Application Manual
Page
Limited Warranty and Imitation of Liability
Page
Safety Precautions
Required
Prohibited
Page
Table of Contents
Input/Output Setting
High-Speed Counter Single-Phase
High-Speed Counter Two-Phase Counter
Memory Size and Memory Assignment
Connecting to the Ports
Syntax and Assembler Error Codes
Operation Error Codes
Error Display and Actions
Memo
Remote maintenance through modem connection
Easily adjustable potentiometer
Maintaining programs without a battery
Compliant with overseas specifications as standard
Memo
System Overview
23,28-point type system configuration diagram
Device name Description
Chapter Function and Performance Specifications
General Specifications
Function Specifications
Timer counter is provided internally
Device that has been connected
WR, DR
Off to stop operation
Is running, operation stops and the outputs are aborted OFF
General purpose port
R7EC
Interrupt input
Performance Specifications
Calculation Specifications
Input Specifications
Circuit diagram
Specification
OFF → on
Output Specifications
Y100 of EH-*23DRP/A23DRT/*28DRP/*28DRT
Output specification
Ms max 24 V DC 0.2A
Load current Common Output
Ms max 24 V DC 0.2A Response time
Number of output points See Chapter Number of common
Maximum Circuit Load current Common Output
Externally supplied power
Ms max
Maximum Circuit A 240 V AC Load current Common
At 1 cycle or less/common
High-Speed Counter Specifications
PWM Output/Pulse Train Output Specifications
Analogue Input Specifications
Point and 28-point type 10/14/28-point Relay Output
Analogue Output Specifications
Circuit diagram 23 points type
Circuit diagram Analog expansion unit
Module type Points type module Analog exp. unit
Potentiometer Analogue Input Specifications
Interrupt Input Specifications
Backup
Expansion
Clock Function
Power Supply for Sensor
Product lineup
Others Model
10-Point Basic Unit
Name and function of each part Type
Detailed explanation Remarks
14-Point Basic Unit
EH-*14
23-Point and 28-Point Basic Unit
EH-*23 EH-*28
To the right
Expansion Unit
Name and function of each part
Terminal Layout and Wiring
Power supply 24V DC Load power supply 24V DC 100-240V AC
RUN
AC power supply 100-240V AC Load power supply 24V DC
DC power supply 24V DC
AC power supply
Input
Power supply 24V DC 12/24V DC
Power supply 24V DC Output Load power supply 12/24V DC
Power supply 24V DC
Output Load power supply 12/24V DC
WRF06E
Output Power supply 100-240V AC
Output Power supply 24V DC
Power supply 24V DC Output
Output Power supply
100-240V AC Input Output
24V DC 12/24V DC
Input Output Power supply 100-240V AC
Load power supply 24V DC, 100-240V AC Output
EH-D6EAN Example of current input and current output
Current input ⋅
IO6 OC7 VO7
OC6 VO6 IO7
Weights and Power Consumption
Type Weight
100V AC 264V AC 24V DC Normal Rush
Exterior Dimensions
140 150
Memo
Instruction Classifications
List of Instructions
Instruction classification table Description Type
TD, SS, CU, CT
Nand
TD, SS, CU CTU, CTD, CL
RES
Basic instructions timer, counter
Basic instructions relational box
WX, WY, WR
DX, DY, DR
Item number Ladder symbol Instruction symbol
BCD
DR, DM
WR, WM
Number
Instruction symbol Process descriptions
Instruction symbol Process descriptions Name
WY, WR, WM
Processing time when n=1
BCD →
WM, TC
FUN instructions
PWM
BOX
Instruction Specification Details
Item number
Ladder format Condition code
Remark
Bit Word Double word Constant Usable I/O
Basic instructions-3
Contact serial connection AND, ANI
ANI
Basic instructions-5
Contact parallel connection OR, ORI
Condition
ORI
Basic instructions-7
Negation not
Instruction format
Not
Basic instructions-8
Leading edge detection and DIF, or DIF
DIF n
Number To 511 Decimal
Basic instructions-9
Trailing edge detection and DFN, or DFN
DFN n
