PLC General

Programmable Logic Controller

General Introduction of LG PLC

▪ Block type PLC

Block type PLC means one unit containing power supply, CPU,and digital I/O parts.

CPUPower supply

Digital I/O

Expanded digital I/O, Analog I/O, Communication, Special module

Wire connection


▪ Module type PLC

Module type PLC consists of embedded slots such as base, powersupply , CPU, digital I/O and ¹special module.

Po

wer

sup

ply

CP

U

Expanded digital I/O, Analog I/O, Communication, Special module

Wire connection

1. Special module contains HSC, PID, and temperature modules.

Dig

ital I/O

An

alog

I/O

Co

mm

un

ication


▪ General feature of LG PLC

LG PLC can be divided into two general product ranges with Master-Kand GLOFA GM Series.

Master-K GLOFA-GM

MK 80sMK 120s

MK 200sMK 300s

GM7GM7U

GM6GM4GMR

Digital I/O

XGT XGO

2005

Block type Module type Redundancy


▪ General feature of LG PLC

Master-K and GLOFA-GM Series use the same base, digital I/O,analog I/O and special modules. (Different CPU module, S/W)

MK300s

MK200s

MK120s

MK80s

GM4

GM6

GM7U

GM7

Digital I/O

Block type Module type

Master-K

- Window based programming: KGLWin - Various product ranges by digital I/O points: 10 ~1,024 - Easy programming tool & cost efficient

▪ General Introduction of Master-K

1024384120

MK300s

MK200s

MK120s

MK80s

51280

capability

I/O points

Block type Module type

Master-K 80s

▪ Overview

- Dedicated CPU • processing speed (0.5 ㎲ /step) • cost-effective solution

- Variety of CPU just fit to your applications • 10/20/30/40/60 I/O types - Built-in functions • PID with Auto-tuning, High-speed Counter, External Interrupt, Pulse Catch, Pulse Output, Input Filters, RS-232C

- Powerful Network • Built-in RS-232C channels( In K7M-DR10S, both RS-232C and RS-422/485 ), RS-232C(for modem), RS-422/485 serial interfaces as option Profibus-DP (slave), DeviceNet (slave) and F-net (master)

Master-K 80s

▪ System Configuration

MAIN UNIT(10/20/30/40/60)

Wire

con

nectio

n

DIGITAL I/O (Exp.) : 6 Input(24Vdc), 4 Output (Relay)

Hybrid Analog I/O ModuleInput : 2Ch, 0-10Vdc, 0-20mA, 12Bit(0-4,000), 0.5% or less(Full scale) Output : 1Ch, 0-10Vdc, 0~20nA, 12 Bit(0~4,000), 0.5% or less(Full scale)

Communication moduleRS-422, RS-232C (for modem) Module including MODBUS(Master/Slave, RTU, ASCII Mode) protocol.

The expansion configuration of MK80 is equal to the one of GM7.

Master-K 80s

▪ Networking application

- Built in Network • Two communication channels using one port • Dedicated mode, MODBUS mode, User mode

- Option unit • RS-232C: For modem connection (dial-up modem, dedicated modem) • RS-422/485: Dedicated mode (High-speed link service, Multi-drop communication) MODBUS mode (Master, Slave, ASCII, RTU mode), User mode (Asynchronous method 9,600 ~ 128,000 bps)

TXD

RTD

RXD

TXD

Main computerOperator Interface

GMWIN S/W

The networking application of MK80 is equal to the one of GM7.

▪ Comparison with competitors

Master-K 80s

MK80s(LG) CPM1A(Omron) FX0N(Mitsubishi) S7-200(Siemens)

Digital I/O 10~80 10~100 24~128 14~128

Processing Speed 0.5µs/step 1.7µs/step 1.6µs/step 1.3~0.8µs/step

Program memory 68K byte 2,048 word 2,000 steps 1~8K steps

High speed counter

1ph: 16KHz, 2ph: 8KHz

1ph: 5KHz, 2ph: 2.5KHZ

1ph: 5KHz, 2ph: 2.5KHz

1ph: 2KHz, 2ph: 20KHZ

Pulse Catch input 0.2ms (8pts) 0.2ms 50µs -

Input Filter 0~15ms (8pts) 1~128ms 1~15ms (8pts) -

External Interrupt 0.4ms (8pts) 0.3ms (2~4pts) 0.3ms (2~4pts) 0.2ms (1~4pts)

