Page 1
y
Read this manual carefully before installing,
wiring, operating, servicing or inspecting
this equipment.
y
Keep this manual within easy reach
for quick reference.
Programmable Logic Controller
MASTER-K120S
Page 2
SAFETY INSTRUCTIONS
To Prevent injury and property damage, follow these instructions.
Incorrect operation due to ignoring instructions will cause harm or
damage, the seriousness of which is indicated by the following symbols
.
■ The meaning of each symbol in this manual and on your equipment is
as follows
.
WARNING
CAUTION
This symbol indicates the possibility of
death or serious injury
This s
y
mbol indicates the possibility of
injury or damage to property.
This is the safety alert symbol.
Read and follow instructions carefully to avoid dangerous
situation.
This s
y
mbol alerts the user to the presence of “dangerous
voltage” inside the product that might cause harm or electric
shock.
Page 3
SAFETY INSTRUCTIONS
Design Precautions
Install a safety circuit external to the PLC that keeps the entire system
safe even when there are problems with the external power supply or
the PLC module. Otherwise, serious trouble could result from
erroneous output or erroneous operation.
- Outside the PLC, construct mechanical damage preventing interlock
circuits such as emergency stop, protective circuits, positioning upper
and lower limits switches and interlocking forward/reverse operation.
When the PLC detects the following problems, it will stop calculation and
turn off all output in the case of watchdog timer error, module interface
error, or other hardware errors.
However, one or more outputs could be turned on when there are
problems that the PLC CPU cannot detect, such as malfunction of output
device (relay, transistor, etc.) itself or I/O controller. Build a fail safe
circuit exterior to the PLC that will make sure the equipment operates
safely at such times. Also, build an external monitoring circuit that will
monitor any single outputs that could cause serious trouble.
Make sure all external load connected to output does NOT exceed the
rating of output module.
Overcurrent exceeding the rating of output module could cause fire, damage
or erroneous operation.
Build a circuit that turns on the external power supply when the PLC
main module power is turned on.
If the external power supply is turned on first, it could result in erroneous
output or erroneous operation.
Warnin
g
Page 4
SAFETY INSTRUCTIONS
Design Precautions
Installation Precautions
Do not bunch the control wires or communication cables with the main
circuit or power wires, or install them close to each other. They should
be installed 100mm (3.94inch) or more from each other.
Not doing so could result in noise that would cause erroneous operation.
Use the PLC in an environment that meets the general specification
contained in this manual or datasheet.
Using the PLC in an environment outside the range of the general
specifications could result in electric shock, fire, erroneous operation, and
damage to or deterioration of the product.
Completely turn off the power supply before loading or unloading the
module.
Not doing so could result in electric shock or damage to the product.
Make sure all modules are loaded correctly and securely.
Not doing so could cause a malfunction, failure or drop.
Make sure I/O and extension connector are installed correctly.
Poor connection could cause an input or output failure.
When install the PLC in environment of much vibration, be sure to
insulate the PLC from direct vibration.
Not doing so could cause electric shock, fire, and erroneous operation.
Be sure to there are no foreign substances such as conductive debris
inside the module.
Conductive debris could cause fires, damage, or erroneous operation.
Caution
Caution
Page 5
SAFETY INSTRUCTIONS
Wiring Precautions
Completely turn off the external power supply when installing or
placing wiring.
Not doing so could cause electric shock or damage to the product.
Make sure that all terminal covers are correctly attached.
Not attaching the terminal cover could result in electric shock.
Be sure that wiring is done correctly be checking the product’s rated
voltage and the terminal layout.
Incorrect wiring could result in fire, damage, or erroneous operation.
Tighten the terminal screws with the specified torque.
If the terminal screws are loose, it could result in short circuits, fire, or
erroneous operation.
Be sure to ground the FG or LG terminal to the protective ground
conductor.
Not doing so could result in erroneous operation.
Be sure there are no foreign substances such as sawdust or wiring
debris inside the module.
Such debris could cause fire, damage, or erroneous operation.
Warnin
g
Caution
Page 6
SAFETY INSTRUCTIONS
Startup and Maintenance Precautions
Disposal Precaution
Do not touch the terminals while power is on.
Doing so could cause electric shock or erroneous operation.
Switch all phases of the external power supply off when cleaning the
module or retightening the terminal or module mounting screws.
Not doing so could result in electric shock or erroneous operation.
Do not charge, disassemble, heat, place in fire, short circuit, or solder
the battery.
Mishandling of battery can cause overheating or cracks which could result in
injury and fires.
Do not disassemble or modify the modules.
Doing so could cause trouble, erroneous operation, injury, or fire.
Switch all phases of the external power supply off before mounting or
removing the module.
Not doing so could cause failure or malfunction of the module.
Use a cellular phone or walky-talky more than 30cm (11.81 inch) away
from the PLC
Not doing so can cause a malfunction.
When disposing of this product, treat it as industrial waste.
Not doing so could cause poisonous pollution or explosion.
Warnin
g
Caution
Caution
Page 7
Revision History
Date Code Revision history
2002.7. 10310000380 First edition is published
2003.5. 10310000380 A revised edition is published
– Main unit and expansion modules are added
– Built-in function are upgraded
2003.9 10310000380 A revised edition is published.
- Main units are added
- Built-in functions are upgraded.
Page 8
◎ Contents ◎
Chapter 1. General
1.1 Guide to Use This Manual ················· 1 - 1
1.2 Features ······················· 1 - 2
1.3 Terminology ······················ 1 - 3
Chapter 2. System Configuration
2.1 Overall Configuration ··················· 2 - 1
2.1.1 Basic System································································································2 - 1
2.1.2 Cnet I/F System·····························································································2 - 2
2.2 Product Functional Model ················· 2 - 4
2.2.1 Product Functional Block················································································· 2 - 4
2.2.2 MASTER-K120S Series System Equipment Product ·············································2 - 5
Chapter 3. General Specifications
3.1 General Specifications ·················· 3 - 1
Chapter 4. Names of Parts
4.1 Main Unit ······················· 4 - 1
4.1.1 60 Points Main Unit (Standard)·········································································4 - 2
4.1.2 40 Points Main Unit (Standard)··········································································4 -3
4.1.3 30 Points Main Unit (Standard)·········································································4 - 4
4.1.4 20 Points Main Unit (Standard)·········································································4 - 5
4.1.5 30 Points Main Unit (Economic)········································································ 4 - 6
4.1.6 20 Points Main Unit (Economic)·········································································4 -7
4.1.7 14 Points Main Unit (Economic)········································································ 4 - 7
4.1.8 10 Points Main Unit (Economic)········································································ 4 - 7
4.2 Expansion I/O Module··················· 4 - 8
4.2.1 20 Point I/O Module························································································4 - 8
4.2.2 10 Point I/O Module························································································4 - 8
4.2.3 8 Point I/O Module·························································································4 - 9
4.3 Special Module ···················· 4 - 10
4.3.1 A/D·D/A Combination Module········································································4 - 10
4.3.2 D/A Conversion Module··················································································4 - 11
4.3.3 A/D Conversion Module··················································································4 - 11
4.3.4 Analog Timer Module·····················································································4 - 12
4.3.5 RTD Input Module·························································································4 - 12
Page 9
4.4 Communication I/F Module ················· 4 - 13
4.4.1 Cnet I/F Module····························································································4 - 13
4.4.2 Fnet I/F Module····························································································4 - 13
4.4.3 Pnet I/F Module····························································································4 - 14
4.4.4 DeviceNet I/F Module····················································································4 - 14
4.5 Option Module ····················· 4 - 14
Chapter 5. Power Supply / CPU
5.1 Power Supply Specifications ················ 5 - 1
5.1.1 Standard Type·······························································································5 - 1
5.3.2 Economic Type······························································································5 - 1
5.2 CPU Specifications···················· 5 - 2
5.2.1 Standard Type·······························································································5 - 2
5.2.2 Economic Type······························································································5 - 4
5.3 Operation Processing ··················· 5 -6
5.3.1 Operation Processing Method···········································································5 - 6
5.3.2 Operation Processing at Momentary Power Failure Occurrence······························· 5 - 7
5.3.3 Scan Time···································································································· 5 - 8
5.3.4 Scan Watchdog Timer·····················································································5 - 8
5.3.5 Timer Processing ························································································· 5 - 9
5.3.6 Counter Processing·······················································································5 - 12
5.4 Program························································································ 5 - 14
5.4.1Classifications of Program ·············································································5 - 14
5.4.2 Program Execution Procedure········································································· 5 - 14
5.4.3 Interrupt Programs························································································5 - 15
5.4.4 Error Handling······························································································5 - 17
5.5 Operation Modes ···················· 5 - 19
5.5.1 RUN Mode··································································································5 - 19
5.5.2 STOP Mode·································································································5 - 20
5.5.3 PAUSE Mode·······························································································5 - 20
5.5.4 DEBUG Mode(Standard Type Only)··································································5 - 20
5.5.5 Operation Mode Change················································································5 - 21
5.6 Function························ 5 - 23
5.6.1 Self-diagnosis······························································································5 - 23
5.6.2 I/O Force On/Off function ··············································································5 - 24
5.6.3 Direct I/O Operation function···········································································5 - 27
5.6.4 System error history······················································································5 - 27
5.7 Memory Configuration··················· 5 - 28
5.8 I/O Address Allocation··················· 5 - 29
5.9 Built-in Cnet Selection switch ···························································5 - 30
5.9.1 Structure·····································································································5 - 30
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5.9.2 Usage········································································································5 - 30
5.10 External Memory Module ················· 5 - 32
5.10.1 Structure···································································································5 - 32
5.10.2 Usage·······································································································5 - 32
5.11 RTC Module······················ 5 - 34
5.11.1 Structure···································································································5 - 34
5.11.2 Usage······································································································5 – 34
Chapter 6. Input and Output Modules
6.1 Input / Output Specifications ················ 6 - 1
6.2 Digital Input Specifications ················· 6 - 2
6.2.1 Main Unit ····································································································· 6 - 2
6.2.2 Expansion Module ·························································································6 - 5
6.3 Digital Output Specification ················· 6 - 6
6.3.1 Main Unit (Relay Output)·················································································6 - 6
6.3.2 Main Unit (Tr Output :DRT/DT Type Only) ··························································· 6 - 9
6.3.3 Expansion Module ························································································6 - 11
Chapter 7. Usage of Various Functions
7.1 Built-in Functions ···················· 7 - 1
7.1.1 High Speed Counter Function··········································································· 7 - 1
7.1.2 Pulse Catch Function·····················································································7 - 14
7.1.3 Input Filter Function·······················································································7 - 16
7.1.4 External Interrupt Function··············································································7 - 17
7.1.5 PID Control Function(Standard Type Only)·························································7 - 19
7.2 Special Module ····················· 7 - 39
7.2.1 A/D·D/A Combination Module········································································7 - 40
7.2.2 A/D Conversion Module··················································································7 - 49
7.2.3 D/A Conversion Module··················································································7 - 55
7.2.4 Analogue Timer ··························································································7 - 61
7.2.5 RTD input Module ·······················································································7 - 63
7.3 Positioning Function(DRT /DTtype only) ············ 7 - 69
7.3.1 Specification································································································7 - 69
7.3.2 Positioning Function······················································································7 - 72
7.3.3 Positioning parameter and Operation Data·························································7 - 85
7.3.4 Instructions ································································································7 - 91
7.3.5 Flag list and Error code ··············································································7 - 100
7.3.6 Wiring with servo and stepping motor driver······················································7 - 104
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Chapter 8. Communication Function
8.1 Dedicated Protocol Communication ·············· 8 - 1
8.1.1 Introduction ·································································································· 8 - 1
8.1.2 System configuration method ··········································································· 8 - 2
8.1.3 Frame Structure ···························································································· 8 - 5
8.1.4 Lists of Commands ························································································8 - 7
8.1.5 Data Type····································································································8 - 8
8.1.6 Execution of Commands ·················································································8 - 9
8.1.7 1:1, 1:n Built-in Communication between MASTER-K120S’s ································8 - 28
8.1.8 Error Codes·································································································8 - 38
8.2 User Defined Protocol Communication ············· 8 - 39
8.2.1 Introduction ·································································································8 - 39
8.2.2 Parameter Setting·························································································8 - 39
8.2.3 Instruction ·································································································8 - 47
8.2.4 Example of usage ·······················································································8 - 48
8.3 Modbus Protocol Communication··············· 8 - 57
8.3.1 Introduction ·································································································8 - 57
8.3.2 Basic Specifications ······················································································8 - 57
8.3.3 Parameter Setting·························································································8 - 60
8.3.4 Instruction and examples ··············································································8 - 62
8.4 No Protocol Communication ················ 8 - 67
8.4.1 Introduction ·································································································8 - 67
8.4.2 Parameter Setting·························································································8 - 68
8.4.3 Instructions··································································································8 - 69
8.4.4 Examples ··································································································8 - 71
8.5 Remote Connection and Communication I/F module ········ 8 - 73
8.5.1 Remote Connection·······················································································8 - 73
8.5.2 Communication I/F Module ·············································································8 - 76
Chapter 9. Installation and Wiring
9.1 Installation ······················· 9 - 1
9.1.1 Installation Environment··················································································9 - 1
9.1.2 Handling Instructions······················································································9 - 3
9.1.3 Connection of Expansion Module······································································ 9 - 6
9.2 Wiring ························ 9 - 7
9.2.1 Power Supply Wiring······················································································ 9 - 7
9.2.2 Input and Output Devices Wiring·······································································9 - 8
9.2.3 Grounding···································································································· 9 - 9
9.2.4 Cable Specifications for wiring··········································································9 - 9
Page 12
Chapter 10. Maintenance
10.1 Maintenance and Inspection ················ 10 - 1
10.2 Daily Inspection ···················· 10 - 1
10.3 Periodic Inspection ··················· 10 - 2
Chapter 11. Troubleshooting
11.1 Basic Procedure of Troubleshooting ············· 11 - 1
1 1.2 Troubleshooting ············································································ 11 - 1
11.2.1 Troubleshooting flowchart used when the power LED turns off ·····························11 - 2
11.2.2 Troubleshooting flowchart used when the error LED is flickering····························11 - 3
11.2.3 Troubleshooting flowchart used when the RUN LED turns off································11 - 4
11.2.4 Troubleshooting flowchart used when the I/O devices doesn’t operate normally ········11 - 5
11.2.5 Troubleshooting flowchart used when a program can’t be written to the CPU············11 - 7
1 1.3 Troubleshooting Questionnaire························································· 11 - 8
1 1.4 Troubleshooting Examples······························································· 11 - 9
11.4.1 Input circuit troubles and corrective actions·······················································11 - 9
11.4.2 Output circuit troubles and corrective actions···················································11 - 10
11.5 Error code list ··············································································11 - 12
Appendix··················································································································
Appendix 1 System Definitions·······························································App1-1
Appendix 2 Flag Lists···········································································
App2-1
Appendix 3 Dimensions········································································App3-1
Page 13
Chapter 1 General
1-1
Chapter 1. General
1.1 Guide to Use This Manual
This manual includes specifications, functions and handling instructions for the MASTER-K120S series PLC.