Bit Word Double word
Usable I/O Other
Usable I/O Bit
Word Double word Constant Other
WX WY WM DX DY TD, SS
Set start/reset cancel master control MCS, MCR
Basic instructions-13
Remark
Upper case MCS
Ladder format
MPS
MRD
MPP
Basic instructions-18
Logical block serial connection ANB
See Function column
Basic instructions-19
Logical block parallel connection ORB
Basic instructions-20
Processing box start and end Processing BOX
Bit Word
Indicates the start and end of the processing box
Basic instructions-21
Relational box start and end Relational BOX
Function Indicates the start and end of the relational box
On delay timer on Delay Timer
Basic instructions-22
OUT TD n t s
Time chart
Basic instructions-23
Single shot Single Shot
OUT SS n t s
TMR, CU
SS11 turns off when set value ≥ progress value
Progress value is updated
Conditions are ignored because it uses edge trigger
SS11 is turned on at the leading edge of X00001 again,
Basic instructions-24
Counter Counter
OUT CU n s
Counter number To 255 Decimal Set value To 65535 Decimal
Ignored X00005 CL15 CU15 Set value Progress Value CU15 TC15
UP/DOWN Counter
CTU17
Basic instructions-27
Counter clear Counter Clear
OUT CL n s
Counter number To 255 Decimal
Word Double word
Command format
Condition Steps
Double word LD, and s1S==s2 Or s1S==s2
When WR0000 ≠ WR0002, R003 turns on
Basic instructions-30
Relational box Relational BOX
26.8 Lower case DW
BOX
Double word LD, and s1Ss2 Or s1Ss2
When WR0000 WR0002, R005 turns on
Basic instructions-32
Word See Notes 37.5 Double word
S1 s2 Steps
When DR0000 DR0002, R006 turns on signed
Basic instructions-33
SignedRelational box Signed Relational BOX
Off
When WR0000 ≤ WR0002, R007 turns on
Basic instructions-34
≤ Relational box ≤ Relational BOX
S1 = s2
Double word LD, and s1S=s2 Or s1S=s2
Arithmetic instructions-1
Substitution statement Assignment Statement
= s
See following table
X00001
Substituted into WR0000 at the leading edge of input
Designated by WR0000 + WM000
Arithmetic instructions-2
Binary addition Binary Addition
Word Double word
Substitution destination Augend Addend
Arithmetic instructions-3
115 Lower case DW
Word 177 Double word
Arithmetic instructions-4
Binary subtraction Binary Subtraction
Substitution destination Minuend Subtrahend
Positive Negative
Arithmetic instructions-5
BCD subtraction BCD Subtraction
104 Lower case DW
Word 163 Double word
Arithmetic instructions-6
Binary multiplication Binary Multiplication
Word 112 Double word
Substitution destination Multiplicand Multiplier
Arithmetic instructions-7
BCD multiplication BCD Multiplication
164 Lower case DW
Word 447 Double word
Signed binary multiplication Signed Binary
143
Multiplication
Arithmetic instructions-9
Binary division Binary Division
= s1 / s2
= s1 / s2 Word 110 Double word
Arithmetic instructions-10
BCD division
= s1 B/ s2
152 Lower case DW
Arithmetic instructions-11
Signed binary division
= s1 S/ s2
101
Arithmetic instructions-12
Logical or
= s1 or s2
Upper case B
Arithmetic instructions-13
Logical
= s1 and s2
= s1 and s2 Bit, word Double word
Arithmetic instructions-14
Exclusive or
= s1 XOR s2
= s1 XOR s2 Bit, word Double word
Arithmetic instructions-15
= Relational expression
= s1 == s2
= s1 == s2 Is a word Is a double word
Signed = Relational expression
= s1 S== s2
108
= s1 S== s2 Is a double word
Arithmetic instructions-17
= s1 s2
= s1 s2 Is a word Is a double Word Bit Double word
Signed Relational expression
= s1 S s2
= s1 S s2 Is a double word
Arithmetic instructions-19
= s1 s2 Is a word Is a double word
Arithmetic instructions-20
Arithmetic instructions-21
≤ Relational expression
= s1 = s2
= s1 = s2 Is a word Is a double word
Signed ≤ Relational expression
= s1 S= s2
= s1 S= s2 Is a double word
Application instructions-1
Bit set
Bset d, n
Bit location to be set Constant is set Decimal
