

Failsafe function

Disconnectionfunction

Storageambient humidity

CRC (generatingpolynominal: X16

X12

1)and

retry by overtime

10to

90%RH

(nodew condensation)

When error

detected, only

correspondingchannel

disconnected

Forceddisconnection

possibleby switch.

~ ~ ~~ ~~~

Automatic reconnectionfunction

Selection

possibleby'switch.

OD-9475B(NEC), FOJD-PL1-1-125G(JAE)

Opticalconnector

Optical fiber cable Core diameter: 50

3pm

(quartz

glass)

Claddiameter: 125

3pm

Vibration resistance Conformsto Class 3,

IB,

JIS

C0911

(16.7

Hz,

3-mmdouble amplitude, 2 hrs.)

Shock resistance

Operatingambience

Conformsto

JIS

0912 (10

x 3 times inX,

and

directions)

Particularly dust and corrosive

gas

should be minimal.

Table

2.1

PerformanceSpecifications

[

SPECIFICATIONS

IiIELBEBnK

basic base unit)

2.2

Remote

1/0

System

aaster channel

System which allows serial communication

I/O

data between master and remotechannels and is

applied in order to reduce wiring work coats

long distance

I/O.

Maximumnumber

link

points

Configuration

CPU unit

Data link unit

Maximum number

1/0

points

Maximum number

of link units

Number of link

points

Remote

Total numberof

I/O

points

system

Rest

ric

ons

Optical data

link

system (Remote

1/0

system)

-1

,3NCPU

Extensioncable

Optical fiber cable

kmbetweenchannels)

K3NCPUP2(Optical data link card incorporated)

2048 points

total of 32 channels)

2048 points

(total of link points)

32 units

Max.

512

points for

channel,

total of 2048 points for 32 channels

Max. 2048 points

(1)

The following special units cannot be loaded intothe remotechannel:

KN61, KN62, KT61,

KD51

KJ71L7, KJ71L4, KJ71L2,

KJ7

L3, KJ7

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