This manual is divided up into chapters as follows:
No. Title Contents
Chapter 1 General Describes configuration of this manual, unit's features and terminology.
Chapter 2 System configuration Describes available units and system configurations in the MASTER-K120S series.
Chapter 3 General Specification Describes general specifications of units used in the MASTER-K120S series.
Chapter 4 Names of Parts Describes each kind of manufacturing goods, titles, and main functions
Chapter 5 Power Supply / CPU
Chapter 6 Input and Output
Chapter 7
Usage of Various
Functions
Describes each kind of manufactured goods' usage
Chapter 8 Communication Function Describes built-in communication functions
Chapter 9 Installation and Wiring Describes installation, wiring and handling instructions for reliability of the PLC system
Chapter 10 Maintenance
Describes the check items and method for long-term normal operation of the PLC
system.
Chapter 11 Troubleshooting Describes various operation errors and corrective actions.
Appendix 1 System Definitions Describes parameter setting for basic I/O and communications module
Appendix 2 Flag List Describes the types and contents of various flags.
Appendix 3 Dimensions Shows dimensions of the main units and expansion modules
REMARK
-. This manual does not describes the programming method. For their own functions, refer to the related user's
manuals.
Page 14
Chapter 1 General
1-2
1.2. Features
1) MASTER-K120S series is extremely compact, to fit a wide range of applications and have following features.
(1) High speed processing
High speed processing of 0.1~0.9µs/step with an general purpose processor included .
(2) Various built-in functions
The main unit can perform many functions without using separate modules. Therefore, It is possible to construct various
systems just using the main unit.
• Fast Processing Applications
- Pulse catch: Allows the main unit to read a pulse which has width as small as 10 ㎲.
- High speed counter(Economic): Support high-speed counting up to 100(10)kHz for 1 phase, 50(5)kHz for 2 phase.
- External interrupts : Using in applications that have a high-priority event which requires immediate responses.
• The input filter function help reduce the possibility of false input conditions from external noise, such as signal
chattering. The filter time can be programmed from 0 to 1000ms.
• Using RS-232C and RS-485 built-in port, MASTER-K120S can connects with external devices, such as personal
computers or monitoring devices and communicate 1:N with MASTER-K120S system.
• Using built-in PID control function, PID control system can be constructed without using separate PID module.
• Using built-in Positioning function, position control system can be constructed without using separate position control
module.(only DRT/DT type has built-in positioning function)
(3) Battery-less
The user’s program can be saved permanently, because it is stored to EEPROM.
(4) When program is edited during processing, it is stored to EEPROM automatically
(5) Open network by use of communication protocols in compliance with international standard specifications.
(6) Various special modules that enlarge the range of application of the PLC
(7) It can easily do On/Off of the system, using RUN/STOP switch.
(8) It can easily save the user program in EEPROM by simple manipulation in KGLWIN without using external memory.
(9) Strong self-diagnostic functions
It can detect the cause of errors with more detailed error codes.
(10) It can prevent unintentional reading and writing, using password.
(11)
Debugging function(Standard type)
On-line debugging is available when the PLC Operation mode is set to debug mode.
y executed by one command.
y executed by break-point settings.
y executed by the condition of the device
y executed by the specified scan time.
(12) Various program execution function
External and internal interrupt program as well as scan program can be executed by setting the execution condition.
Therefore, user can set variously program execution mode.
Page 15
Chapter 1 General
1-3
1.3 Terminology
The following table gives definition of terms used in this manual.
Terms Definition Remarks
Module
A standard element that has a specified function which configures the
system. Devices such as I/O board, which inserted onto the mother board
or base unit.
Example)
CPU module
Power Supply module
I/O module
Unit
A single module or group of modules that perform an independent
Operation as a part of PLC system.
Example)
Main unit
PLC system
A system which consists of the PLC and peripheral devices. A user program
can control the system.
KGLWIN
A program and debugging tool for the MASTER-K series. It executes
program creation, edit, compile and debugging(A computer software).
KLD-150S
A hand-held loader used for program creation, edit, compile and debugging
for MASTER-K series.
I/O Image Area Internal memory area of the CPU module which used to hold I/O statuses.
Watch Dog Timer
Supervisors the pre-set execution times of programs and warns if a
program is not completed within the pre-set time.
FAM
Abbreviation of the word ‘Factory Automation Monitoring S/W’. It is used to
call S/W packages for process supervision.
Fnet Fieldbus network
Cnet Computer network(RS-232C, RS-422/485)
RTC
Abbreviation of ‘Real Time Clock’. It is used to call general IC that
contains clock function.
Page 16
Chapter 1 General
1-4
Terms Definition Remarks
Sink Input
Current flows from the switch to the PLC input terminal if a input signal turns on.
Source
Input
Current flows from the PLC input terminal to the switch after a input signal turns
on.
Sink Output
Current flows from the load to the output terminal and the PLC output turn on.
Source
Output
Current flows from the output terminal to the load and the PLC output turn on.
Output
Contact
Output Contact
Page 17
Chapter 2 System Configuration
2-1
Chapter 2. System Configuration
The MASTER-K120S series has suitable to configuration of the basic, computer link and network systems.
This chapter describes the configuration and features of each system.
2.1 Overall Configuration
2.1.1 Basic system
Total I/O points
• 10-120 points
Standard Economic
Digital I/O module
• 3 modules • 2 modules
A/D-D/A module
• 3 modules • 2 modules
Analog timer
• 3 modules • 2 modules
Maximum number
of expansion
modules
Cnet I/F module
• 1 module • 1 modules
Economic
• K7M-DR10/14/20/30UE
Main unit
Standard
• K7M-DR//DRT/DT20/30/40/60U
Digital I/O module
•
G7E-DR10A, G7E-DR20A, G7E-TR10A, G7E-DC08A, G7E-RY08A
Analog I/O module
• G7F-ADHA, G7F-ADHB, G7F-AD2A, G7F-DA2I, G7F-DA2V
Analog timer
• G7F-AT2A
Expansion
module
Resistance Temperature Detactor
• G7F-RD2A
Cnet I/F modules
• G7L-CUEB, G7L-CUEC
DeviceNet I/F module
• G7L-DBEA
FieldBus I/F module
• G7L-FUEA
Communic
ation I/F
module
Profibus I/F Module
• G7L-PBEA
RTC
• G7E-RTCA
Items
Option
module
Memory
• G7M-M256B
Main unit
expansion
module
expansion
cable
Page 18
Chapter 2 System Configuration
2-2
2.1.2 Cnet I/F system
Cnet I/F System is used for communication between the main unit and external device s using RS-232C/RS-422 Interface.
The MK120S has a built-in RS-232C port, RS-485 port and has also G7L-CUEB for RS-232C, G7L-CUEC for RS-422. It is
possible to construct communication systems on demand.
1) 1:1 Communications system
(1) 1:1 ratio of an external device (computer) to main unit using a built-in port
(2) 1:1 ratio of an external device (monitoring unit) to main unit using a built-in RS-485 port
RS-485
MASTER-K120S
RS-232C
RS-485
MASTER-K120S
MASTER-K120S
RS-232C
Monitoring Device
Monitoring Device
Page 19
Chapter 2 System Configuration
2-3
(3) RS-232C Communication over a long distance via modem by Cnet I/F modules
2) 1:n Communications system
This method can connect between one computer and multiple main units for up to 32 stations
Modem
Modem
Modem
Modem
G7L-CUEB
G7L-CUEB
G7L-CUEB
MASTER-K120S
MASTER-K120S
MASTER-K120S
RS-232C ⇔ RS-422 Converter
G7L-CUEC
G7L-CUEC
MASTER-K120S
RS-232C ⇔ RS-485
Converter
Built-in RS-485 Built-in RS-485
Built-in RS-485
* Refer to ‘chapter 8. communication function’ for details.
MASTER-K120S
MASTER-K120S
Page 20
Chapter 2 System Configuration
2-4
2.2 Product Functional Model
The following describes functional model of the MASTER-K120Sseries.
2.2.1 Product Functional Block
Product function block for the K120S series is as follows.
Main Unit Expansion Modules
Power supply Input signal Input signal
Built-in RS-232C I/F Output signal Output signal
Sub-system Description
CPU
• Signal processing function
-. Operating system function
-. Application program storage / memory function
-. Data storage / memory function
-. Application program execution function
Input
• The input signals obtained from the machine/process to appropriate signal levels for
processing
Output
• The output signals obtained from the signal processing function to appropriate signal
levels to drive actuators and/or displays
Power Supply
• Provides for conversion and isolation of the PLC system power from the main supply
Communication
Interface
• Provides the data exchange with other systems or PADT, such as KGLWIN, personal
computers
Built-in
RS-485
Special/communication
modules
Power
supply
Comm. I/F
Input
Output
Input
Output
CPU
•
DC24V
Power
supply
Page 21
Chapter 2 System Configuration
2-5
2.2.2 K120S Series System Equipment Product
1) Main Unit – Standard type
Items Models
I/O Point &
Power Supply
Built-in Function Remark
K7M-DR20U
12 DC inputs(24VDC)
8 relay outputs
85~264 VAC
K7M-DR30U
18 DC inputs(24VDC)
12 relay outputs
85~264 VAC
K7M-DR40U
24 DC inputs(24VDC)
16 relay outputs
85~264 VAC
K7M-DR60U
36 DC inputs(24VDC)
24 relay outputs
85~264 VAC
• Program capacity : 10 k steps
• Max. expansion : 3 modules
• High-speed counter :
- 1 Phase : 100 kHz 1channel, 20 kHz 2channel.
- 2 Phase : 50 kHz 1channel, 10 kHz 1channel.
• Pulse catch : pulse width 10 ㎲ 2 points, 50 ㎲ 6 points,
• External interrupt: : 10 ㎲ 2 points, 50 ㎲ 6 points
• Input filter: 0 ~ 1000ms (can be designated with groups)
• PID control function
• RS-232C communication, RS-485 communication
K7M-
DRT/DT20U
12 DC inputs(24VDC)
4/0 relay outputs
4/8 TR outputs
85~264 VAC
K7M-
DRT/DT30U
18 DC inputs(24VDC)
8/0 relay outputs
4/12 TR outputs
85~264 VAC
K7M-
DRT/DT40U
24 DC inputs(24VDC)
12/0 relay outputs
4/16 TR outputs
85~264 VAC
Main Unit
K7M-
DRT/DT60U
36 DC inputs(24VDC)
20/0 relay outputs
4/24 TR outputs
85~264 VAC
• Program capacity : 10 k steps
• Max. expansion : 3 modules
• High-speed counter :
- 1 Phase : 100 kHz 1channel, 20 kHz 2channel.
- 2 Phase : 50 kHz 1channel, 10 kHz 1channel.