Bit reset
Application instructions-2
Bres d, n
Application instructions-3
Bit test
BTS d, n
Also, the 20th bit of DR0102 is reset to 0 by Bres
Also, the 20th bit of DR0104 is checked by BTS
Application instructions-4
Shift right
SHR d, n
After execution
DIF1
Application instructions-5
Shift left
SHL d, n
Application instructions-6
Rotate right
ROR d, n
Application instructions-7
Rotate left
ROL d, n
B31 DR0002
Application instructions-8
Logical shift right
LSR d, n
Application instructions-9
Logical shift left
LSL d, n
If d is a word
Application instructions-10
BCD shift right
BSR d, n
Application instructions-11
BCD shift left
BSL d, n
Application instructions-12
Block transfer Move
Below
If n is a word
Words of data are transferred
Application instructions-13
Copy
Copy d, s, n
Below Copy d, s, n
Default value H2020 is set in the range of WR0100 to WR01FE
Application instructions-14
Block exchange Exchange
R7F4 R7F3 R7F2 R7F1
XCG d1, d2, n
Reverses the contents of d
Application instructions-15
To be reversed
Application instructions-16
Twos complement Negate
NEG d
To take complement
Application instructions-17
Absolute value
ABS d, s
ABS d, s Word Double word
Application instructions-18
Binary → BCD conversion
Before conversion
BIN
Application instructions-19
BCD → Binary conversion
After conversion BIN Before conversion
BCD
Application instructions-20
Decode
Average
105 115 195 317 481 829 1586
Application instructions-21
Encode
128 187 126
Application instructions-22
Bit count
Number of bits set to That counts the bits Set to
Application instructions-23
Swap
Swap d
Swaps the upper 8 bits and lower 8 bits contained in d
When n=0, it is not executed When n5, it is not executed
Application instructions-24
Unit
Unity result write Destination I/O
Input Point type Output
When n=0, it is not executed
Application instructions-25
Distribute
X01001 DIF0 Dist WR0000, WX0000 LD X00001 and DIF0
Control instructions-1
Normal scan end
714
Instruction for use
101
Special internal output Error code Error description
102
Control instructions-4
Conditional jump
CU, CT
Code number To 255 Decimal Jump condition
Syntax of JMP, Cjmp
Nesting of JMP instructions is allowed
104
Control instructions-5
Label
LBL n
WRF001 H0001 Duplicate definition of LBL
Control instructions-6
Code number To 49 Decimal
For the instruction instruction, see Next n
106
Control instructions-7
Next
107
Syntax of for to Next
108
109
Control instructions-9
Start subroutine program
SB n
WRF001 H0004 Duplicate definition of SB H0013 SB undefined
RTS DER ERR
RTS
111
Control instructions-11
Start interrupt scan program Interrupt
To 2 , 16 to 19
To 27 Decimal
Control instructions-12
End interrupt scan program Return Interrupt
113
Syntax of SB n, RTS, INT n and RTI
Nesting of subroutines is allowed up to 5 levels
114
Usable I/O Others
Baud rate Value
+A Data length Byte +B H80 †† ††=Start code
+C H0000
118
Sample program
R7E3
WR0
DIF0
TRNS/RECV command return code table
Name Description Countermeasure
Transfer command-2
Recv 0 d, s, t
064
122
123
General purpose port switching
FUN instructions-1
Argument
124
FUN instructions-2
Refresh All points
432
Argument dummy
FUN instructions-3
Refresh Input/output
244
Input type
127
128
FUN instructions-5
High-speed Counter Operation Control
147
Argument Counter Number, operation Control value
FUN instructions-6
High-speed Counter Coincidence Output Control
138
Argument Counter Number, output Instruction
131
High-speed Counter Current Value Replacement
Argument counter Number Replacement value Storage area
FUN instructions-8
Rewrite the count value of the counter No to
FUN instructions-9
High-speed counter current value reading
132
Argument counter Number Current value storage Area
134
High-speed counter preset
