Delta Electronics RTU-EN01 User Manual

RTU-EN01

Modbus TCP Remote I/O Communication Module

Operation Manual

DVP-0213920-01

Modbus TCP Remote I/O Communication Module RTU-EN01

Introduction

3 This operation manual only provides introductory information on electrical specification, installation and wiring.

3 RTU-EN01 is an OPEN-TYPE device and therefore should be installed in an enclosure free of airborne dust, humidity,

electric shock and vibration. The enclosure should prevent non-maintenance staff from operating the device (e.g. key

or specific tools are required to open the enclosure) in case danger and damage on the device may occur. DO NOT

touch any terminal when the power is switched on.

3 Please read this manual carefully and follow the instructions to avoid damage on the product or harm on staff.



Table of Content

1 INTRODUCTION....................................................................................................................3

1.1 Features ......................................................................................................................................3

1.2 Specifications ..............................................................................................................................3

2 PRODUCT PROFILE & OUTLINE.........................................................................................4

2.1 Dimension ...................................................................................................................................4

2.2 Product Profile.............................................................................................................................5

2.3 LED Indicators.............................................................................................................................5

2.4 RUN/STOP Switch ......................................................................................................................6

2.5 RJ-45 PIN Definition....................................................................................................................6

2.6 RS-232 PIN Definition .................................................................................................................6

2.7 RS-485 PIN Definition .................................................................................................................6

3 INSTALLATION & WIRING....................................................................................................6

3.1 Connecting RTU-EN01 to DVP Slim Series Digital Input/Output Module....................................6

3.2 Installing RTU-EN01 and DVP Slim Series Digital Input/Output Module onto DIN Rail ..............7

3.3 How to Connect RTU-EN01 to Network ......................................................................................7

4 WORD DEVICES & BIT DEVICES IN RTU-EN01 .................................................................8

4.1 Basic Registers (BR)...................................................................................................................8

4.2 Explanations on BR.....................................................................................................................9

4.3 External Input Contacts (RX).....................................................................................................12

4.4 External Output Contacts (RY)..................................................................................................12

4.5 Control Register for Extension Modules (RCR).........................................................................12

4.6 Word Devices & Bit Devices for Timers (T) ...............................................................................13

4.7 Word Devices & Bit Devices for Counters (C)...........................................................................14

4.8 Bit Devices for Real-Time Clock (R)..........................................................................................14

5 MODBUS COMMUNICATION .............................................................................................15

5.1 Function Codes Supported .......................................................................................................15

5.2 Exception Codes Supported .....................................................................................................15

5.3 Device Type & Device Address .................................................................................................16

DVP-PLC Operation Manual

Modbus TCP Remote I/O Communication Module RTU-EN01

6 SETTING UP SOFTWARE................................................................................................... 16

6.1 Setting up Communications & Searching for Communication Modules in DCISoft .................. 16

6.2 Recording IP Address ............................................................................................................... 18

6.3 Basic Settings........................................................................................................................... 19

6.4 Network Settings ...................................................................................................................... 21

6.5 Setting up Time Server............................................................................................................. 22

6.6 IP Filter ..................................................................................................................................... 23

6.7 Smart PLC Setting: IF-THEN.................................................................................................... 24

6.8 Smart PLC Setting: Timer......................................................................................................... 25

6.9 Smart PLC Setting – Counter ................................................................................................... 25

6.10 Smart PLC Setting – RTC.........................................................................................................26

6.11 Analog Input/Output Modules ................................................................................................... 27

6.12 I/O Monitoring Table.................................................................................................................. 29

6.13 Setting up Gateway .................................................................................................................. 30

6.14 Virtual COM ............................................................................................................................. 33

6.15 Security Setting ........................................................................................................................ 35

6.16 Returning to Default Settings.................................................................................................... 36

6.17 Web Function............................................................................................................................ 36

7 APPLICATION EXAMPLES – DCISOFT............................................................................. 42

7.15 Smart PLC: IF-THEN................................................................................................................ 42

7.16 Smart PLC: Timer..................................................................................................................... 43

7.17 Smart PLC: Counter ................................................................................................................. 44

7.18 Smart PLC: RTC....................................................................................................................... 45

7.19 Virtual COM .............................................................................................................................. 46

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The companies and products mentioned in this operation manual can be the trade mark possesd by the

owner of that trade mark right.