• Pulse catch : pulse width 10 ㎲- 2 points, 50 ㎲- 6 points,
• External interrupt: : 10 ㎲- 2 points, 50 ㎲- 6 points
• Input filter: 0 ~ 1000ms (can be designated with groups)
• PID control function
• RS-232C communication, RS-485 communication
• Positioning function
- 2axes 100 kpps
- Absolute / Incremental positioning method
- Single / Repeat operation method
- End / Keep / Continuous mode
- Return to origin, JOG, PWM, velocity control
2) Main Unit – Economic type
Items Models
I/O Point &
Power Supply
Built-in Function Remark
K7M-DR10UE
6 DC inputs(24VDC)
4 relay outputs
85~264 VAC
K7M-DR14UE
8 DC inputs(24VDC)
6 relay outputs
85~264 VAC
K7M-DR20UE
12 DC inputs(24VDC)
8 relay outputs
85~264 VAC
Main Unit
K7M-DR30UE
18 DC inputs(24VDC)
12 relay outputs
85~264 VAC
• Program capacity : 2 k steps
• Max. expansion : 2 modules
• Pulse catch : pulse width 50 ㎲ 4 points,
• High-speed counter :
- 1 Phase : 10 kHz 2channel.
- 2 Phase : 5 kHz 1channel.
• External interrupt: : 50 ㎲ 4 points
• Input filter: 0 ~ 1000ms (can be designated with groups)
• RS-232C communication
• RS-485 communication(K7M-DR10/14UE only)
• Built-in analog timer(K7M-DR10/14UE only)
Page 22
Chapter 2 System Configuration
2-6
3) Expansion Modules
Section Items Models Description Remark
G7E-DR10A
• 6 DC inputs / 4 relay outputs
G7E-DR20A
• 12 DC inputs / 8 relay outputs
G7E-DC08A
• 8 DC inputs
Slim Type
G7E-TR10A
• 10 Transistor outputs
G7E-RY08A
• 8 relay outputs
Slim Type
Expansion
module
Digital I/O module
G7E-DR08A
• 4 DC Input, 4 Relay output
G7F-ADHA
• A/D : 2 channel , D/A : 1 channel
A/D-D/A
Combination module
G7F-ADHB
• A/D : 2 channel , D/A : 2 channel
Slim
Type
A/D conversion module G7F-AD2A
• A/D : 4 channel
G7F-DA2I
• D/A : 4 channel(current output)
D/A conversion module
G7F-DA2V
• D/A : 4 channel(voltage output)
Slim
Type
Analog timermodule G7F-AT2A
• Points : 4points
• Digital output range : 0~200
RTD module G7F-RD2A
• Resistance temperature detactor
- 4 channel(Pt100, JPt100)
Slim
Type
Standard
type only
G7L-CUEB
• RS-232C : 1 channel
G7L-CUEC
• RS-422 : 1 channel
G7L-DBEA
• DeviceNet I/F module (Slave)
G7L-FUEA
• FieldBus I/F module
Communication I/F module
G7L-PBEA
• Profibus I/F module (Slave)
Standard
type only
RTC module G7E-RTCA
• Real Time Clock module
Special
module
External Memory G7M-M256B
• External Memory module
* External memory G7M-M256 isn’t supported in K120S series. Only G7M-M256B is available for K120S series.
Page 23
Chapter 3 General Specifications
3-1
Chapter 3. General Specifications
3.1 General Specifications
The following table shows the general specifications of the MASTER-K120S series.
No. Item Specifications References
1
Operating ambient
Temperature
0 ~ 55 °C
2
Storage ambient
Temperature
−25 ~ +70 °C
3
Operating ambient
Humidity
5 ~ 95%RH, non-condensing
4
Storage ambient
Humidity
5 ~ 95%RH, non-condensing
Occasional vibration -
Frequency Acceleration Amplitude Sweep count
10 ≤ f < 57Hz
−
0.075mm
57 ≤ f ≤ 150Hz
9.8m/s
2
{1G}
−
Continuous vibration
Frequency Acceleration Amplitude
10 ≤ f < 57Hz
−
0.035mm
5 Vibrations
57 ≤ f ≤ 150Hz
4.9m/s
2
{0.5G}
−
10 times for each
X, Y, Z axis
IEC 61131-2
6 Shocks
• Maximum shock acceleration: 147 m/s
2
{15G}
• Duration time: 11ms
• Pulse wave: half sine pulse ( 3 shocks per axis, on X, Y, Z axis )
IEC 61131-2
Square wave
Impulse noise
± 1,500 V
LGIS’ Internal
Standard
Electronic
discharge
Voltage: 4 kV ( Discharge by contact )
IEC 61131-2,
IEC 1000-4-2
Radiated
electromagnetic
field noise
27 ~ 500 MHz, 10 V/m
IEC 61131-2,
IEC 1000-4-3
Item Power supply
Digital I/O
(24V and up)
Digital I/O
(less than24V)
Analog I/O
Interface
7 Noise Immunity
Fast transient &
burst noise
Voltage
2kV 1kV 0.25kV
IEC 61131-2
IEC 1000-4-4
8
Atmosphere Free of corrosive gases and excessive dust
9
Altitude
Up to 2,000m
10
Pollution degree
2
11
Cooling method
Air-cooling
1)
IEC (International Electrotechnical Commission): A n international civilian institute who es tablishes international standards i n area of elec tric
and electronics.
2) Pollution degree: An indicator, which indicates pollution degree, which determine insulation performance of equipment.
* Pollution degree 2 : Normally, only non-conductive pollution occurs. Occasionally, however, a temporary conductivity caused by
condensation shall be ex
p
ected.
REMARK
Page 24
Chapter 4 Names of Parts
4 -1
Chapter 4. Names of Parts
4.1 Main Unit
- +
RS-485
No. Name Description
PWR LED
Indicates status of power supply to the system
y On : When the supplied power is normal
y Off : When the supplied power is abnormal
RUN LED
Indicates operating status of main unit
y On : Indicates local key switch or remote running mode
y Off : with the followings, LED turns off
- When the supplied power to the main unit is abnormal.
- While key switch is on stop mode
- Detecting an error which makes operation stop
CPU
Condition
LED
ERR LED
Indicates operating status of CPU
y Flickering : self-inspected error
y Off: CPU is working normal.
⑦
①
②
③
⑧
④
⑤
⑥
⑨
③
Page 25
Chapter 4 Names of Parts
4 -2
No Name Description
I/O LED Indicates operating status of I/O
Built-in RS-485 connector
(Except K7M-DR10/14UE)
2-pin connector for built-in RS-485 communications.
Key switch for mode creation
.(Except economic type)
Designates main unit’s operation mode
y RUN : Run program operation
y STO P : Stop program operation
y P AU / REM: usage of each modules are as follows:
- PAUSE : temporary stopping program operation
- REMOTE : designates remote driving
Dip-switch for Cnet I/F
See Chapter 5.
RS-232C connector
9-pin DIN connector to connect with external devices like KGLWIN
Expansion connector cover Connector cover to connect with expansion unit
Terminal block cover
Protection cover for wiring of terminal block
Private hook DIN rail
Private part hook for DIN rail
4.1.1 60-points main unit (Standard)
1) K7M-DR60U
Page 26
Chapter 4 Names of Parts
4 -3
2) K7M-DRT60U
3) K7M-DT60U
4.1.2 40-points main unit (Standard)
1) K7M-DR40U
Page 27
Chapter 4 Names of Parts
4 -4
2) K7M-DRT40U
3) K7M-DT40U
4.1.3 30-points main unit (Standard)
1) K7M-DR30U
Page 28
Chapter 4 Names of Parts
4 -5
2) K7M-DRT30U
3) K7M-DT30U
4.1.4 20-points main unit (Standard)
1) K7M-DR20U
Page 29
Chapter 4 Names of Parts
4 -6
2) K7M-DRT20U
3) K7M-DT20U
4.1.5 30-points main unit (Economic)
1) K7M-DR30UE
Page 30
Chapter 4 Names of Parts
4 -7
4.1.6 20-points main unit (Economic)
1) K7M-DR20UE
4.1.7 14-points main unit (Economic)
1) K7M-DR14UE
4.1.8 10-points main unit (Economic)
1) K7M-DR10UE
Page 31
Chapter 4 Names of Parts
4 -8
4.2 Expansion I/O Module
4.2.1 20points I/O Module
1) G7E-DR20A
4.2.2 10points I/O Module
1) G7E-DR10A
1) G7E-TR10A
No. Names
① Input LED
② Output LED
③ Input contact
④ Input common terminal
⑤ Output contact
⑥ Output common terminal
⑦ Expansion cable
⑧ Expansion Cable Connecting Terminal
No. Names
① Input LED
② Output LED
③ Input contact
④ Input common terminal
⑤ Output contact
⑥ Output common terminal
⑦ Expansion cable
⑧ Expansion Cable Connecting Terminal
No. Names
① Output LED
② Output contact
③ Output common terminal
④ External Power Supply Terminal (DC24V)
⑤ Expansion cable
⑥ Expansion Cable Connecting Terminal
②
⑤③④
⑥
⑦
①
⑤
⑥⑧③④⑦
⑧
①
②
⑤⑤⑤⑥⑥
⑥
①
②
③④⑤
⑥
Page 32
Chapter 4 Names of Parts
4 -9
4.2.3 8points I/O Module
1) G7E-DC08A
2) G7E-RY08A
No. Names
① Input LED
② Input contact
③ Input common terminal
④ Expansion cable
⑤ Expansion Cable Connecting Terminal
No. Names
① Output LED
② Output contact
③ Output common terminal
④ Expansion cable
⑤ Expansion Cable Connecting Terminal
①
②
③②③⑤④
①
②
③②③⑤④
Page 33
Chapter 4 Names of Parts
4 -10
4.3 Special Module
4.3.1 A/D·D/A Combination Module
1) G7F-ADHA
No.
Names
①
RUN LED
②
Analog Output Terminal
③
Analog Input (Voltage/current) selecting jumper pin
④
Analog Input Terminal
⑤
External Power Supply Terminal (DC24V)
⑥
Expansion Cable
⑦
Expansion Cable Connecting Terminal
2) G7F-ADHB
No.
Names
RUN LED
Analog Input Terminal
Analog Output Terminal
External Power Supply Terminal (DC24V)
Expansion Cable
Expansion Cable Connecting Terminal
⑦①②③④⑤⑥
①
③
④
②
⑤
⑥
Page 34
Chapter 4 Names of Parts
4 -11
4.3.2 D/A Conversion Module
1) G7F-DA2I
No.
Names
①
RUN LED
②
Analog Output Terminal
③
Expansion Cable
④
Expansion Cable Connecting Terminal
External Power Supply Terminal (DC24V)
2) G7F-DA2V
No.
Names
RUN LED
Analog Output Terminal
Expansion Cable
Expansion Cable Connecting Terminal
External Power Supply Terminal (DC24V)
4.3.3 A/D Conversion Module
RUN LED
Analog Input Terminal
Analog Input (Voltage/current) selecting jumper
pin
External Power Supply Terminal (DC24V)
Expansion Cable
Expansion Cable Connecting Terminal
①②③④⑤
24V 24G
Input
Select
Input
CH3
CH2
CH1
CH0
CH0
I0
CH1 CH2 CH3
V0 COM
·
I1
V1 COM
·
I2
V2
COM
·
I3
V3 COM
·
①②③
④⑤⑥⑤③①④
②
Page 35
Chapter 4 Names of Parts
4 -12
4.3.4 Analog timer Module
No.
Names
①
RUN LED
②
Analog Timer Volume Control Resistor
③
Expansion Cable
④
Expansion Cable Connecting Terminal
4.3.5 RTD Input Module
No.
Names
①
RUN LED
②
Analog Timer Volume Control Resistor
③
Expansion Cable
④
Expansion Cable Connecting Terminal
①②③④③①④②⑤
②
Page 36
Chapter 4 Names of Parts
4 -13
4.4 Communication I/F Module
4.4.1 Cnet I/F Module
1) G7L-CUEB
2) G7L-CUEC
4.4.2 Fnet I/F Module
1) G7L-FUEA
No. Names
① RS-232C connector
② Communication status LED
③ Expansion cable
④ Expansion cable connecting terminal
⑤ TM/TC selecting dip switch
No. Names
① RS-422/485 connector
② Power supply/Communication status LED
③ Expansion cable
④ Expansion cable connecting terminal
No. Names
① Station No. selecting switch
② Fnet cable connector 1 and 2
③ Expansion cable
④ Expansion cable connecting terminal
⑤ Communication status LED
Page 37
Chapter 4 Names of Parts
4 -14
4.4.3 Pnet I/F Module
1) G7L-PBEA
4.4.4 DeviceNet I/F Module
1) G7L-DBEA
4.5 Option Module
Option modules are attached the expansion slot of main unit or expansion unit, and supplies optional functions such as
memory expansion or real time clock. MASTER-K120S series have two option modules – External memory module and RTC
module.
No.