FUN instructions-11
162
135
136
137
FUN instructions-13
173
138
139
FUN instructions-14
Pulse output control
149
Argument Pulse output Number
Pulse frequency output setting changes
FUN instructions-15
217
141
142
FUN instructions-16
Pulse output with acceleration/deceleration
919
143
144
145
146
Usable I/O classifications and point types
I/O Assignment
Type Assignment Point
Shows a diagram outlining this series of operations
External I/O Numbers
List of external I/O classification and data type
Classification Data type Remarks
List of I/O number conventions for external I/O
Data type Numbering convention Example
Internal Output Numbers
WR0
DR0
WM0
Lists the programming specifications for the MICRO-EH
Memory Size and Memory Assignment
Sram
Flash
Programming Devices
Following methods are used to create the user programs
System configuration using a personal computer
Programming Methods
Ladder Editor
WVCB02H WPCB02H
Out-line of opera-ting procedure Situation Point
List of procedures for creating a program
Modify Test operation, adjustment
On-line On-direct
Size of one circuit
Example when using loop symbols
Example when using a processing box
Program Transfer
WRF01A
WRF03C
WRF03D
WRF06B
Initial Setting for Special Input/Output Function
Change individual setting Store the settings in the memory
Input/Output Function
Operation Mode
Operation mode list
Input/Output Setting
Special internal output for setting detailed function
Y100 Group „ Mode setting Y101 Y102 Group 2 Group
„ In/output setting
„ Outline
„ Example
Pulse / PWM Output adjustment
Special Output Operation in CPU Stop Status
R7FC toR7FF
Counter output
High-Speed Counter Single-Phase
Operation of Single-Phase Counter
Basic operation
Preload input operation
Current value clear instruction operation
Setting of Single-Phase Counter
At abnormal setting
Individual counter setting
WRF058 Counter
WRF059 Counter
High-Speed Counter Two-Phase Counter
Operation of Two-Phase Counters
Phase counting mode
High ↓ Falling edge
↓ Falling edge Low ↑ Rising edge High
↓ Falling edge High
↑ Rising edge Low
High ↓ Falling edge Low
↑ Rising edge High
Setting of Two-Phase Counter
Diagnostic error
WRF072
WRF076
WRF058 Two-phase counter
Bit Description
PWM Output
Operation of PWM Output
Setting the PWM Output
Setting the PWM output frequency
Setting the PWM output on-duty value
Setting abnormality
Individual PWM output setting
WRF058 PWM output
WRF059 PWM output WRF05A PWM output
Pulse Train Output
Operation of Pulse Output
Setting of Pulse Output
Setting the pulse output frequency
Setting the number of output pulses
Number of output pulses for pulse output
Individual setting of pulse outputs
WRF058 Pulse output
WRF059 Pulse output
Interrupt Input
Digital Filter
Interrupt input correspondence table Terminal INT No
Input sampling number
Potentiometers
Analogue Input
Analogue Output
Sw6 Conversion mode Remarks
Analogue Expansion unit
Sw1 Sw2 Range Remarks
Sw3 Sw4 Range Remarks
Switch Stop or
Specification. a 10-point type CPU becomes
RUN mode when the RUN input is On
Input on
RUN Start
Program classification Description Expression
Normal Scan
Definition and operation
Causes of congestion errors at normal scan
Scan time Congestion check time
RTI RTI INT0INT0
10 Congestion error at periodical scan 10 ms
Periodical Scan
Continuation of operation after a congestion error
Interrupt Scan
Stop
Scan Program execution Interrupt contact on
Interrupt contact on Congestion check time
Relationship of Each Scan Type
INT16 INT17 INT18 INT27
List of interrupt label Interrupt label Cause of startup
Online Change in RUN
Conditions for performing program change while running
CPU Halt time
Instantaneous Power Failure
Powering on
Instantaneous power failure actions
RUN OFF
Function Description When to use the function