DVP-PLC Operation Manual

Modbus TCP Remote I/O Communication Module RTU-EN01

1 Introduction

To ensure correct installation and operation of RTU-EN01, please read this manual carefully before using your

RTU-EN01. RTU-EN01is an Ethernet remote I/O module for remote setting through Delta’s DCISoft. RTU-EN01

supports maximum 256 digital input/output points. RTU-EN01 supports Modbus TCP protocol and can be used

for remote monitoring with graphic control software or human machine interface. RTU-EN01 can also be used as

a Modbus TCP gateway, supporting the conversion from Modbus TCP commands to Modbus ASCII/RTU. In

addition, in MDI/MDI-X auto-detect, jump wire is not needed when you choose the network cable.

1.1 Features

z Supporting smart PLC functions, counter, timer and real-time clock. Able to operate independently without

control of PLC main processing unit or programming.

z Able to auto-detect 10/100 Mbps transmission speed; MDI/MDI-X auto-detect.

z Supporting maximum 16 digital input/output modules (Max. 256 I/O points) and 8 analog input/output

modules.

z Supporting maximum 16 sets of Modbus TCP connections.

z Supporting Modbus TCP/Modbus gateway (supporting Master mode, connectable to maximum 32 devices).

z Parameters can be set up on webpage.

1.2 Specifications

 Ethernet interface

Interface RJ-45 with Auto MDI/MDIX

Transmission method 802.3, 802.3u

Transmission cable Category 5e, 100m (Max)

Transmission speed 10/100 Mbps Auto-Detection

Communication protocol ICMP, IP, TCP, UDP, DHCP, NTP, Modbus TCP, HTTP

 Serial communication interface (COM1)

Interface Mini Dim

Transmission method RS-232

Communication speed 19,200 bps

Communication format Stop bit: 1; Parity bit: None; Data bit: 8

Communication protocol Delta Configuration

Transmission cable DVPACAB215 / DVPACAB230 / DVPACAB2A30

 Serial communication interface (COM2)

Interface 3 PIN feed-through terminal

Transmission method RS-485

Transmission distance 1,200m

Communication speed

Communication format Stop bit: 1, 2; Parity bit: None, Odd, Even; Data bit: 7, 8

Communication protocol

110, 150, 300, 600, 1,200, 2,400, 4,800, 9,600, 19,200, 38,400, 57,600, 115,200 bps

Modbus ASCII、Modbus RTU

DVP-PLC Operation Manual

Modbus TCP Remote I/O Communication Module RTU-EN01

 Environment

ESD (IEC 61131-2, IEC 61000-4-2): 8KV Air Discharge EFT (IEC 61131-2, IEC 61000-4-4): Power Line:±2KV, Digital Input: ±2KV, Communication I/O: ±2KV RS (IEC 61131-2, IEC 61000-4-3): 80MHz ~ 100MHz, 10V/m. 1.4GHz ~ 2.0GHz,

Noise immunity

Operation 0ºC ~ 55ºC (temperature), 50 ~ 95% (humidity), pollution degree 2

Storage -25ºC ~ 70ºC (temperature), 5 ~ 95% (humidity)

Shock/vibration immunity

10V/m Conducted Susceptibility Test (EN61000-4-6, IEC61131-2 9.10): 150kHz ~ 80MHz,

3V/m Surge Test (Biwave IEC61132-2, IEC61000-4-5): Power line 0.5KV DM, Ethernet

0.5KV CM, RS-485 0.5KV CM

International standards: IEC61131-2, IEC 68-2-6 (TEST Fc)/IEC61131-2 & IEC 68-2-27 (TEST Ea)