Names
Option module
Connector
No. Names
① Station No. selecting switch
② Pnet cable connector
③ Expansion cable
④ Expansion cable connecting terminal
⑤ Communication status LED
No. Names
① Station No. selecting switch(NA)
② DeviceNet cable connector
③ Expansion cable
④ Expansion cable connecting terminal
⑤ Baud rate selecting switch
⑥ Power supply/Communication status LED
②
①
Page 38
Chapter 5 Power Supply / CPU
5-1
Chapter 5. Power Supply / CPU
5.1 Power Supply Specifications
5.1.1. Standard Type
Items
K7M –
DR/DRT/DT20U
K7M –
DR/DRT/DT30U
K7M –
DR/DRT/DT40U
K7M –
DR/DRT/DT60U
Rated voltage
85 ~ 264 VAC
Rated frequency
50 / 60 Hz (47 ~ 63 Hz)
Rated current
0.5A(110VAC)/0.25A(220VAC) 0.6A(110VAC)/0.3A(220VAC)
Inrush current
Up to 30A Up to 60A
Efficiency
65% min.(rated input/maximum load)
Input fuse
2A/AC250V (Time Lag Type)
Input
Permitted Momentary
power failure
10 ms
Output voltage
DC 5V
Output(1)
Output current
1.2A 2A
Output voltage
DC 24V
Output(2)
Output current
0.2A
Power supply status indication
PWR LED On when power supply is normal
5.1.2. Economic Type
Items K7M – DR10UE K7M – DR14UE K7M – DR20UE K7M – DR30UE
Rated voltage
85 ~ 264 VAC
Rated frequency
50 / 60 Hz (47 ~ 63 Hz)
Rated current
0.3A(110VAC) / 0.15A(220VAC) 0.5A(110VAC) / 0.25A(220VAC)
Inrush current
Up to 30A
Efficiency
65% min.(rated input/maximum load)
Input fuse
2A/AC250V (Time Lag Type)
Input
Permitted Momentary
power failure
10 ms
Output voltage
DC 5V
Output(1)
Output current
0.5A 1.2A
Output voltage
DC 24V
Output(2)
Output current
0.2A
Power supply status indication
PWR LED On when power supply is normal
Page 39
Chapter 5 Power Supply / CPU
5-2
5.2 CPU Specifications
The following table shows the general specifications of the MASTER-K120S series
5.2.1. Standard Type
Specifications
Items
K7M-DR/DRT/DT20U K7M-DR/DRT/DT30U K7M-DR/DRT/DT40U K7M-DR/DR`T/DT60U
Remarks
Program control method Cyclic execution of stored program, Time-driven interrupt, Process-driven interrupt
I/O control method Indirect mode(Refresh method), Direct by program command
Program language Instruction list, Ladder diagram
Numbers of instructions Basic : 30, Application : 277
Processing speed
0.1µs/step
Program capacity 10ksteps
I/O points 20 30 40 60
P P000 ~ P63F I/O relay,TR.
M M000 ~ M191F Auxiliary relay
K K000 ~ K31F Keep relay
L L000 ~ L63F Link relay
F F000 ~ F63F Special relay
T
100msec : T000 ~ T191 (192 points)
10msec : T192 ~ T250 (59 points)
1msec : T251 ~ T255 (5 points)
-. Adjustable by parameter setting
Timer
C C000 ~ C255 Counter
S S00.00 ~ S99.99
Step controller
Memory
device
D D0000 ~ D4999 Data register
Operation modes RUN, STOP, PAUSE, DEBUG
Self-diagnosis functions Detects errors of scan time, memory, I/O and power supply
Data back-up method Latch area back-up
Max. expansion level
Up to 3 level
(External memory or RTC module can be connected as 4th expansion module)
Page 40
Chapter 5 Power Supply / CPU
5-3
(continued)
Specifications
Items
K7M-DR/DRT/DT20U K7M-DR/DRT/DT30U K7M-DR/DRT/DT40U K7M-DR/DRT/DT60U
Remarks
PID control function
Controlled by commands, Relay and PRC auto tuning,
PWM output, manual output, adjustable operation scan time,
Anti-windup, SV-Ramp, Delta MV, Position and Velocity algorithm
Cnet I/F Function
Dedicated protocol support
MODBUS protocol support RS-232C - 1port
User defined protocol support RS-485 - 1 port
No protocol support
Capacity
1 phase : 100 kHz-2 channel, 20 kHz-2 channel
2 phase : 50 kHz-1 channel, 10 kHz-1 channel
Counter function
4 different counter modes as following;
-. 1 phase operation mode.
-. 2 phase CW/CCW mode.
-. 2 phase Pulse + Direction mode.
-. 2 phase Multiplication mode(MUL4)
High-
speed
counter
Additional
function
Internal/External preset function
Latch Counter function
RPM function
Comparison Output function
Operation
Specification
N0. of control axis : 2 Axis
Control method : Point-to-Point, Speed Control
Control unit : Pulse
Positioning data : 20 data / axis(Operation step N0. 1 ~ 20)
Positioning
Positioning method : Absolute / Incremental
Operation method : Single / Repeat
Operation mode : End / Keep / Continuous
Address range : -2,147,483,648 ~ 2,147,483,647
Speed : Max. 100kpps(setting range 5 ~ 100,000)
Acceleration / Deceleration method : trapezoidal method
Return to Origin
Origin detection when approximate origin turns off
Origin detection after deceleration when approximate origin turns on.
Origin detection by approximate origin.
Position-
ing
JOG Setting range : 5~100,000 ( High / Low speed)
DRT / DT
Type Only
Pulse catch
Minimum pulse width : 10 ㎲( 2 points) and 50 ㎲(6 points)
Built-in
Function
External interrupt
10 ㎲(2 points) and 50 ㎲(6 points)
Input filter 0~1000ms(Adjustable)
Weight (g) 520 540 660 850
Page 41
Chapter 5 Power Supply / CPU
5-4
5.2.2. Economic Type
Specifications
Items
K7M-DR10UE K7M-DR14UE K7M-DR20UE K7M-DR30UE
Remarks
Program control method Cyclic execution of stored program, Time-driven interrupt, Process-driven interrupt
I/O control method Indirect mode(Refresh method), Direct by program command
Program language Instruction list, Ladder diagram
Numbers of instructions Basic : 30, Application : 269
Processing speed
0.4µs/step
Program capacity 2ksteps
I/O points 10 14 20 30
P P000 ~ P63F I/O relay
M M000 ~ M191F Auxiliary relay
K K000 ~ K31F Keep relay
L L000 ~ L63F Link relay
F F000 ~ F63F Special relay
T
100msec : T000 ~ T191 (192 points)
10msec : T192 ~ T250 (59 points)
1msec : T251 ~ T255 (5 points)
-. Adjustable by parameter setting
Timer
C C000 ~ C255 Counter
S S00.00 ~ S99.99 Step controller
Memory
device
D D0000 ~ D4999 Data register
Operation modes RUN, STOP, PAUSE
Self-diagnosis functions Detects errors of scan time, memory, I/O and power supply
Data back-up method Latch area back-up
Max. expansion level
Up to 2 level
(External memory or RTC module can be connected as 3th expansion module)
Page 42
Chapter 5 Power Supply / CPU
5-5
(continued)
Specifications
Items
K7M-DR10UE K7M-DR14UE K7M-DR20UE K7M-DR30UE
Remarks
Cnet I/F Function
Dedicated protocol support
MODBUS protocol support RS-232C - 1port
User defined protocol support RS-485 - 1 port
No protocol support
RS-485 is available
on K7M-DR10/14UE
only
Capacity
1 phase : 10 kHz-2 channel
2 phase : 5 kHz-1 channel
Counter
function
4 different counter modes as following;
-. 1 phase operation mode.
-. 2 phase CW/CCW mode.
-. 1 phase Pulse + Direction mode.
-. 2 phase Multiplication mode(MUL4)
High-speed
counter
Additional
function
Internal/External preset function
Latch Counter function
RPM function
Comparison Output function
Pulse catch
Minimum pulse width : 50 ㎲(4 points)
External interrupt
50 ㎲(4 points)
Built-in
Function
Input filter 0 ~ 1000ms(Adjustable)
Weight (g) 360 370 500 510
Page 43
Chapter 5 Power Supply / CPU
5-6
5.3 Operation Processing
5.3.1 Operation Processing Method
1) Cyclic operation
A PLC program is sequentially executed from the first step to the last step, which is called scan. This sequential
processing is called cyclic operation. Cyclic operation of the PLC continues as long as conditions do not change
for interrupt processing during program execution. This processing is classified into the following stages:
Stages Processing
-
Operation Start
Initialization
Input image area refresh
Program operation processing
Program starts
~
Program ends
Output image area refresh
END processing
Stage for the start of a scan processing. it is executed only one
time when the power is applied or reset is executed. It executes
the following processing..
▶ I/O reset
▶ Execution of self-diagnosis
▶ Data clear
▶
A
llocating I/O address and type
Program is sequentially executed from the first step to the last step
Program operation processing
The contents stored in the output image area is output to output part
when operation processing of a program is finished.
Input conditions are read and stored into the input image area
before starts processing.
Stage for return processing after the CPU part has finished 1 scan.
The END processing following processing is executed.
▶ Self-diagnosis
▶ Change the present values of timer and counter, etc.
▶ Processing data communications between computer link module
and communications module.
▶ Checking the switch for mode setting.
Page 44
Chapter 5 Power Supply / CPU
5-7
2) Interrupt operation method
If a situation occurs which is requested to be urgently processed during execution of a PLC program, this opera
tion method processes immediately the operation, which corresponds to interrupt program. The signal, which infor
ms the CPU of those urgent conditions is called interrupt signal. The MASTER-K120S CPU has three kind of int
errupt operation methods, which are internal, external and high speed counter interrupt signal methods.
5.3.2 Operation Processing at Momentary Power Failure Occurrence
The momentary power failure occurs when the input line voltage to the power supply falls down below the rated
voltage. When momentary power failure within 10ms occurs, the CPU maintain operation processing. But If is exceeds
10ms, CPU stop processing and all output turns off. And The re-start process is executed as the power is re-applied.
1) Momentary power failure within 10 ms
2) Momentary power failure exceeding 10 ms
REMARK
1) Momentary power failure
The PLC defining power failure is a state that the voltage of power has been lowered outside the allowable
variation range of it. The momentary power failure is a power failure of short interval (several to tens ms).
Input powe
r
Momentary power failure
within 1Oms
→ The operation processing is maintained
Input powe
r
Power failure exceeding 1Oms
→ The re-start process is executed as the power is re-applied.
Page 45
Chapter 5 Power Supply / CPU
5-8
5.3.3 Scan Time
The processing time from a 0 step to the 0 step of next scan is called scan time.
1) Expression for scan time
Scan time is the sum of the processing time of scan program that the user has written, of the task program processing time
and the PLC internal processing time.
(1) Scan time = Scan program processing time + Interrupt program processing time + PLC internal processing time
• Scan program processing time = The processing time used to process a user program that is not specified
to a task program.
• Interrupt program processing time = Total of the processing times of interrupt programs executed during
one scan.
• PLC internal processing time = Self-diagnosis time + I/O refresh time + Internal data processing time
+ Communications service processing time
(2) Scan time differs in accordance with the execution or non-execution of interrupt programs and communications
processing, etc.
2) Flags
Scan time is stored in the following system flag area.
• F50 : Maximum scan time (unit: 1 ms)
• F51
: Minimum scan time (unit: 1 ms)
• F52 : Current scan time (unit: 1 ms)
5.3.4 Scan Watchdog Timer
1) Watchdog timer is used to detect a delay which is attributable to abnormal operation of sequence program
(Watchdog time is set in menu of basic parameter of KGLWIN.)
2) When watchdog timer detects an exceeding of preset watchdog time, the operation of PLC is stopped immediately
and all output is off.
3) If an exceeding of preset watchdog time is expected in sequence program, use ‘WDT’ instruction.
‘WDT’ instruction make elapsed watchdog time as zero.
4) In order to clear watchdog error, restarting the PLC or mode change to STOP mode are available.
REMARK
-. Setting range of watchdog : 10 ~ 6,000ms(unit : 10ms)
Page 46
Chapter 5 Power Supply / CPU
5-9
5.3.5 Timer Processing
The MASTER-K series use up count timer. There are 5 timer instructions such as on-delay (TON), off-delay (TOFF), integral
(TMR), monostable (TMON), and re-triggerable (TRTG) timer.
The measuring range of 100msec timer is 0.1 ~ 6553.5 seconds, 10msec timer is 0.01 ~ 655.35 seconds, and that of 1msec
timer is 0.001 ~ 65.53 seconds. Please refer to the ‘MASTER-K programming manual’ for details.
1) On delay timer
The current value of timer starts to increase from 0 when the input condition of TON instruction turns on. When the
current value reaches the preset value, the timer output relay turns on.
When the timer input condition is turned off, the current value becomes 0 and the timer output relay is turned off.
2) Off delay timer
The current value of timer set as preset value and the timer output relay is turned on when the input condition of TOFF
instruction turns on. When the input condition is turned off, the current value starts to decrease. The timer output relay is
turned off when the current value reaches 0.