Pulse Output 1 2KHZⅹ 1 2.5HZⅹ 1 2HZⅹ -2 4HZⅹ

Memory backup Flash memory Flash memory EEPROM

RTC O X X O

Serial Interface RS-232C: 2CH X X RS-485 ~ Profibus-DP

PID With Auto-tuning X X X

Bu

ilt-in

Master-K 80s

▪ Comparison with competitors

MK80s(LG) CPM1A(Omron) FX0N(Mitsubishi) S7-200(Siemens)

Analog I/O 2 CH/1CH, 12 bit X 2CH/1CH 3CH/2CH, 3CH/1CH

Network RS-422,

RS-232(modem)

RS-232C/422 RS-232C/485 -

Added digital I/O 10 pts 20 pts 8/16 pts 8/16/32 pts

Price 1 1.2~1.4 1.4~1.7 1.4~1.8

Op

tion

al

Master-K 120s

▪ Overview

- Main unit • Economic type: 10/14/20/30 (10/14 points, analog timer 2 points) Total 70 points are available (up to 2 extension module, 1 comm. Module) • Standard type: 20/30/40/60 points DR/DRT types (DRT type for positioning) Total 120 points are available (up to 3 extension module, 1 comm. Module)

- Processing speed ▪ Standard type: 0.1µs/step ▪ Economic type: 0.4 µs/step - Various input handling ▪ Input filter: Delay time can be set from 0ms to 1000ms (8 points unit) ▪ Pulse catch: 10µs (P0, P1), 50µs (P2~P7) ▪ External interrupt: 10µs (P0, P1)

- Improved special functions • High-Speed Counter ▪ Positioning ▪ PID control (Standard type only)

Master-K 120s

▪ Built in functions

-Pulse catch function ▪ Using pulse catch function, a very short pulse signal can be taken as valid input signal which can’t be executed by general digital input.

Min. 10 µs

Time

Input imagedata

Pulse Catch Set (P000X)

10 2 3

4 5 6 7

• Input point 8 points (P000 ~ P007)• Input signal shorter than time can be detected.

Master-K 120s


-Input filter function ▪ An input signal is valid after the setting time after an input filter signal becomes on. The input image data turn off after the setting time after an input filter signal becomes off.

Time

Input on/offDelay time(Filter time)

Input signal

Input imagedata

Input signal

Input imagedata

Any input signal shorter than assigned on/off filter time from KGLWIN is ignored.


Master-K 120s

- Interruption function ▪ MK120s can perform interrupt function using input points without any special interrupt modules.- High Speed Counter function ▪ Using HSC function, High speed pulses which are generated from encoder of pulse generator can be counted.- Positioning control ▪ The position of servo or stepping motor can be controlled by positioning function.- PID control ▪ PID function is integrated into the man unit. And, all the PID function can be performed with instruction (PIDB, PID8AT). ▪ P operation, PI operation and on/off operation can be selected easily. ▪ Manual output (user-defined forced output) is available. ▪ By proper parameter setting, it can keep stable operation regardless of external disturbance. ▪ The operation scan time (the interval that PID controller gets from an actuator) is changeable for optimizing the system characteristics. ▪ PWM (pulse width modulation) output is available.

Master-K 120s


Modem

Modem

K120s

Comm. module Comm. module

K120s

- Remote communication using a modem

- Multi-drop communication (2 Ways)

K120s

K120s

K120s

RS-485

External RS-422/485

Master-K 200s

▪ Overview

- Dedicated CPU offers ▪ Higher processing speed(0.5 ㎲ /step) ▪ More reliable system ▪ More cost-effective solution

-Variety of CPU just fit to your applications - Maximum I/O : 384 points ▪ CPUA : Computer Link(RS-232C) ▪ CPUB : Computer Link(RS-485), PID and RTC(Real Time Clock) included ▪ CPUC : Computer Link(RS-232C), PID and HSC(High Speed Counter), RTC (Real Time Clock) included

- Built-in Power supply for Analog control ▪ Output :5Vdc 2A, +15Vdc 0.5A, -15Vdc 0.2A

- Powerful Standard & High speed network ▪ RS232C, RS422/485 include MODBUS(RTU, ASCII), AB DF1(Full Duplex), Fieldbus (Fnet), F-net Single Remote I/O

As mentioned on page 6, MK200s and GM6 have the same CPU specification andcommunication system.