Certificates

 Electrical specification

Power supply voltage 24VDC (-15% ~ 20%) (with DC input polarity reverse protection)

Power fuse capacity 1.85A/30VDC, Polyswitch

Power consumption 2W

Insulation voltage 500VDC

Weight 116g

2 Product Profile & Outline

2.1 Dimension

37.4

LAN

RUN

STOP

POWER

BAT.LOW

RUN

RTU-EN01

RS-485

RS-232

Unit: mm

DVP-PLC Operation Manual

2.2 Product Profile

1. POWER indicator 12. RS-485 communication port

2. RUN indicator 13. Extension module positioning hole

3. BAT.LOW indicator 14. Nameplate

4. RUN/STOP switch 15. Extension port

5. RS-232 indicator 16. DIN rail (35mm)

6. RS-485 indicator 17. Extension module fixing clip

7. LINK/ACK indicator 18. DIN rail clip

8. SPEED indicator 19. Power supply port

9. Digital display 20. 3P terminal block (standard accessory)

10. Ethernet communication port

11. RS-232 communication port

Modbus TCP Remote I/O Communication Module RTU-EN01

21. Power supply connection cable (standard accessory)

2.3 LED Indicators

LED Color Function

POWER Green Power supply indication

RUN Green RUN/STOP indication

BAT.LOW Red Battery in low power indication

RS-232 Yellow Displaying communication status of RS-232 port

RS-485 Yellow Displaying communication status of RS-485 port

LINK/ACT Green Displaying the status of network

SPEED Yellow Displaying the speed of network connection

DVP-PLC Operation Manual

Modbus TCP Remote I/O Communication Module RTU-EN01

2.4 RUN/STOP Switch

Status Explanation

1. RUN indicator on RTU-EN01 is ON.

RUN

STOP

RUN Æ STOP

STOP

RUN

2. Analog input/output module is in RUN status.

3. Smart PLC function is running.

1. Analog input/output module switches from RUN to STOP status.

2. Y points on digital input/output module are all OFF.

1. RUN indicator on RTU-EN01 is OFF.

2. Analog input/output module is in STOP status.

3. Smart PLC function stops.

STOP Æ RUN

1. RTU-EN01 re-detects the information on the right-side module.

2. Analog input/output module switches from STOP to RUN status.

2.5 RJ-45 PIN Definition

PIN Signal Definition PIN Signal Definition

1 Tx+

2 Tx-

3 Rx+

4 -- N/C 8 -- N/C

Positive pole for data

transmission

Negative pole for data

transmission

Positive pole for data

receiving

5 -- N/C

6 Rx-

7 -- N/C

Negative pole for data

2.6 RS-232 PIN Definition

PIN Signal Definition PIN Signal Definition

1 -- N/C 5 Tx Transmission data

2 -- N/C 6 -- N/C

3 -- N/C 7 -- N/C

4 Rx Reception data 8 GND Ground

receiving

2.7 RS-485 PIN Definition

PIN Signal Definition

1 SG Ground of data

2 D- Negative pole for data

3 D+ Positive pole for data

3 Installation & Wiring

In this section, we will introduce how to connect RTU-EN01 to other devices and the network.

3.1 Connecting RTU-EN01 to DVP Slim Series Digital Input/Output Module

z Open the fixing clips on the right top and bottom sides on RTU-EN01. Meet the extension port on RTU-EN01

and the digital input/output module.

z Press and fix the clips on the digital input/output module. Make sure the contact between the modules is fine.