Preset value
Timer output relay
Timer type
input condition
Output relay
Pre value
Current value
Timer input condition
Timer out
p
ut relay
Preset value
Current value
t1
PT
PT
t3
t5
t5 + PT t1 + PT
t0+PT
t0
t5 t4+PT
t0 t1
t2 t3 t4 t5
t1 t2 t3
t4
t5
t0
t2 t4
Page 47
Chapter 5 Power Supply / CPU
5 - 10
3) Integral timer
In general, its operation is same as on-delay timer. Only the difference is the current value will not be clear when the
input condition of TMR instruction is turned off. It keeps the elapsed value and restart to increase when the input
condition is turned on again. When the current value reaches preset value, the timer output relay is turned on.
The current value can be cleared by the RST instruction only.
4)
Monostable timer
In general, its operation is same as off-delay timer. However, the change of input condition is ignored while the timer is
operating (decreasing). When current value reaches preset value the timer output relay is turned off and current value is
cleared.
Timer input condition
Timer output relay
Preset value
Current value
Timer reset input
Timer input condition
Timer output relay
Preset value
Current value
t0 t1 t2
t5
t1
t0
t2
t5+PT
t5
t3
PT = (t1-t0)+(t3-t2)
t4
t0
t1
t2
t3
t4
t0
t1
t2
t0+PT
t0
t2+PT
t2
t4+PT
t4
t4
Page 48
Chapter 5 Power Supply / CPU
5 - 11
5) Retriggerable timer
The operation of retriggerable timer is same as that of monostable timer. Only difference is that the retriggerable timer is
not ignore the input condition of TRTG instruction while the timer is operating (decreasing). The current value of
retriggerable timer will be set as preset value whenever the input condition of TRTG instruction is turned on.
REMARK
The Maximum timing error of timers of MASTER-K series is ‘1 scan time + the time from 0 step to timer instruction’
Timer input condition
Timer output relay
Preset value (PV)
Current value
PT
(On operation)
Page 49
Chapter 5 Power Supply / CPU
5 - 12
5.3.6 Counter Processing
The counter counts the rising edges of pulses driving its input signal and counts once only when the input signal is switched
from off to on. MASTER-K series have 4 counter instructions such as CTU, CTD, CTUD, and CTR. The followings shows
brief information for counter operation. Refer to the ‘MASTER-K Instruction Manual’ for details.
1) Up counter (CTU)
-. The counter output relay is turned on when the current value reaches the preset value.
-. When the reset input is turned on, the counter output relay and current value is cleared as 0.
2) Down counter (CTD)
-. When the CPU is switched to the RUN mode, the current value is set as preset value.
-. The current value is decreased by 1 with the rising edge of counter input signal.
-. The counter output relay is turned on when the current value reaches 0.
3) Up-down counter
-. The current value is increased with the rising edge of up-count input signal, and decreased with the rising edge of
down-count input signal.
-. The counter output relay is turned on when the current value is equal or greater than the preset value otherwise off.
Page 50
Chapter 5 Power Supply / CPU
5 - 13
4) Ring counter
-. The current value is increased with the rising edge of the counter input signal, and the counter output relay is turned on
when the current value reaches the preset value. Then the current value and counter output relay is cleared as 0 when
the next counter input signal is applied.
5) Maximum counting speed
(1) The maximum counting speed of counter is determined by the length of scan time. Counting is possible only when the
on/off switching time of the counter input signal is longer than scan time.
times/sec)(
1
100
)(C speed counting Maximum max
s
t
n
×=
where, n : duty (%), ts : scan time
(2) Duty
Duty is the ratio of the input signal’s on time to off time as a percentage.
If T1 ≤ T2,
)
T2T1
T1
n (%100×
+
=
If T1 > T2,
)
T2T1
T2
n (%100×
+
=
T1 T2
OFF ON
OFF
Page 51
Chapter 5 Power Supply / CPU
5 - 14
5.4 Program
5.4.1 Classifications of Program
All functional elements need to execute a certain control process are called as a ‘program’. In MASTER-K120 series, a
program is stored in the EEPROM mounted on a CPU module or flash memory of a external memory module. The following
table shows the classification of the program.
Program type Description
Scan program The scan program is executed regularly in every scan
Time-driven interrupt
program (TDI)
The TDI programs are executed with a constant time interval specified with parameter settin
g
.
Process driven interrupt
program (PDI)
The PDI programs are executed when external interrupt input is applied and the corresponding
interrupt routine is enabled by EI instruction.
High speed counter driven
interrupt program(HSCDI)
This interrupt programs are executed when comparison task signal is applied.
(Standard Type only)
Subroutine program
The subroutine programs are executed when they are called by the scan program with a CALL
instruction.
5.4.2 Program Execution Procedure
The following diagram shows that how the CPU module process programs when the CPU module is powered on or switched to
RUN mode.
Start processing
Scan program
END processing
Subroutine program
PDI program
TDI program
HSCDI program
Page 52
Chapter 5 Power Supply / CPU
5 - 15
1) Scan program
-. The scan program is executed regularly in every scan from 0 step to last step.
-. When interrupts has occurred, CPU pauses scan program and executes corresponding interrupt program first.
-. When this interrupt program finished, scan program is to resume.
2) Interrupt program
-. When an interrupt occurs, the CPU module will stop the current operation and execute the corresponding interrupt routine
first. After finish the interrupt routine, the CPU resume the sequence program from the stopped step.
-. MASTER-K102S series provides 3 types of interrupt.
• The TDI (Time driven interrupt) occurs with the constant period
• The PDI (Process driven interrupt) occurs with the status of external input.
• The HSCDI(High speed counter driven interrupt) occur with comparison task signal from high speed counter.
(Standard type only)
5.4.3 Interrupt Programs
1) Usage of interrupt program
(1) Before to use interrupt function in sequence program, the parameter setting should be done properly. Then the
corresponding interrupt routine should be written after END instruction. (Refer chapter 4 for details) If interrupt routines
are not matched with parameter settings, an error occurs and the operation of CPU will be stopped.
(2) To execute an interrupt routine, use the EI instruction to enable the corresponding interrupt. The interrupt routine is not
executed if an interrupt factor occurs before execution of an EI instruction. Once an interrupt is enabled with EI
instruction.
(3) When multiple interrupt factors occur simultaneously, interrupt routines are executed according to the priority given to
the each interrupt. If an interrupt factor that has higher priority occurs while other interrupt that has lower priority are
executing, the interrupt routine of lower priority will be stopped and the interrupt of higher priority will be executed first.
Following figure show how CPU handles multiple interrupts
Program starts
Interrupt 2 occurs
Stop main program and execute interrupt routine 2
Interrupt 1 occurs (higher priority)
Stop routine 2 and run routine 1
Finish routine 1 and return to routine2
Scan Program
Interrupt routine 1
Interrupt routine 2
1
3
5
6
7
2
4
Finish routine 2 and return to main program
1
2
3
4
5
6
7
Page 53
Chapter 5 Power Supply / CPU
5 - 16
2) parameter setting
3) Time driven interrupt
TDI occurs periodically with the constant interval assigned in parameter setting. The interrupt routine of TDI starts with the
TDINT instruction and ends with the IRET instruction.
When multiple interrupt factors occur simultaneously, interrupt routines are executed according to the priority given to the
each interrupt. If an interrupt factor has higher priority occurs while other interrupt of lower priority is executing, the interrupt
routine of lower priority will be stopped and the interrupt of higher priority will be executed first. In standard types of MK120S
series, Available TDI is P000 ~ P007 (8 points) assigned in parameter setting and period can be designated for each other.
In economic types, Available TDI is P000 ~ P003 (4 points) .
4) Process driven interrupt
In standard types of MK120S series, Available PDI is P000 ~ P007 (8 points) assigned in parameter setting.
In the parameter setting window, TDINT indicates time driven interrupt and INT indicates process driven interrupt.
PDI occurs when the input status of P000 ~ P007 is changed from Off to On or from On to Off or both.
In economic types of MK120S series, Available PDI is P000 ~ P003 (4 points), and occurs when the input status of P000 ~
P003 is changed from Off to On. It isn’t occurs falling edge of input condition.
5) HSC driven interrupt
HSCDI occurs when comparison task of HSC occurs and Available HSCDI is Ch0 ~ Ch4 (4 points) .
Page 54
Chapter 5 Power Supply / CPU
5 - 17
REMARK
Total available interrupt points is 8(In standard type).
-. Time driven interrupt + process driven interrupt + high speed counter driven interrupt ≤ 8 points
Interrupt signal is ignored when self-interrupt occurs more than 2 times during interrupt processing is executing.
5.4.4 Error Handling
1) Error Classification
Errors occur due to various causes such as PLC system defect, system configuration fault or abnormal operation
result. Errors are classified into fatal error mode, which stops system operation for system stability, and ordinary
error mode, which continues system operation with informing the user of its error warning.
The main factors that occurs the PLC system error are given as followings.
• PLC hardware defect
• System configuration error
• Operation error during execution of the user programs
• External device malfunction
2) Operation mode at error occurrence
In case of error occurrence, the PLC system write the error contents the corresponding flags and stops or conti
nues its operation complying with its operation mode.
(1) PLC hardware defect
The system enters into the STOP state if a fatal error such as the CPU module defect has occurred, and
continues its operation if an ordinary error such as operation error has occurred.
(2) System configuration error
This error occurs when the PLC hardware configuration differs from the configuration defined in the
K120S series. The system enters into the STOP state.
(3) Operation error during execution of the user programs
It the numeric operation error of these errors occurs during execution of the user program, its contents are
marked on the error flags and the system continues its operation. If operation time overruns the watchdog
time or I/O modules loaded are not normally controlled, the system enters into the STOP state.
Interrupt executing time
Interrupt signal (ex : rising edge)
ignored
Page 55
Chapter 5 Power Supply / CPU
5 - 18
(4) External device malfunction
The PLC user program detects malfunctions of external devices. If a fatal error is detected the system ent
ers into the STOP state, and if an ordinary error is detected the system continues its operation.
REMARK
1) In occurrence of a error, the state is to be stored in the representative system error flag F006.
2) For details of flags, refer to Chapter 11. Troubleshooting.
Page 56
Chapter 5 Power Supply / CPU
5 - 19
5.5 Operation Modes
The CPU operates in one of the four modes - RUN, STOP, PAUSE and DEBUG mode. The following describes ope
ration processing in each operation mode.
5.5.1 RUN Mode
In this mode, programs are normally operated.
1) Processing when the operation mode is changed.
Initialization of data area is executed when the first scan starts and The possibility of execution of the program
is decided with check on its effectiveness.
2) Operation processing contents
I/O Refresh and program operation are executed.
(1) Interrupt programs are executed with the detection of their start-up conditions.
(2) Normal or abnormal operation and mounting conditions of the loaded module are checked.
(3) Communications service or other internal operations are processed.
The first scan start in the RUN mode
Initialize data area according to the prese
t
restart mode.
Check the program and determine it can be
executed or not.
Execute input refresh
Execute programs and tasks
Check the availability of expansion units
Execute communication and internal service
Execute output refresh
Operation mode is changed?
No
Yes
Operate with new mode
Page 57
Chapter 5 Power Supply / CPU
5 - 20
5.5.2 STOP mode
In this mode, programs are not operated.
1) Processing when the operation mode is changed.
The output image area is cleared and output refresh is executed.
2) Operation processing contents
(1) I/O refresh is executed.
(2) Normal or abnormal operation and mounting conditions of the loaded module are checked.
(3) Communications service or other internal operations are processed.
5.5.3 PAUSE mode
In this mode, the program operation is temporarily stopped. If it returns to the RUN mode, the operation continu
es from the state before the stop.
1) Processing when the operation mode changes
Data registers and input image areas are not cleared and the operating conditions just before the mode chang
e is maintained.
2) Operation processing contents
(1) I/O refresh is executed.
(2) Normal or abnormal operation and mounting conditions of the loaded module are checked.
(3) Communications service or other internal operations are processed.
5.5.4 DEBUG mode(Standard type only)
In this mode, errors of a program are searched and the operation sequence is traced. Changing into this mode
is only possible from the STOP mode. In this mode, a program can be checked with examination on its executi
on state and contents of each data.
1) Processing when the operation mode changes
(1) Data area is initialized at the starting time of the mode change complying with the restart mode, which
has been set on the parameters.
(2) The output image area is cleared and input refresh is executed.
2) Operation processing contents
(1) I/O refresh is executed.
(2) Debugging process is executed complying with setting. I
(3) I/O refresh is executed after debugging process has executed to end of the program
(4) Normal or abnormal operation and mounting conditions of the loaded module are checked.
(5) Communications service or other internal operations are processed
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3) Debug operation conditions
following four operation conditions can be specified.
Operation conditions Description
executed by one
command.
When executed, Stop operation after executing one instruction
executed by break-point
settings.
When executed, Stop operation at designated break-point
executed by the
condition of the device
When executed, Stop operation by condition of designated device’s status
executed by the
specified scan time
When executed, Operates specified scan time.
4) Operation method
(1) Execute the operation after the debug operation conditions have been set in the KGLWIN.
(2) In interrupt programs, each task can be specified to operation enable/disable.
For detailed operation method, refer to the KGLWIN User’s Manual Chapter 9.
5.5.5 Operation Mode Change
1) Operation mode change methods
The following method is used to change the operation mode.