▪ Special specification

Master-K 200s

♦ Built-in memory ♦ Built-in RS-232C Link

- Built-in 7K Program Back-up without battery

- Not necessary additional memory pack such as

COM1(OMRON) ▪ COM: 4/8K EEPROM/EPROM Memory Cassette necessary

Dip switch for uploading program

Flash Memory

- Additional RS-232C Ch. with loader Ch. via one serial port

- Monitoring & Controlling communication status

- Providing 3 types of link speed

TXD

RXD

TXD

RXD

Loader Port (on CPU Module)

1

5

6

9

KGLWinHandy Loader

Main Computer

Master-K 200s

▪ Built-in Functions of CPUs

B type (CPU-GM6B) C type (CPU-GM6C)

- RS-422/485

▪ Station : 0~31(32 stations)

▪ Speed : 9,600/19,200/38,400 bps

▪ Multi-drop Network with High Speed

Computer

K200S

Master Slave

1:N N : N PLC

K200S K200SK200S

Computer

▪ ▪ ▪ ▪ ▪ ▪

- RTC (Real Time Clock)

▪ Record of Power Failure & etc. Available

▪ PID with Auto-tuning function

- High Speed Counter

▪ 1 phase Up/Down or 2 phases Up/Down

▪ Counting Range : 0~16,777,215 (24bit)

▪ Counting Speed : Max. 20Kbps

▪ Multiplication : 1 / 2 / 4

▪ Condition Up/Down for 1 phase ;

Program or External Input

- PID with auto-tuning function

▪ Simple PID control using software

▪ Not necessary PID/Temp. Controller

→ Cost-down effect

▪ Loop No. ; Unlimited

- RS-232C Interface

- RTC (Real Time Clock)

▪ Record of Power Failure etc. Available

Master-K 200s

▪ Special modules of MK 200s

CP

U

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Dig

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An

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HS

C PI

D

A/D conversion 4 Ch. voltage & current Input

D/A conversion 4 Ch. voltage & current Output

High Speed Counter 1 Ch. 0 ~16,777,215

APM 2,3-axis linear interpolation/2-axis interpolation

Temperature Control 4 Ch (K, J, E, T, B, R, S)

Communication FEnet I/F(Open,Dedicated) Fnet I/F, Fnet Remote I/F

Dnet I/F, Rnet I/F, Pnet I/F, Cnet I/F

• • • •

Master-K 300s

▪ Overview

- Dedicated CPU offers ▪ Higher processing speed(0.2 ㎲ /step) ▪ 15 KStep Program memory, Built-In RTC function ▪ More reliable system ▪ Compact size and Max. I/O up to 1,024 points

- Easy to use Windows based programming S/W ▪ Portability & Compatibility of software ▪ Mnemonic and LD Language support ▪ On-line Editing ▪ Various debugging and self-diagnosis

- Variety of special modules ▪ Analog I/O, PID, RTD, TC, HSC, positioning control

- Powerful Standard & High speed network ▪ RS232C, RS422/485 include MODBUS(RTU, ASCII), AB DF1(Ful Duplex), Fieldbus (Fnet), Single Remote I/O (via Fnet)

Master-K 300s

▪ Temperature control (special module)

- Features ▪ Simultaneous control of different processors with one module ▪ Forward/reverse control selectable ▪ Manual output (forced output) available ▪ Auto-tuning (P.I.D values are found automatically) ▪ No additional Input/Output due to various I/O built-in functions ▪ Input: RTD (2 types), Thermocouple (7 types), Voltage, Current ▪ Output: Current, Open collector output of time proportional control ▪ Various debugging and self-diagnosis

As mentioned on page 6, MK300s and GM4 have the same special modules.