DVP-PLC Operation Manual

Modbus TCP Remote I/O Communication Module RTU-EN01

LAN

RUN

STOP

POWER

RUN

BAT.LOW

1 0

N E

T R

S R

P S

S 6

6 1

P V

V D

A D

D 2

2 0

P V

V D

3.2 Installing RTU-EN01 and DVP Slim Series Digital Input/Output Module onto DIN Rail

z Use standard 35mm DIN rail.

z Open the DIN rail clips on RTU-EN01 and the digital input/output module and insert the modules onto the rail.

z Press the clips to fix the modules onto the rail.

35mm DIN rail

P S 6 1

P V D

A D

2 0

P V D

3.3 How to Connect RTU-EN01 to Network

Connect RTU-EN01 to the Ethernet hub by CAT-5e twisted pair. Since RTU-EN01 has Auto MDI/MDIX function,

CAT-5e twisted pair does not need to jump wire. See below for the connection between the PC and RTU-EN01

modules:

DVP-PLC Operation Manual

Modbus TCP Remote I/O Communication Module RTU-EN01

DVPEN01-SL

DVP28SV

RUN

STOP

Ethernet

RTU-EN01

4 Word Devices & Bit Devices in RTU-EN01

4.1 Basic Registers (BR)

COM2

T S 8 0

P V D

DI/D

C S 6 1

P V D

AI/A

BR# Attribute Content Explanation Default Latched

0 R Model name

1 R Firmware version

Set up by the system; read only. The model code of RTU-EN01= H’0600.

Displaying the current firmware verision in hex, e.g. V1.2 is indicated as high byte = 0x01 and low byte = 0x20.

H’0600 YES

YES

Displaying the data in decimal form. 10,000s digit and 1,000s digit are for “month”; 100s digit and 10s digit are for “day”. For

2 R

Release date of the version

1s digit: 0 = morning; 1 = afternoon.

YES

Example: 12191 indicates the version released in the afternoon of December 19.

3 R/W

Start/Stop PLC function

4 Reserved . NO

COM2

5 R/W

communication settings

RS-485 communication settings. Please refer to the table of baud rate setting and communication format setting.

H’0368 YES

6 R/W Address For setting up the station address K’1 YES

7 R Number of DI points Range: 0 ~ 256 NO

8 R Number of DO points Range: 0 ~ 256 NO

9 R Error code Displaying the errors. Please refer to the table of error codes. NO

10 Reserved NO

11 R /W

12 R/W

13 R/W

Communication time-out

Communication delay time

TCP connection idle time

For setting up the communication time-out (ms) in Modbus TCP mode.

For setting up the minimum interval time between every communication datum.

K’5000 YES

K’0 YES

For setting up idle time for TCP communication. Unit: second K’30 YES

14 ~ 22 Reserved NO

23 R

Number of analog I/O modules

Max. 8 NO

DVP-PLC Operation Manual

Modbus TCP Remote I/O Communication Module RTU-EN01

BR# Attribute Content Explanation Default Latched

24 R

25 R

26 R

27 R

28 R

29 R

30 R

31 R

32 ~ 49 Reserved NO

50 R/W RTC settings Settings of the real-time clock NO

51 R/W Year Range: 1970 ~ 2099 YES

52 R/W Week Range: 1 ~ 7 YES

53 R/W Month Range: 1 ~ 12 YES

54 R/W Day Range: 1 ~ 31 YES

55 R/W Hour Range: 0 ~ 23 YES

56 R/W Minute Range: 0 ~ 59 YES

57 R/W Second Range: 0 ~ 59 YES

58 ~ 59 Reserved NO

60 Reserved NO

61 ~ 63 Reserved 0 NO

Symbol “R” refers to ready only; “R/W” refers to read and write.