(1) Change by the mode-setting switch of CPU module.(Standard type only)
(2) Change by the KGLWIN connected with the CPU module communications port.
(3) Change by the KGLWIN connected to the remote CPU module through Cnet I/F
(4) Change by the ‘STOP’ instruction, during program execution.
(5) Change by the KGLWIN connected to the remote CPU module through Fnet(Standard type only)
2) Operation mode change by the mode-setting switch of CPU module.(Standard type only)
The following shows the operation mode change by the mode-setting switch of CPU module.
Mode setting switch position Operation mode
RUN Local RUN
STOP Local STOP
STOP → PAU / REM
Remote STOP
PAU / REM → RUN ∗ 1
Local RUN
RUN → PAU / REM * 2
Local PAUSE
PAU / REM → STOP
Local STOP
REMARK
-. If the operation mode changes from RUN mode to local RUN mode by the mode setting switch, the
PLC operates continuously without stopping.
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3) Mode change Remote operation
Remote operation mode change is available only when the operation mode is set to the remote STOP mode
(i.e., the mode setting switch position is in the STOP→ PAU/REM’).
Mode setting switch
position
Mode Change
Mode change by the
KGLWIN
Mode change using
FAM or Cnet I/F, etc.
Remote STOP Æ Remote RUN
○ ○
Remote STOP Æ Remote PAUSE X X
Remote STOP Æ DEBUG
○ ○
Remote RUN Æ Remote PAUSE
○ ○
Remote RUN Æ Remote STOP
○ ○
Remote RUN Æ DEBUG X X
Remote PAUSE Æ Remote RUN
○ ○
Remote PAUSE Æ Remote STOP
○ ○
Remote PAUSE Æ Remote DEBUG X X
DEBUG Æ Remote STOP
○ ○
DEBUG Æ Remote RUN X X
PAU / REM
DEBUG Æ Remote PAUSE X X
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5.6 Functions
5.6.1 Self-diagnosis
1) Functions
(1) The self-diagnosis function permits the CPU module to detect its own errors.
(2) Self-diagnosis is carried out when an error occurs during PLC power supply is turned on or operating process.
If an error is detected, the system stops operation to prevent faulty PLC operation.
2) WDT (Watch dog timer) function
The watch dog timer is an internal timer of a PLC to detect the error of hardware and a sequence program. it is
changeable with parameter setting.
The CPU resets the watch dog timer before step 0 is executed (after the END processing is finished). When the END
instruction has not been executed within the set value due to an error occurred in the PLC or the delay of a sequence
program, the watch dog timer will times out. When a watch dog timer error is occurred, all outputs of the PLC are turned
OFF, and the ERR LED of the CPU will flickers. (RUN LED will be turned OFF) Therefore, when use FOR ~ NEXT or
CALL instruction, insert WDT instruction to reset the watch dog timer.
Refer the MASTER-K programming manual for details on the parameter setting.
3) I/O module check function
Mounting conditions of the loaded module are checked
4) Error history
When error occurs, Corresponding error code is stored in special relay F006.
0 WDT END 0 END
WDT Reset WDT Reset WDT Reset
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5.6.2 I/O Force On/Off function
It is possible to input/output a designated data regardless of the program operation results. When used with OUTOFF
instruction simultaneously, OUTOFF is prior to I/O Force On/Off.
1) Forced I/O setting method.
-. I/O Force on/off setting is applied to input area and output area.
-. I/O Force on/off should be set for each input and output, the setting operates from the time that
Force I/O setting enable’ is set.
-. This setting can be done when I/O modules are not really loaded.
-. Select the ’set forced I/O’ from KGLWIN
-. Select the I/O area and then double click.
Click
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-. When forced I/O set enables, forced I/O function is executing.
Set ‘forced I/O data’ by bit
Set ‘forced I/O data enable’ by bit
Click
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Chapter 5 Power Supply / CPU
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2) Special data register for forced I/O
The contents of forced I/O setting is registered to special data register as below.
It is possible to use ‘forced I/O function’ to program.
Items Special Device
All Forced I/O enable M1910
Forced I/O enable by bit D4700 ~ D4763
Forced I/O set data D4800 ~ D4863
3) Force on/ off Processing timing and method
(1) Forced Input
After data have been read from input modules, at the time of input refresh the data of the junctions which
have been set to force on/off will be replaced with force setting data to change the input image area. And
then, the user program will be executed with real input data and force setting data.
(2) Forced output
When a user program has finished its execution the output image area has the operation results. At the time
of output refresh the data of the junctions which have been set to force on/off will be replaced with force se
tting data and the replaced data will be output. However, the force on/off setting does not change the output
image area data while it changes the input image area data.
(3) Precautions
y Turning the power off and on, changes of the operation mode or operation by reset switch does not change
the previous force on/off setting data. They remain within the CPU module and operation is executed with
the same data.
y Forced I/O data will not be cleared even in the STOP mode.
y When setting new data, disable every I/O settings using the setting data clear function and set the new data.
REMARK
-. For detailed operation, refer to the KGLWIN user’s Manual Chapter 7 ‘Force I/O setting.
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Chapter 5 Power Supply / CPU
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5.6.3 Direct I/O Operation function
This function is useful when reads an input relay’s state directly during execution of a program and uses in the operation, or
write the operation result directly to an output relay. Direct input/output is executed by the ‘IORF’ instruction. If this instruction is
used, the input/output image area will be directly updated and applied to the continuing operations.
REMARK
-. For detailed operation, refer to the ‘MASTER-K Manual for instruction’.
5.6.4 System error history
When the system is stopped by error occurrence, the CPU stores the error occurrence time and error code to the special data
register area. The most recent 16 error occurring times and error codes are stored in the special data register.
1) Special data register for error history
Data area Description
D4901 ~ D4904
The 1
st
error information, The 17th error information
D4905 ~ D4908 The 2nd error information :
: :
Device
D4961 ~ D4964 The 16
th
error information
2) Description of each word
Data area Contents Description
D4900 H0001 Error occurred point
D4901 H0305 Year : 03, Month : 5
D4902 h2812 Date : 28, Hour : 12
D4903 h3030 Minute : 30, Second : 30
D4904 h0001 Error code (h0001)
3) Clear error data
Use a ‘data clear’ function of KGLWIN.
REMARK
Refer to the KGLWIN user’s Manual Chapter 7, for details.
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Chapter 5 Power Supply / CPU
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5.7 Memory Configuration
The CPU module includes two types of memory that are available by the user. One is program memory, which is
used to store the user programs written to implement a system by the user. The other is data memory, which sto
res data during operation.
Bit Data Area
Word Data Area User Program Area
I/O relay
“P”
Auxiliary relay
(3,040 points)
“M”
Special auxiliary relay
(32 points)
“M”
Keep relay
(512 points)
“K”
Special relay
(1,024 points)
“F”
Link relay
(1,024 points)
“L”
P00
M000
M189
M190
M191
K00
K31
F00
F63
L00
L63
Data Register
“D”
D0000
D4500
Reserved for special usage
Timer preset value
(256 words)
T255
T000
Timer elapsed value
(256 words)
Counter preset value
(256 words)
Counter elapsed value
(
256 words
)
T255
C000
C255
C000
Parameter setting area
Word
User Program Area
(10ksteps)
(economic type : 2ksteps)
Timer (100ms)
192 points
“T”
Timer (10ms)
59 points
“T”
Timer (1ms)
5 points
“T”
T000
T191
T192
T250
T251
T255
C000
Step Controller
(100 x 100 steps)
S00.00~S99.99
“S”
S00
S99
0 ~ F 0000 ~ FFFF
P63
D4999
Counter
“C”
C255
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5.8 I/O Address Allocation
I/O No. allocation means to give an address to each module in order to read data from input modules and output data to
output modules.
Mounting module Max. module can be mounted remark
Expansion I/O module 3 2 modules in economic type
A/D, D/A conversion module 3
Analog timer module 3
Not available on economic type
Communication module 1
1) I/O No. allocation method
-. Basically, I/O allocation is fixed point method.(the area which is not used can be used internal relay)
-. The special module is not allocated.
Module I/O Allocation Remark
Input P000 ~ P03F Fixed 64 points
Main
Output P040 ~ P07F Fixed 64 points
Input P080 ~ P08F Fixed 16 points
Expansion #1
Output P090 ~ P09F Fixed 16 points
Input P100 ~ P10F Fixed 16 points
Expansion #2
Output P110 ~ P11F Fixed 16 points
Input P120 ~ P12F Fixed 16 points
Expansion #3
Output P130 ~ P13F Fixed 16 points
Special None A/D,A/T,Communication
Max. 3 expansion module is available in standard type.
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5.9 Built-in Cnet Selection Switch
5.9.1 Structure
You can see dip switches as shown when you open I/O terminal block cover.
5.9.2 Usage
Dip switch position Description
upper switch is for Cnet.
Turn upper switch on to use built-in RS-232C communication
Upper switch is for Cnet.
Turn upper off switch to use external communication modules.
* The lower switch is for O/S download setting. Don’t handle this switch.
BUILT_IN CNET
ON
ROM MODE
OFF
Terminal block cover
ON
ROM MODE
OFF
ON
ROM MODE
OFF
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Chapter 5 Power Supply / CPU
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Dip switch for Built-in Cnet is placed in deep place to prevent a mistaken operation caused by terminal block cover, etc. Use
a small driver to operate it.
Terminal block cover
Driver
Dip switch
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5.10 External Memory Module
MK120S series supplies external memory module for the user to save programs safely or download a program on the
system and use it in case of a program is damaged.
5.10.1 Structure
5.10.2 Usage
1) Saving the user’s program on the external memory module.
(1) Turn the power of the base unit off.
(2) Install the memory module.
-. When only main unit is used : Connect to the expansion connector of the basic unit.
-. When expansion units are used : Connect to the expansion connector of the last connected expansion unit.
(3) Turn the power of the main unit on.
(4) Connect KGLWIN and PLC.
(5) Select Online –Read Information – I/O Information in menu, and the following message box will displayed
Installation connector
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(6) Select Online – Flash memory – Write to external memory in menu, and the following message box will displayed.
(7) Turn the power of the main unit off.
(8) Remove the external memory module.
Through the above steps a user can save a program into the external memory module.
2) Run the PLC with a program of external memory module
(1) Turn the power of the main unit off.
(2) Install the memory module
- When only main unit is used, connect to the expansion connector of the main unit And when expansion unit is used,
connect to the expansion connector of the last connected expansion unit.
(3) Turn on the power of the main unit.
Through the above steps the user can operate the PLC with program stored in the external memory module.
1) When the PLC restarts, it always operated with the external memory module automatically if external memory is
connected.
2) Remove after writing is finished.
REMARK
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5.11 RTC Module
MK120S series supplies RTC(Real Time Clock) module for the time-scheduling control. To use RTC function with K120S series,
the RTC operation module should be attached to the expansion slot of main unit or expansion module. Clock operation by the
RTC function is continued with a super capacitor when the CPU is powered off.
5.11.1 Structure
5.11.2 Usage
1) Read RTC data
(1) Read RTC data from KGLWIN
-. Select Online –Write Information – Set PLC Clock in menu.
-. Following message box will be displayed
Installation connector
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(2) Read RTC data from special register
Description
Special register Area
(Word)
Upper byte Lower byte
Data
(BCD format)
F053 Lower 2 digits of year Month H0207
F054 Day Hour H2313
F055 Minute Second H5020
F056 Higher 2 digits of year Date H2002
Example : 2002. 07. 23. 13:50:20, Tuesday
2) Write RTC data
There is two ways to write new RTC data to the CPU.
The first one is using a graphic loader (KGLWIN). For detailed information, refer the user’s manual of KGLWIN.
The second one is write sequence program. By switching a special bit on, user can replace the current RTC data with the
reset data stored in a specified memory area. The followings are the memory address of preset data and an example
program.
Description
Data register Area
(Word)
Upper byte Lower byte
Data
(BCD format)
D4992 Lower 2 digits of year Month H0207
D4993 Day Hour H1011
D4994 Minute Second H5324
D4995 Higher 2 digits of year Date H2001
Example : 2002. 7. 10. 11:53:24, Monday
* M1904 : RTC data change bit
When the M1904 bit is switched on, the new data in D4993 ~ D4996 will be moved to F53 ~ F56. After data is
moved, M1904 has to be switched off immediately because current data will be updated every scan while
M1904 is on.
3) Date expression
Number 0 1 2 3 4 5 6
Date Sunday Monday Tuesday Wednesday Thursday Friday Saturday
REMARK
1) If RTC stops or error occurs, write new data to the RTC then error is called off.
2) There is no written clock data in the RTC when shipped.
3) Before using RTC module, write clock data to the RTC first
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Chapter 6 Input and Output Specification
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Chapter 6 Input and Output Specification
6.1 Input / Output Specifications
Digital input that offers to MASTER-K120S series are made to use both of electric current sink and electric current source.
To keep use coil load as an output module, maximum opening and shutting frequency is 1 second on and 1 second off.
The following diagram shows maximum life relay for relay output.