Master-K 300s

▪ Thermocouple (special module) - Features ▪ 5 type thermocouple available (KS, JIS, ANSI, DIN, BS) ▪ Automatic reference junction compensation ▪ Burn-out detection in every channel

▪ Other special modules - RTD module ▪ 4 input channel, 0~16,000 digital conversation value - PID control module ▪ Max. 16 loops, Forward/Reverse control selectable - Analog timer module ▪ Setting and adjusting time (highly precise range) available - Positioning module (APM) ▪ Highly reliable position ▪ Arc/ linear interpolation, separate/ synchronous operation ▪ Trapezoidal & S-curve acceleration/ deceleration function.

As mentioned on page 6, MK300s and GM4 have the same special modules.

KGLWIN (Software)

▪ Overview

- User Friendly Ladder Diagram and Mnemonic Language Supported - Window-Based Tool( Windows 95, 98 and NT) - Applicable to all LG Master-K series - Remote programming via network is available - System configuration by Project Structure - Several windows can be displayed in a screen - Various Self-Diagnosis and abundant PLC information in On-Line mode - Display comments in a program available all printers supported by Windows.

▪ On-line editing

- Possible to edit programs in Run mode- Forced I/O On/Off and change the value of data

Simple Frame Editor Tool enables to replace

old complex programs for the communication protocol.

GLOFA-GM

- Global standard (IEC61131-3) language - Dedicated CPU (one-chip) for fast processing - Convenient programming tool - International standard communication protocol suitable for CIM - Various special function module - International standard Ethernet (GM4/6)

▪ General Introduction of GLOFA-GM

1024384120

GM4

GM6

GM7U

51280

capability

I/O points

GM7

2048

Block type Module type Redundancy

GMR

GLOFA-GM7

▪ Overview

- Dedicated CPU offers ▪ Higher processing speed(0.5 ㎲ /step), 64 KB Programming Capability ▪ More cost-effective solution

- IEC 61131-3 with Windows based programming S/W ▪ IL, LD and SFC supported ▪ Simulation Function and User defined Function Block

- Variety of CPU just fit to your applications ▪ 10/20/30/40/60 I/O types - Built-in I/O ▪ PID with auto-tuning, High-speed counter, External Interrupt, Pulse catch, Pulse output, and Input filters, RS-232C - Network ▪ Built-in two RS-232C channels support Modbus Protocol (In G7M-DR10A, both RS-232C and RS-422/485). RS-232C (for modem), and RS-422/485 are related to Modbus protocol as option Profibus-DP, DeviceNet Slave, F-net Master.


MAIN UNIT(10/20/30/40/60)

Wire

c

on

ne

ctio

n

DIGITAL I/O (Exp.) : 6 Input(24Vdc), 4 Output (Relay)

Hybrid Analog I/O ModuleInput : 2Ch, 0-10Vdc, 0-20mA, 12Bit(0-4,000), 0.5% or less(Full scale) Output : 1Ch, 0-10Vdc, 0~20nA, 12 Bit(0~4,000), 0.5% or less(Full scale)

Communication moduleRS-422, RS-232C(for modem) Module including MODBUS(Master/Slave, RTU, ASCII Mode) protocol.

The expansion configuration of GM7 is equal to the one of MK80s.

GLOFA-GM7

▪ Networking application

- Built in Network • Two communication channels using one port • Dedicated mode, MODBUS mode, User mode

- Option unit • RS-232C: For modem connection (dial-up modem, dedicated modem) • RS-422/485: Dedicated mode (High-speed link service, Multi-drop communication) MODBUS mode (Master, Slave, ASCII, RTU mode), User mode (Asynchronous method 9,600 ~ 128,000 bps)

TXD

RTD

RXD

TXD

Main computerOperator Interface

GMWIN S/W

The networking application of GM7 is equal to the one of MK80s.