ID of the 1st analog I/O module

ID of the 2nd analog I/O module

ID of the 3rd analog I/O module

ID of the 4th analog I/O module

ID of the 5th analog I/O module

ID of the 6th analog I/O module

ID of the 7th analog I/O module

ID of the 8th analog I/O module

ID of the 1st analog I/O module NO

ID of the 2nd analog I/O module NO

ID of the 3rd analog I/O module NO

ID of the 4th analog I/O module NO

ID of the 5th analog I/O module NO

ID of the 6th analog I/O module NO

ID of the 7th analog I/O module NO

ID of the 8th analog I/O module NO

4.2 Explanations on BR

BR#0: Model Name

Explanations:

1. Model code of RTU-EN01 = H’0600.

2. You can read the model code in the program to see if the extension module exists.

BR#1: Firmware Version

Explanations:

The firmware version of RTU-EN01 is displayed in hex, e.g. H’0100 indicates version V1.00

BR#2: Release Date of the Version

Explanations:

Displaying the data in decimal form. 10,000s digit and 1,000s digit are for “month”; 100s digit and 10s digit are for

“day”. For 1s digit: 0 = morning; 1 = afternoon.

Example: 12191 indicates the version released in the afternoon of December 19.

DVP-PLC Operation Manual

Modbus TCP Remote I/O Communication Module RTU-EN01

BR#5: COM2 Communication Settings

Explanations:

b0 ~ b3

Interface Explanation

Content

b7 b6 ~ b5 b4

Explanation

Content

Content Explanation

0x02 Modbus RTU Master

0x03 Modbus ASCII Master

BR#6: Address

Baud rate

(bps)

Data

COM2

RS-485

Data

0x1 110 0x6 2,400 0xB 57,600

0x2 150 0x7 4,800 0xC 115,200

0x3 300 0x8 9,600

0x4 600 0x9 19,200

0x5 1,200 0xA 38,400

b4 ~ b7

Stop bit 0: 1 Stop bit 1: 2 Stop bits

Parity bit 00 : None parity bit 01 : Odd parity bit 11 : Even parity bit

0000 (0) 7-N-1 0011 (3) 8-O-1 1000 (8) 7-N-2 1011 (B) 8-O-2

0001 (1) 8-N-1 0110 (6) 7-E-1 1001 (9) 8-N-2 1110 (E) 7-E-2

0010 (2) 7-O-1 0111 (7) 8-E-1 1010 (A) 7-O-2 1111 (F) 8-E-2

b8 ~ b15

Baud rate

(bps)

Data bit 0 : 7 Data bits 1 : 8 Data bits

Data

Baud rate

(bps)

Explanations

For filling in or reading the Modbus address. The address will be displayed in the message display after being set

up. Range: 1 ~ 247.

BR#7: Number of DI Points

Explanations

Read the number of digital input points from BR#7. Range: 0 ~ 256. Max. I/O points: 256.

BR#8: Number of DO Points

Explanations

Read the number of digital output points from BR#8. Range: 0 ~ 256. Max. I/O points: 256.

BR#9: Error Code

Explanations:

Error code = 0 refers to no error occurring.

Code Indication How to correct

DVP-PLC Operation Manual

Modbus TCP Remote I/O Communication Module RTU-EN01

Code Indication How to correct

F0 Returning to default setting --

F1 RTU-EN01 being powered --

F2 Power supply in low voltage Check if the power supply of the module works normally.

1. Check if the settings of smart PLC are incorrect.

F3 Internal error. Manufacturing error.

F5 Network connection error Check if RTU-EN01 is connected normally to the network.

F6 Insufficient TCP connection Check if the number of connected modules exceeds the maximum.

F7 RS-485 setting error Check if the RS-485 communication format is correct.

F8 IP setting error

F9 Right-side module error

04 Slave error

0b No response from station

2. Re-power RTU-EN01. If the error still exists, try step 3.

3. Reset RTU-EN01. If the error still exists, send the module back to the manufacturer for repair.

1. DHCP request failure.

2. IP setting error.

3. MASK setting error.

4. Gateway does not exist in the same subnet.

5. Returning to default setting.

Check if the configuration of the right-side module has been modified. If the error still exists, check if the number of I/O points exceeds the maximum and whether the there are more than 8 analog I/O modules connected.