Frequency (
×
10,000)
100
50
30
20
10
100(A)
10 5
3 2 1
0.5
Opening/shutting of electric current
AC 125V r/load
DC 30V r/load
AC 250V r/load
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Chapter 6 Input and Output Specification
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R
R
Internal
circuit
COM
R
R
Internal
circuit
COM
C
6.2 Digital Input Specification
6.2.1 Main unit
1) Specification
Main unit
Model
Specification
K7M-DR10UE K7M-DR14UE
K7M-
DR/DRT/DT20U
K7M-DR20UE
K7M-
DR/DRT/DT30U
K7M-DR30UE
K7M-
DR/DRT/DT40U
K7M-DRT40U
K7M-
DR/DRT/DT60U
K7M-DRT60U
Number of input points 6 points 8 points 12 points 18 points 24 points 36 points
Insulation method Photo coupler
Rated input voltage DC 24V
Rated input current 7 mA (Standard Type P0~P3:9mA, Economic Type P0,P1:9mA)
Operating voltage range DC20.4 ~ 28.8V (ripple: less than 5%)
Max. simultaneous input points 100% simultaneously On
On voltage / On current DC19V or higher / 5.7 mA or higher
Off voltage / Off current DC6V or lower / 1.8 mA or lower
Input impedance
Approx.3.3 kΩ(Standard Type P0~P3:2.7 kΩ, Economic Type P0,P1:2.7 kΩ)
Off → On
0,1,2,5,10,20,50,100,200,500,1000ms (Default : 10ms)
Response time
On → Off
0,1,2,5,10,20,50,100,200,500,1000ms (Default : 10ms)
Common terminal 6 points / COM 8 points/COM 12 points/COM 18 points/ COM 12points/COM 18points/COM
Operating indicator LED turns on at ON state of input
2) Circuit diagram
Standard Type P000 ~ P001
Economic Type None
Standard Type P002 ~
Economic Type P000 ~
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Chapter 6 Input and Output Specification
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3) Input wiring
Main unit’s wiring method is as follows. DC input specifications offered by MASTER-K120S is to be used for both electric
current sink and electric current source.
(1) Main unit
DC24V DC24V
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Chapter 6 Input and Output Specification
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4) Example of external devices.
To connect with external device of DC output type into DC input module, wire depending on the type of the external device
as shown.
External device
Input
Contact points
NPN open collector output type
NPN current output type
PNP current output type
Relay
IN
COM
Sensor
IN
COM +
Power fo
r
sensor
Output
0V
+
IN
COM
-
Power for
sensor
Output
0V
+
Voltage output type
IN
COM +
Output
0V
+
Power for
sensor
7mA
Power for
sensor
IN
COM
+
Output
0V
+
Constant
] current
Same power for sensor
and input
7mA
7mA
7mA
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6.2.2 Expansion Module
1) Specifications
Expansion Module
Model
Specification
G7E-DR10A G7E-DC08A G7E-DR20A
Number of input points 6 points 8 points 12 points
Insulation method Photo coupler
Rated input voltage DC 24V
Rated input current 7 mA
Operating voltage range DC 20.4 ~ 28.8V (ripple: less than 5%)
Max. Simultaneous input points 100% simultaneously On
On voltage / On current DC19V or higher/ 5.7 mA or higher
Off voltage / Off current DC6V or lower / 1.8 mA or lower
Input impedance Approx. 3.3 kΩ
Off → On 0,1,2,5,10,20,50,100,200,500,1000ms (Default : 10ms)
Response time
On → Off 0,1,2,5,10,20,50,100,200,500,1000ms (Default : 10ms)
Common terminal 6 points / com 4 points / com 12 points / com
Operating indicator LED turns on at ON state of input
2) Circuit diagram
It’s the same with the one for the main unit.
3) Input wiring
DC24V
DC24V
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6.3 Digital Output Specification
6.3.1 Main unit (Relay Output)
1) Specification
(1) Standard type
Main Unit
Model
Specifications
K7M-DR20U
(K7M-DRT20U)
K7M-DR30U
(K7M-DRT30U)
K7M-DR40U
(K7M-DRT40U)
K7M-DR60U
(K7M-DRT60U)
Output point 8 points(4 points) 12 points(8 points) 16 points(12 points) 24 points(20 points)
Insulation method Relay insulation
Rated load voltage/current DC24V / 2A (r/load), AC220V / 2A (COS Ψ = 1)/1 point , 5A / 1COM
Min. load Voltage/current DC5V / 1mA
Max. load voltage/current AC250V, DC110V
Current leakage when off 0.1mA (AC220V, 60Hz)
Max. On/off frequency 1,200 times/hr
Surge Absorber None
Mechanical More than 20,000,000
Rated on/off voltage/current load 100,000 or more
AC200V / 1.5A, AC240V / 1A (COSΨ = 0.7) 100,000 or more
AC200V / 1A, AC240V / 0.5A (COSΨ = 0.35) 100,000 or more
Life
Electrical
DC24V / 1A, DC100V / 0.1A (L / R = 7ms) 100,000 or more
Off → On 10 ms or lower Response
time
On → Off 12 ms or lower
Operation indication LED is on at on status of output
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Chapter 6 Input and Output Specification
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(2) Economic type
Main Unit
Model
Specifications
K7M-DR10UE K7M-DR14UE K7M-DR20UE K7M-DR30UE
Output point 4 points 6 points 8 points 12 points
Insulation method Relay insulation
Rated load voltage/current DC24V / 2A (r/load), AC220V / 2A (COS Ψ = 1)/1 point , 5A / 1COM
Min. load Voltage/current DC5V / 1mA
Max. load voltage/current AC250V, DC110V
Current leakage when off 0.1mA (AC220V, 60Hz)
Max. On/off frequency 1,200 times/hr
Surge Absorber None
Mechanical More than 20,000,000
Rated on/off voltage/current load 100,000 or more
AC200V / 1.5A, AC240V / 1A (COSΨ = 0.7) 100,000 or more
AC200V / 1A, AC240V / 0.5A (COSΨ = 0.35) 100,000 or more
Life
Electrical
DC24V / 1A, DC100V / 0.1A (L / R = 7ms) 100,000 or more
Off → On 10 ms or lower Response
time
On → Off 12 ms or lower
Operation indication LED is on at on status of output
2) Circuit
L
Internal
circuit
COM
L
Relay
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Chapter 6 Input and Output Specification
6-8
3) Output wiring
(1) Main unit
DC5V
DC24V AC110/220V
DC24V LDC24V
LLL
L L
L L L
L
L
L
L
LLL
L
LLL
LL
L
L
U
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6.3.2 Main unit (TR Output : DRT/DT type only)
1) Specification
Main Unit
Model
Specifications
K7M-DRT/DT20U K7M-DRT/DT30U K7M-DRT/DT40U K7M-DRT/DT60U
Output point 4 points / 8 point 4 points / 12 point 4 points / 16 point 4 points / 24 point
Insulation method Photo coupler insulation
Rated load voltage DC12/24V
Operation load Voltage DC10.2 ~ 26.4V
Max. load current 0.5A/1 point (DRT Type P40~P43: 0.1A/1point, DT Type P40~P41 0.1A/1point)
Current leakage when off Less than 0.1mA
Voltage drop when on Less than DC0.3V
Surge Absorber Zener diode
Inrush current Less than 4A, 10ms
Off → On 0.2 ms or lower Response
time
On → Off 0.2 ms or lower
Operation indication LED is on at on status of output
R2
R
3
24V
TR1
P40,P41
Internal
Circuit
P/C
R2
R
3
24V
TR1
P42,P43
Internal
Circuit
1) Output TR P000 ~ P003 of DRT Type(K7M-DRT20/30/40/60U) are for positioning function.
2) They also can be used as general transistor output, but can’t be used for AC load. When used for AC loads, they can be destroyed.
REMARK
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2) Output wiring
AC100-240
V
FG
COM0
P40
COM1
P41
COM2
P42
COM3
P43
P
LLL
L
DC12V/24V
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6.3.3 Expansion Module
1) Specifications
Expansion Module
Model
Specifications
G7E-DR10A G7E-DR08A G7E-RY08A G7E-DR20A
Output point 4 points 8 points
Insulation method Relay insulation
Rated load Voltage/current
DC24V / 2A (Resistive load), AC220V / 2A (COS Ψ = 1) / 1 point 5A / 1COM
Min. load Voltage/current DC5V / 1mA
Max. load voltage/current AC250V, DC110V
Current leakage when off 0.1mA (AC220V, 60Hz)
Max. on/off frequency 1,200 times/hr
Surge Absorber None
Mechanical More than 20,000,000
Rated on/off voltage/current load 100,000 or more
AC200V / 1.5A, AC240V / 1A (COSΨ = 0.7) 100,000 or more
AC200V / 1A, AC240V / 0.5A (COSΨ = 0.35) 100,000 or more
Life
Electrical
DC24V / 1A, DC100V / 0.1A (L / R = 7ms) 100,000 or more
Off → On
10 ms or lower
Response time
On → Off
12 ms or lower
Operation indication LED is on at on status of output
2) Circuit
It’s the same with the output circuit of the main unit.
3)
Output wiring
DC5V
L
L L L
DC24V
AC110/220V
L
L
DC5V/24V
AC110/220V
…
…
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Chapter 6 Input and Output Specification
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Expansion Module
Model
Specifications
G7E-TR10A
Output point 10 points
Insulation method Photo coupler insulation
Rated load Voltage/current DC12V/24V
Operating load voltage range DC10.2 ~ 26.4V
Max. load current 0.5A/1 point, 4A/1COM
Current leakage when off 0.1mA or lower
Max. inrush current 4A/10ms or lower
Max. Voltage drop when on DC 1.5V or lower
Surge Absorber Clamp diode
Off → On 2 ms or lower
Response time
On → Off 2 ms or lower
Common method 10 points/ 1COM,
Operation indication LED is on at on status of output
REMARK
1) Refer to 7.2 ‘Special Functions’ for the special modules
…
DC12/24V
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Chapter 7 Usage of Various Functions
7-1
Chapter 7. Usage of Various Functions
7.1 Built-in Functions
7.1.1 High-speed counter function
This chapter describes the specification, handling, and programming of built-in high speed counter of MASTER-K120S. The
built-in high speed counter of MASTER-K120S(hereafter called HSC) has the following features;
Function Description
Counter format
• Linear counter : Up/Down counter.
Counting range is from -2,147,483,648 to 2,147,483,647
• Ring counter : Counter value rotates from 0 to (set value-1)
Counter mode
4 counter functions as followings
• 1-phase operation mode
• 1-phase pulse + direction mode : Up / down is selected by direction pulse
• 2-phase CW/CCW mode : Up / down is selected by CW or CCW pulse input
• 2-phase multiplication mode : Up / down is automatically selected by the phase
difference between A-phase and B.(multiplied by 4)
Preset function Change current value to preset value.
Latch counter Latches current value.
Comparison output When current value is equal to comparison value, turns on the output contact points or
executes interrupt program
Additional
function
RPM function Calculate the RPM(Rotates Per Minute) of input pulse
1) Performance Specifications
Items Specifications
Standard Type Economic Type
Points
1 phase : 4 points, 2 Phase : 2 points 1 phase : 2 points, 2 Phase : 1 points
Max. counting speed
1-phase 100kHz/ 2-phase 50kHz ( Ch0, Ch1)
1-phase 20kHz/ 2-phase 10kHz ( Ch2, Ch3)
1-phase 10kHz/ 2-phase 5kHz
( Ch0, Ch1)
Input types A-Phase, B-Phase, Preset input
Counting ranges from -2,147,483,648 to 2,147,483,647(Binary 32 bits)
1-phase Up counter
1-phase Pulse +
direction input
A-Phase : Input pulse, B-Phase : Direction pulse
2-phase
CW/CCW mode
A-Phase : Up counting pulse, B-Phase : Down counting pulse
Up / Down
selection
2-phase
multiplication mode
Auto-select by phase difference of A-phase and B
Additional function Ring counter, Latch counter, Preset, Comparison output, RPM function
2) Input specification
Items Specifications Items Specifications
Rated input 24VDC (7mA) Rated input 24VDC (7mA)
On voltage 20.4 ~ 28.8VDC On voltage 20.4 ~ 28.8VDC
Off voltage 6VDC or lower
On delay time
200 or lower
A / B phase
Off voltage 6VDC or lower
Preset input
Off delay time
200 or lower
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3) Names of wiring terminals
Names Usage
No.
Terminal
No.
1Phase 2Phase 1Phase 2Phase
P00 Ch0 Input Ch0 A Phase Input Counter input terminal A Phase Input terminal
P01 Ch1 Input Ch0 B Phase Input Counter input terminal B Phase Input terminal
P02 Ch2 Input Ch2 A Phase Input Counter input terminal A Phase Input terminal
P03 Ch3 Input Ch2 B Phase Input Counter input terminal B Phase Input terminal
P04 Ch0 Preset 24V Ch0 Preset 24V Preset input terminal Preset input terminal
P05 Ch1 Preset 24V - Preset input terminal P06 Ch2 Preset 24V Ch2 Preset 24V Preset input terminal Preset input terminal
P07 Ch3 Preset 24V - Preset input terminal COM0 Input Common Input common terminal
< Standard Type >
Names Usage
No.