GLOFA-GM7

GLOFA-GM7U

▪ Overview

- Main unit • Various main module: 32types 20/30/40/60 points AC/DC power, DC input, Relay/ Transistor output - Global standard (IEC61131-3) language: IL, ID, SFC Total 120 points are available (up to 3 extension module, 1 comm. Module)

- Processing speed: 0.1~0.9µs/Basic instruction - Various expansion module: 23 types • Digital I/O 6 types, Analog I/O 9 types, Communication I/F 6 types, Option module 2 types

- Communication Channel: 3 channels • Loader: 1ch, Built-in RS-485: 1ch Built-in RS-232c or communication I/F: 1ch ▪ Various mode: Dedicated/User-defined/ Modbus/No Protocol/LG Inverter mode

GLOFA-GM7U


- High speed counter function (32bits) • 1 phase: 100kHz 2CH, 20kCH (4CH in total) ▪ 2 phase: 50kHz 1CH, 10kHz 1CH (2CH in total)

- Positioning function ▪ Control axis: 2 axes (100kHz) ▪ Position/Speed/Synchronous operation

- Improved PID control function ▪ Relay and PRC auto-tuning ▪ PWM output, Delta MV ▪ Positioning / Velocity algorithm

- Pulse catch, External Interrupt: 10µs 2points, 50µs 6points - Input filter: 0~1000ms

As mentioned on page 6, MK120s and GM7U have the same special modules , so the explanation of special modules in GM7U is not included here.

GLOFA-GM6

▪ Overview - Dedicated CPU offers ▪ Higher processing speed(0.5 ㎲ /step), 64 Kbyte Programming Capability ▪ More cost-effective solution

- IEC 61131-3 with Windows based programming S/W ▪ IL, LD and SFC supported ▪ Simulation Function and User defined Function Block

- Variety of CPU just fit to your applications - Maximum I/O : 384 points ▪ CPUC : Computer Link(RS-232C), PID and HSC(High Speed Counter), RTC (Real Time Clock) included

- Built-in Power supply for Analog control ▪ Output :5Vdc 2A, +15Vdc 0.5A, -15Vdc 0.2A

- Powerful Standard & High speed network ▪ RS232C, RS422/485 support MODBUS(RTU, ASCII), AB DF1(Ful Duplex) protocol, Fieldbus (F-net), Single Remote I/O(F-net), Profibus-DP, DeviceNet, and Single Remote I/O.

▪ Special modules of GLOFA-GM6

CP

U

Po

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sup

ply

CP

U

Dig

ital I/O

An

alog

I/O

Co

mm

un

ication

HS

C PI

D

A/D conversion 4 Ch. voltage & current Input

D/A conversion 4 Ch. voltage & current Output

High Speed Counter 1 Ch. 0 ~16,777,215

APM 2,3-axis linear interpolation/2-axis interpolation

Temperature Control 4 Ch (K, J, E, T, B, R, S)

Communication FEnet I/F(Open,Dedicated) Fnet I/F, Fnet Remote I/F

Dnet I/F, Rnet I/F, Pnet I/F, Cnet I/F

• • • •

GLOFA-GM6

GLOFA-GM4

- Dedicated CPU offers ▪ Higher processing speed(0.2 ㎲ /step), 128 Kbyte Programming Capability ▪ More reliable system ▪ High performance

- IEC 61131-3 with Windows based programming S/W ▪ Portability & Compatibility of Software ▪ IL, LD and SFC supported ▪ Simulation Function and User defined Function Block

- Maximum I/O : 2,048 points

- Powerful Standard & High speed network ▪ RS232C, RS422/485 include MODBUS(RTU, ASCII), AB DF1(Ful Duplex) protocol, Ethernet, Fieldbus(F-net), Single Remote I/O(F-net), Profibus-DP, DeviceNet, and Single Remote I/O

▪ Overview

As mentioned on page 6, MK300s and GM4 have the same special modules , so the explanation of special modules in GM4 is excluded here.

Network (Cnet)

▪ Cnet (Serial interface)

- RS232C, RS422/485 ▪ Frame Editor Tool enables to communicate with any other PLCs using user defined protocol

- MODBUS mode ▪ Cnet module used as a Master or Slave station interface to connect MK 200s to the MODBUS network using MODBUS RTU or ASCII protocol

- AB DF1 (Full Duplex) Protocol

▪ Mountable up to 2 modules in one base board

▪ Modem connection is available for long distance

-RS-232C/422 Equipment

Comm. device

RS-232C/422MK Series

CU

EA

CU

EA

CU

EA

CU

EA

1 : N Link


Network (Cnet)

CU

EA

CU

EA

CU

EA

CU

EA

N : M Link

RS-232C RS-232C

MK series Different PLC

RS-422

Supports MODBUS and AB protocol : In-programmable for MODBUS(RTU, ASCII) or AB DF1(FULL DUPLEX) protocol in slave station.