1. Check if RTU-EN01 and RS-485 is connected normally.

2. Check if the series transmission speed is consistent with that of other nodes on the network.

BR#11: Communication Time-out (ms)

Explanations:

For setting up the communication time-out. Default = 5,000ms. For example, if you wish to set up the

communication time-out to 7 seconds manually, write 7000 to BR#11. Range: 5 ~ 65,535.

BR#12: Communication Delay Time (ms)

Explanations:

For setting up the minimum interval time between every Modbus command. Default = 0ms. For example, if you

wish to set up the communication delay time to 100ms manually, write 100 into BR#12. Range: 0 ~ 65,535.

BR#13: TCP Connection Idle Time (s)

Explanations:

For setting up the TCP connection idle time. Default = 30 seconds. For example, if you wish to set up the idle time

to 7 seconds manually, write 7 into BR#13. Range: 5 ~ 65,535.

BR#23: Number of Analog I/O Modules

Explanations:

Read the number of right-side modules from BR#23. Max. 8.

BR#24 ~ #31: ID of the 1st ~ 8th Analog I/O Module

Explanations:

Read the ID of the 1

~ 8th analog I/O modules from BR#24 ~ BR#31.

DVP-PLC Operation Manual

Modbus TCP Remote I/O Communication Module RTU-EN01

BR#50 ~ BR#57: RTC Settings

Explanations:

For setting up the real-time clock (RTC). When BR#9 = 1, RTU-EN01 will stop to update the RTC values to

BR#10 ~ #16. Once the setup is completed, RTU-EN01 will set BR#9 to 0.

Allowed range for RTC: 1970/01/01 00:00:00 ~ 2037/12/31 23:59:59

BR#9

0 No action

1 RTC stops

2 RTC being set

4.3 External Input Contacts (RX)

RX# Attribute Content Explanation Default Latched

0 ~ 255 R/W External input contact Input points on analog I/O module OFF NO

Symbol “R” refers to ready only; “R/W” refers to read and write.

RX#0 ~ #255: External Input Contact

Explanations:

The right-side extension interface on RTU-EN01 is able to connect to DVP-Slim series digital I/O modules.

RTU-EN01 supports maximum 256 I/O points.

4.4 External Output Contacts (RY)

RY# Attribute Content Explanation Default Latched

0 ~ 255 R/W External output contact Output points on analog I/O module OFF NO

Symbol “R” refers to ready only; “R/W” refers to read and write.

RY#0 ~ #255: External Output Contact

Explanations:

The right-side extension interface on RTU-EN01 is able to connect to DVP-Slim series digital I/O modules.

RTU-EN01 supports maximum 256 I/O points.

4.5 Control Register for Extension Modules (RCR)

RCR# Attribute Content Explanation Default Latched

analog I/O

0 ~ 49 R/W

50 ~ 99 R/W

100 ~ 149 R/W

150 ~ 199 R/W

The 1 module

The 2 module

The 3 module

The 4 module

analog I/O

Control register for the 1st analog I/O module

Control register for the 2nd analog I/O module

Control register for the 3rd analog I/O module

Control register for the 4th analog I/O module

-- NO

DVP-PLC Operation Manual

Modbus TCP Remote I/O Communication Module RTU-EN01

RCR# Attribute Content Explanation Default Latched

analog I/O

200 ~ 249 R/W

250 ~ 299 R/W

300 ~ 349 R/W

350 ~ 399 R/W

Symbol “R” refers to ready only; “R/W” refers to read and write.

The 5 module

The 6 module

The 7 module

The 8 module

analog I/O

RCR#0 ~ #399: Control Register for Right-Side Analog I/O Modules

Explanations:

By reading/writing RCR in RTU-EN01, you are able to store or retrieve the data in the control register (CR) inside

the analog input/output module.