Operation Parameter
Forced Set/Reset
Test Operation
Forced Output
Installation
Installation location and environment
Installing the unit
Mounting to a DIN rail
10-2
Wiring
Separation of the power system
10-3
Wiring to the power module
Unit Screw Clamping
10-4
Wiring to the input terminals DC input AC input
10-5
Wiring to the output terminals Relay output
Transistor output
EH-*XXDT
Transistor output Source type
Life characteristics 125 V AC
10-7
Wiring to the unit terminals
10-8
Communication port specification
Port function
Port
Ascii
Off H8000 Transmission procedure 4800 bps
Remarks
11-2
Port 2 specifications
Setting port
Bit WRF03D Initial value
11-3
General purpose port Port 1,2
1n station communication on RS-485
Port 2 hardware
11-4
Configuration
AT Commands
Modem Control Function
List of commands extract
Command Function overview Example
Register Set value Function
Number format Word format
Sequence
11-7
Connecting to the Ports
Port
Case of RS-422
Connection for 1n station communication by RS-485 11-9
11-10
Error Codes
Error Error name Classifi
Code Detection timing Cation
R7CF
Failure detection
Syntax and Assembler Error Codes
LBL
For
INT
Operation Error Codes
CAL
JMP
Cjmp
Name Meaning Description Setting Resetting Condition
Bit Special Internal Output Area
R7CB
R7CE
12-6
12-7
List of special internal outputs that can be stored
Special internal output Function That can be stored
WRF07B
WRF07C WRF07D WRF07E
Setting Resetting Condition
12.5
Name Storage data
12-9
Name Storage data Description Setting
12-10
PI/O function Individual setting Request
Name Stored data Description
12-11
Name Stored data Description Setting Resetting
12-12
Error Display and Actions
13-1
Ladder Editor
13-2
Process flow when an error occurred is shown below
Error code Error name Corrective action
13-3
13-4
Checklist when Abnormality Occurred
13-5
Procedures to Solve Abnormality
CPU LED, I/O LED
13-6
Power supply check
13-7
13-8
13-9
13-10
Assignment error is generated, but data is read
Data cannot be entered
13-11
13-12
13-13
CPU operates, but output signals are not detected
Assignment error occurred, but output is normal
13-14
13-15
13-16
Operation verification procedures
Peripheral unit name Form
Detailed operation example
14-1
E P 1 Starting the Ladder Editor for Windows
14-2
Select H-302 for the CPU type setting
E P 2 Initialization
Menu bar
14-3
Assign in the Menu bar
14-4
Setting from the I/O Assign List
14-5
Setting from the Slot Setting Status
14-6
E P 3 Program Input
Click the OK button. The dialogue closes
14-7
Click the OK button in the Processing Box
14-8
Input I/O No., time base, and the first setting value
M, Y, TD, SS, WDT, MS, TMR, CU, RCU, CTU, CTD, CL
14-9
Input comparison expression and comment Click the OK button
Click the circuit write icon Tool bar
14-10
E P 4 Checking Program Errors
14-11
E P 5 Saving the Program
14-12
E P 6 Program Transfer to CPU
14-13
Click File → CPU write in the Menu bar
14-14
E P 7 Monitoring Verifying the Operation
I/O Monitor dialogue box is displayed
14-15
Click the icon in the Symbol bar
I/O monitor can be specified in the following two ways
Monitor and display 16 points from Y100
14-16
Normal status Main cause of error
Life of the power module
Daily inspection
Items for daily inspection
Life of the battery
How to replace the battery
15-2
LDI
ANI
ORI
Not
EH-150 200 250 252 2000 2002 4010 700 1002 300 702 302
Arithmetic instructions Instruction Instruction name
Application instructions 2/2 Instruction Instruction name
Free
FUN instructions 1/5 Instruction Instruction name
FUN instructions 2/5 Instruction Instruction name
FUN instructions 3/5 Instruction Instruction name
FUN instructions 4/5 Instruction Instruction name
FUN instructions 5/5 Instruction Instruction name
Appendix 2 Standards
Standards