MK Series: Master

RS232/RS422MODICON: Slave

MODBUS(ASCII & RTU)

AB: Slave

AB DF1(FULL DUPLEX)


Network (Cnet)

▪ Fieldbus (Fnet) & single remote I/Os

- Fnet (LG dedicated Fieldbus network) supports long distance communication ▪ Up to 5.25km (using 6 repeaters), generally 750m - Dedicated Gate Array enables High speed communication and Reliability ▪ Transmission speed : 1M bps - Mountable up to 2 modules in one base board

Network (Fnet)

Repeater (Max. 6)

Max.5.25km

opt Max 3kmCable

. .

. .

. .

. .

. .. .

. .EOC

(opt/elec. Converter)

(Max.2 SlotAllowed)

Active Coupler (optic)

GM7/K80S

Smart I/O

Stand-alone(Single) RemoteDC In (16P)

Stand-alone Remote Relay Out(16P)

PMU

Network (Fnet)

▪ Fnet configuration Ⅰ

Terminal resistance Terminal resistance

▪ Fnet configuration Ⅱ - Programming & Monitoring for 2nd layered remote PLC

CP

UCP

U Fn

et Fn

et

CP

U Fn

et CP

U Fn

et

CP

U Fn

et CP

U Fn

et CP

U Fn

et1st

Local

2nd

Fnet

Fnet

Fnet Fnet

Fnet Fnet Fnet

KGL-WinLoader

1st RemoteLevel

2nd RemoteLevel

2nd 2nd

1st

Network (Fnet)

- 10.100BASE-TX, 100BASE-FX (optical), 10BASE-5 support - High-reliability and performance: 32bit processor- Open (Information level) Ethernet and LGIS dedicated

(between LG PLCs) Ethernet- Internet service support: open Ethernet: E-mail send/ receive

(POP3, SNMP)- User-defined protocol editing and connection to other system using

other system using other function block: Open Ethernet only- GMWIN service for remote programming, Remote monitoring and

PLC mode control

▪ Fast Ethernet

Network (Fast Ethernet)

Network (Fast Ethernet)

▪ Fast Ethernet configuration

PC MMI PC MMI

Open FEnet

Dedicated FEnet

LG PLC LG PLC LG PLC Other PLC

Ethernet I/FBridge or router

LG PLC LG PLC LG PLC

Network (DeviceNet)

▪ DeviceNet

- Max. 63 slave modules control with one master module- Max. 2,048 I/O points control with one master module- Flexibility in network configuration: multi-drop and T- branch connection - Connectable to other master module and various slave modules

▪ Communication with other slave modules as master

▪ Communication with other master module as slave

(Mode change by mode switch in master module)- GM4-CPUC: 8 in total, GM4-CPUB: 4 in total

GM4-CPUA/GM6: 2 in total

- GM7: 1 slave module- Master/slave communication as predefined master/slave connection

communication using scan list enabling high–speed link without other

configuration tool

Network (DeviceNet)

▪ DeviceNet configuration (LGIS system)

PC MMI

DeviceNet

LG VFD


LG PLC

Smart I/O Smart I/O

▪ DeviceNet configuration (with other products)

Network (DeviceNet)

LG PLC LG PLC

PC MMI

LG VFD

AB, Omron

AB FLEX I/O

Other I/O devices

DeviceNetconfiguration

DeviceNet

PC MMI

Network (Profibus-DP)

▪ Profibus-DP

- Profibus-DP (Decentralized periphery)- Low cost network appropriate to field level- Proper to communicate among a master automation device and

distributed slave I/O devices- Master slave network

- Fast slave network

- Based on RS-485 communication as application layer

- Communication speed: 9.6kbps~12Mbps- Communication distance: 100~1,200m

- Max. 99 stations (32 stations/segment) support- Network setup Sycon (configuration tool)

- Communication using high-speed link parameter

Network (Profibus-DP)

▪ Profibus-DP configuration


Smart I/O Smart I/O

LG PLC

AB, Omron

Siemens I/O

PC

PC MMI

Profibus-DP

Profibus-DP

Documents

PLC General