Terminal
No.
1Phase 2Phase 1Phase 2Phase
P00 Ch0 Input Ch0 A Phase Input Counter input terminal A Phase Input terminal
P01 Ch1 Input Ch0 B Phase Input Counter input terminal B Phase Input terminal
P02 Ch0 Preset 24V Ch0 Preset 24V Preset input terminal Preset input terminal
P03 Ch1 Preset 24V - Preset input terminal -
< Econnomic Type >
P00
P01
P02
P03
P04
⑨
Input pulse
Preset input
24G
COM1
24V
P22
COM0
P10
P11P0F
P05
P06
P07
P08
P23
④ ⑤ ⑥ ⑦ ⑧
②
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4) External interface circuit
Signal name
I/O Internal circuit
Termi
nal
No.
1Phase 2Phase
Operati
on
Input warranted
voltage
On 20.4~28.8V
P00
Ch0
Input
pulse
Ch0 A
Phase
Input
Off 6V or lower
On 20.4~28.8V
P01
Ch1
Input
pulse
Ch0 B
Phase
Input
Off 6V or lower
On 20.4~28.8V
P02
Ch2
Input
pulse
Ch2 A
Phase
Input
Off 6V or lower
On 20.4~28.8V
P03
Ch3
Input
pulse
Ch2 B
Phase
Input
Off 6V or lower
Input
COM
0
Common
On 20.4~28.8V
P04
Ch0
Preset
input
Ch0
Preset
input
Off 6V or lower
On 20.4~28.8V
P05
Ch1
Preset
input
Off 6V or lower
On 20.4~28.8V
P06
Ch2
Preset
input
Ch2
Preset
input
Off 6V or lower
On 20.4~28.8V
P07
Ch3
Preset
input
Off 6V or lower
Input
COM
0
Common
5) Wiring instructions
A high speed pulse input is sensitive to the external noise and should be handled with spe cial care. When wiring the built-in
high speed counter of MASTER-K120S, take the following precautions against wiring noise.
(1) Be sure to use shielded twisted pair cables. Also provide Class 3 grounding.
(2) Do not run a twisted pair cable in parallel with power cables or other I/O lines which may generate noise.
(3) Before applying a power source for pulse generator, be sure to use a noise-protected power supply.
(4) For 1-phase input, connect the count input signal only to the phase A input; for 2-phase input, connect to phases A and B.
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
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Chapter 7 Usage of Various Functions
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6) Wiring example
(1) Voltage output pulse generator
Pulse Generator
CHSC
A
B
COM
24V
24VG
(2) Open collector output pulse generator
Pulse Generator
CHSC
A
B
COM
24V
24VG
Pulse Generator
Pulse Generator
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7) Instruction(HSCST)
Available device
Flag
Instruction
M P K L F T C S D #D integer
No. of
steps
Error
(F110)
Zero
(F111)
Carry
(F112)
S
SV
CV
7/9
S Channel which is designated at parameter(0~3)
SV
Set value (binary 32 bits)
Range : (-2,147,483,648 ~ 2,147,483,647)
Error
(F110)
Error flag turns on when designating area is over
CV Current value of HSC stored area
(1) Functions
• When input condition turns on, corresponding high speed counter is enabled.
• When input condition turns off, high speed counter stop counting and turns output point off . The current value is retained.
• The high speed counter can counts from -2,147,483,648 to 2,147,483,647(binary 32bits).
• When current value is greater than set value, output point F17*(* is channel number) turns on and it turns off when current
value is less than set value.
• If current value is greater than 2,147,483,647, carry flag F18* turns on and and it turns off when input condition turns off.
If HSC designated as ring counter, carry flag is set when current value reaches set value.
• If current value is smaller than -2,147,483,648, borrow flag F19* turns on and and turns off when input condition turns off
If designated as ring counter, if current value is 0, borrow flag is set at next pulse’s rising edge and current value goes ‘set
value –1’(in down counter mode)
(2) Error code
Code Error Corrective Actions
H’10 Mode setting error
When Ch0 is set as 2-Phase, Ch 1 can’t be used and Ch3 can’t be
used if Ch2 is set to 2-Phase.
H’11 Ring counter setting error Adjust the range of ring counter within 2 ~ 2,147,483,647.
H’12 SV2 setting error Set SV2 greater than SV1 if zone comparison set is selected.
H’13 Ring counter and SV2 setting error
Adjust the range of ring counter within 2 ~ 2,147,483,647 Set SV2
greater than SV1if zone comparison set is selected
Designation
Flag set
HSCAST High speed counter
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8) Parameter Setting
(1) Format setting
(a) Linear counter
• If HSC is designate as Linear counter, it can counts from -2,147,483,648 to 2,147,483,647.
• The carry flag F18*(* is channel number) turns on when the current value of high speed counter is overflow during up
counting and HSC stop counting.
• The borrow flag F19*(* is channel number) turns on when the current value of high speed counter is underflow during
down counting and HSC stop counting.
• Carry and borrow flags can be reset by preset operation and HSC can re-starts its operation.
(b) Ring counter
• If HSC is designate as Ring counter, it can counts from 0 to set value.
• The carry flag turns on when the current value of high speed counter reaches set value during up counting and current
value is changed to 0.
• The borrow flag turns on when the current value of high speed counter is reaches 0 during down counting and current
value is changed to ‘set value –1’.
• When set value is out of range(2 ~ 2,147,483,647), Ring counter setting error(h’11) occurs and HSC operates as linear
counter.
• When current value is changed to out of range(2 ~ 2,147,483,647) by preset operation, Ring counter setting error(h’11)
occurs and HSC operates as linear counter.
• The ring counter setting error can be corrected by re-start of instruction(HSCST) only.
Increasing
Decreasing
Carry occurs
Borrow occurs
0
Current value
Increasing
Decreasing
Carry occurs
Borrow occurs
0
Current value
-
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(2) Mode setting
(a) 1-phase operation mode
- Current value increases by 1 at the rising edge of input pulse.
(b) 1-phase pulse + direction mode
- Current value increases by 1 at the rising edge of A-Phase pulse when B-phase is ‘low’ state.
- Current value decreases by 1 at the rising edge of A-Phase pulse when A-phase is ‘High’ state.
(c) 2-phase CW/CCW mode
- Current value increases by 1 at the rising edge of A-Phase pulse when B-phase is ‘low’ state.
- Current value increases by 1 at the rising edge of B-Phase pulse when A-phase is ‘low’ state.
A-p
hase input pulse
Current value
B-phase input pulse
Current value
A-p
hase input pulse
1 2 3 4 5
B-phase input pulse
Current value
A-p
hase input pulse
Low
Hi
g
h
10 11 10 9 8
10 11 12 11 10
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(d) 2-phase multiplication mode (MUL4)
- Up or Down is set automatically by the phase difference between A and B phase.
• Up counter
- At the rising edge of A-Phase pulse when B-phase is ‘low’.
- At the falling edge of A-Phase pulse when B-phase is ‘high’.
- At the rising edge of B-Phase pulse when A-phase is ‘high’.
- At the falling edge of B-Phase pulse when A-phase is ‘low’.
• Up counter
- At the rising edge of A-Phase pulse when B-phase is ‘high’.
- At the falling edge of A-Phase pulse when B-phase is ‘low’.
- At the rising edge of B-Phase pulse when A-phase is ‘low’.
- At the falling edge of B-Phase pulse when A-phase is ‘high’.
(3) Preset setting
(a) Internal Preset
- Set internal preset area and preset value.
- Current value of high speed counter is replaced with preset value at the rising edge of internal preset device.
(b) External Preset
- Set external preset area and preset value.
- External devices are fixed as following
Ch0 : P4, Ch1 : P5, Ch2 : P6, Ch3 : P7
- Current value of high speed counter is replaced with preset value at the rising edge of external preset device.
B-phase input pulse
Current value
A-p
hase input pulse
10 11 12 13
14 15 16 17 18 17 16 15 14 13
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Chapter 7 Usage of Various Functions
7-9
(4) Latch Counter setting
If this function is enabled, Current value of high speed counter is always retained.
(5) Comparison Output setting
(a) Comparison set
- When current value of HSC is equal to SV1, corresponding output point turns on.
- P40 ~ P47 are available for comparison output point.
Latches CV
0
Current value
Time
Latches CV
- When power supply is off.
- When is ‘Stop’ or ‘Pause’
- When input condition of
‘HSCST’ is off
Current value
Out
p
ut Contact
In
p
ut pulse
98 99 100 101 102
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Chapter 7 Usage of Various Functions
7-10
(b) Zone Comparison Set
- When current value of HSC isn’t less than SV1 and more than SV2. corresponding output point turns on.
- P40 ~ P47 are available for comparison output point.
- If SV2 is less than SV1, SV2 setting error(h’12) occurs and zone comparison set is disabled.
(c) Comparison Task
- If Comparison Task is selected in parameter window, corresponding interrupts is enabled.
- When current value of HSC is equal to SV1, corresponding interrupt program is executed.
- For the details about programming, refer to ‘KGLWIN User’s Manual’.
Current value
In
p
ut pulse
999 1000 2000 2001
Output point
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Chapter 7 Usage of Various Functions
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(6) RPM setting
- Can calculates RPM of input pulse
- RPM is stored in designated device.
- The RPM is expressed as:
cycle[ms]refresh rotateper Pulses
60,000Value)Last -Value(Current
RPM
×
×
=
(a) Examples of Program
- Refresh cycle : 1000ms, Pulses per rotate : 60, RPM save area : D0
Last value = 500(Assumption), Current value = 1000
RPM = { (1000 – 500) * 60,000} / {60 * 1000} = 500
Last value = 1000, Current value = 2000
RPM = { (2000 – 1000) * 60,000} / {60 * 1000} = 1000
Last value = 2000, Current value = 4000
RPM = { (4000 – 2000) * 60,000} / {60 * 1000} = 2000
Current value
Time
In
p
ut pulse
D0
,
D1
1000 2000 2001 4000
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9) Programming example
(1) Parameter setting
• Channel : Ch0
• Counter format : Ring counter ( 0 ~ 100,000)
• Counter mode : 2-phase multiplication mode
- P0 : A-phase pulse input, P1 : B-phase pulse input
• Preset
- Preset type : internal preset (M100)
- Preset value : 0
• Last counter setting
- None
• Comparison output
- Output mode : Zone comparison set
- SV1 : 10,000 SV2 : 20,000
- Output point : P43
• RPM setting
- Refresh cycle : 100(*10ms)
- Pulses per rotate : 60
- RPM save area : D100
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(2) Programming
• When M0 turns on, HSC starts its operation
• If current value is not less than 50,000, F170 turns on.
• Current value is saved in D0(double word).
Remark
The contact point which is designated as HSC input can’t be used for pulse catch or external interrupt.
Duplicated designation may cause faults.
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7.1.2. Pulse Catch Function
In the main unit, 4(economic type) or 8(standard type) points of pulse catch input contact points are internalized. Through using
this contact point, short pulse signal short can be taken which can not be executed by general digital input.
1) Usage
When narrow width of pulse signal is input, a trouble occurs which can not be detected by general digital input, so the
operation does not perform as user's intention. But in this case through pulse catch function even narrow interval of pulse
signal as 10 min. can be detected.
2) Minimum input pulse width.
Type Standard Economic
10
2 points (P0, P1) None
50
6 points (P2 ~ P7) 4 points (P0 ~ P3)
3) Operating Explanation
input signal
input image data
step executing contents
scan1
CPU senses input when pulse signal, min. 10 , is input, then saves the status.
scan2 used to turn on the region of input image
scan3 used to turn off the region of input image
4) using method
(1) click twice the basic parameter on the project window of KGLMIN
(2) Select no. to use for pulse catch input of the basic parameter window.
For details of KGLWIN refers to the manual.
scan 1
scan 2
scan 3
10
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1) Pulse catch input contact points operate as general digital input if they are not designated as pulse catch input.
2) Do not designate HSC input points as pulse catch input.
Remark
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7.1.3 Input Filter Function
External input of MASTER-K120S selects input on/off delay time from the range of 0-1000ms of KGLWIN. Credibility
secured system may be established by adjustment of input correction no. through using environment.
1) Usage
Input signal status affects to the credibility of system in where noise occurs frequently or pulse width of input signal affects
as a crucial factor. In this case the user sets up the proper input on/off delay time, then the trouble by miss operation of input
signal may be prevented because the signal which is shorter than set up value is not adopted.
2) Operating Explanation
narrower width pulse than input correction no. is not considered as input signal
3) Using method
(1) Click twice the basic parameter on the project window of KGLWIN.
(2) The value of filter can be set up as one of 0,1,2,5,10,20,50,100,200,500,1000ms to the input on/off delay time of the
basic parameter window.(Input on/off delay time is set up as default value of 10ms)
(3) Set up input on/off delay time is conformed to all input is used.
The range of 0-1000ms
input signal
input image data
in
p
ut signal
input image data
time
Input on/off delay time.(filter time
)
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