Example: RCR#0 corresponds to CR#0 in the 1

analog I/O module. Extension module closest to RTU-EN01 is regarded the 1

Control register for the 5th analog I/O module

Control register for the 6th analog I/O module

Control register for the 7th analog I/O module

Control register for the 8th analog I/O module

analog I/O module. RCR#260 corresponds to CR#10 in the 6th

module.

-- NO

4.6 Word Devices & Bit Devices for Timers (T)

T# Attribute Register/coil name Explanation Default Latched

0 R/W Timer 0 Timer 0/OFF NO

1 R/W Timer 1 Timer 0/OFF NO 2 R/W Timer 2 Timer 0/OFF NO 3 R/W Timer 3 Timer 0/OFF NO 4 R/W Timer 4 Timer 0/OFF NO 5 R/W Timer 5 Timer 0/OFF NO 6 R/W Timer 6 Timer 0/OFF NO 7 R/W Timer 7 Timer 0/OFF NO 8 R/W Timer 8 Timer 0/OFF NO

9 R/W Timer 9 Timer 0/OFF NO 10 R/W Timer 10 Timer 0/OFF NO 11 R/W Timer 11 Timer 0/OFF NO 12 R/W Timer 12 Timer 0/OFF NO 13 R/W Timer 13 Timer 0/OFF NO 14 R/W Timer 14 Timer 0/OFF NO 15 R/W Timer 15 Timer 0/OFF NO

Symbol “R” refers to ready only; “R/W” refers to read and write.

T#0: Timer 0

Explanations:

When the timer is enabled, it will start to time according to the settings. When the timing reaches the target, the

bit device T0 will be ON. When the bit device is reset, the word device will be reset to 0 as well.

DVP-PLC Operation Manual

Modbus TCP Remote I/O Communication Module RTU-EN01

T#1 ~ #15: Timer 1 ~ 15

Explanations:

Please refer to T#0.

4.7 Word Devices & Bit Devices for Counters (C)

C# Attribute Register/coil name Explanation Default Latched

0 R/W Counter 0 Counting up/down counter 0/OFF NO

1 R/W Counter 1 Counting up/down counter 0/OFF NO 2 R/W Counter 2 Counting up/down counter 0/OFF NO 3 R/W Counter 3 Counting up/down counter 0/OFF NO 4 R/W Counter 4 Counting up/down counter 0/OFF NO 5 R/W Counter 5 Counting up/down counter 0/OFF NO 6 R/W Counter 6 Counting up/down counter 0/OFF NO 7 R/W Counter 7 Counting up/down counter 0/OFF NO 8 R/W Counter 8 Counting up/down counter 0/OFF NO

9 R/W Counter 9 Counting up/down counter 0/OFF NO 10 R/W Counter 10 Counting up/down counter 0/OFF NO 11 R/W Counter 11 Counting up/down counter 0/OFF NO 12 R/W Counter 12 Counting up/down counter 0/OFF NO 13 R/W Counter 13 Counting up/down counter 0/OFF NO 14 R/W Counter 14 Counting up/down counter 0/OFF NO 15 R/W Counter 15 Counting up/down counter 0/OFF NO

Symbol “R” refers to ready only; “R/W” refers to read and write.

C#0: Counter 0

Explanations:

When the counter is enabled and RX turns from OFF to ON, counting up or counting down will be set

according to the settings. When the counting reaches the target, the counting will stop, and the bit device C0

will be set to ON. When the bit device is reset, the word device will be reset to 0 as well.

C#1 ~ #15: Counter 1 ~ 15

Explanations:

Please refer to C#0.

4.8 Bit Devices for Real-Time Clock (R)

R# Attribute Content Explanation Default Latched

0 R/W RTC 0 Real-time clock OFF NO 1 R/W RTC 1 Real-time clock OFF NO 2 R/W RTC 2 Real-time clock OFF NO 3 R/W RTC 3 Real-time clock OFF NO 4 R/W RTC 4 Real-time clock OFF NO 5 R/W RTC 5 Real-time clock OFF NO

DVP-PLC Operation Manual

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