ICP DAS USA MDC-714i User manual

SUPPORT
MDC-711
MDC-714/MDC-714i
MDC-741
MDC-771
Written by Liam Lin
Edited by Sunny Chiu
MDC-700 Series
User Manual
Aug. 2021, Version 1.0.4

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Warranty
All products manufactured by ICP DAS are warranted against defective materials for a period of one
year from the date of delivery to the original purchaser.
Warning
ICP DAS assumes no liability for damages consequent to the use of this product.
ICP DAS reserves the right to change this manual at any time without notice. The information
furnished by ICP DAS is believed to be accurate and reliable. However, no responsibility is assumed
by ICP DAS for its use, nor for any infringements of patents or other rights of third parties resulting
from its use.
Copyright
Copyright © 2014 by ICP DAS. All rights are reserved.
Contact Us
If you have any questions, please feel free to contact us via email at:
[email protected]

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Contents
1. Introduction........................................................................................................................................ 4
2. Hardware Information ........................................................................................................................ 7
2.1. Specifications........................................................................................................................... 7
2.2. Appearance.............................................................................................................................. 8
2.3. Pin Assignments..................................................................................................................... 11
2.4. Wiring Connections ............................................................................................................... 14
2.5. Dimensions ............................................................................................................................ 15
2.6. Mounting the Hardware ........................................................................................................ 16
3. Getting Started.................................................................................................................................. 18
4. Configuration .................................................................................................................................... 22
4.1. Exporting and importing config.csv file................................................................................. 23
4.2. Editing the config.csv file....................................................................................................... 25
5. MDC-700 Web Interface ................................................................................................................... 32
6. Troubleshooting................................................................................................................................ 45
7. FAQ.................................................................................................................................................... 47
Q1: What are the maximum numbers of polling definition and local register?........................... 47
Q2: What is the maximum number of registers can be accessed in one Modbus command?.... 47
Q3: How are the local registers mapped to the polled data in a MDC-700?................................ 48
Q4: How to write data to output channels on a Modbus RTU slave device?............................... 50
Q5: How to read the status of each connection?......................................................................... 51
Q6: How to update firmware?...................................................................................................... 52
Q7: Why does the page not display correctly in my browser?..................................................... 56
Appendix............................................................................................................................................... 57
The differences between Firmware V. 1.08 and V. 2.00 ............................................................... 57
The differences between Firmware V. 1.06 and V. 1.08 ............................................................... 57
Revision History .................................................................................................................................... 58

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1. Introduction
The MDC-700 series module is a Modbus Data Concentrator which can concentrate data from
several Modbus RTU slave devices with RS232/RS-485 interface and allows Modbus TCP masters to
read/write data via Ethernet/LAN. The Modbus master can use one Modbus command to get all data
on those Modbus RTU slave devices via the MDC-700 concentrator. In other words, through the help
of a MDC-700 module, the Modbus RTU slave devices can be accessed over Ethernet with better
read and write performance.
The MDC-700 series module has the ability to perform up to 250 Modbus RTU commands to
read/write data from/to Modbus RTU slave devices and allows up to 8 Modbus TCP masters to get
the polled data. The support for Modbus TCP protocol makes the MDC-700 well integrated into
PC-based applications such as SCADA (Supervisor Control and Data Acquisition) and HMI (Human
Machine Interface) programs.

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Features
HTML5 Web-based User Interface
HTML5 is the latest version of the HTML markup language. It is supported by most current
browsers including Mozilla Firefox, Apple Safari, Google Chrome and so on.
For the reason, the Web-based user interface of the MDC-700 is accessible from a wide variety of
devices anywhere. Users can configure the module and monitor connection status of each polling
definition through their smart phones, tablets or desktops without a line of code.
Great Capability of Shared Memory
The MDC-700 series module can perform up to 250 polling definitions. And the internal shared
memory has four tables to store the polled AI, AO, DI and DO data. Each table can store up to
9600 registers.

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Config.csv to Ease Hard Work of Editing a Lot of Definition
Built-in Definition Validation
Support for Modbus TCP Master and Modus RTU Master
Editing and checking a lot of polling definitions is a hard work and it may make mistakes. Users
can easy to manage so many definitions in a CSV format file with Excel and import or export
the config.csv via a simple mouse-click action.
The MDC-700 can be accessed by Modbus TCP Master and Modus RTU Master. Changing the
mode for a COM port from Master to Slave allows a connected Modus RTU Master to
read/write data from/to the Modbus RTU slave devices on the other COM ports.
One of the polling definitions may not be executed due to invalid parameters is given in the
imported config.csv file. MDC-700 provides the function of validating and displaying invalid
parameters with line information in config.csv file on its web interface.
Invalid parameters

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2. Hardware Information
2.1. Specifications
MDC-711
MDC-714
MDC-714 i
MDC-741
MDC-771
Ethernet
Port
x 1, 10/100 Base-TX
Protocol
Modbus/TCP Slave
Max. Connection
8
COM Port
RS-232
x 1 (5-wire)
x 1 (5-wire)
x 1 (5-wire)
x 4 (5-wire)
x 1 (5-wire) +
x 6 (3-wire)
RS-485
x 1 (2-wire)
x 4 (2-wire)
x 4 (2-wire)
(3 isolated ports)
x 1 (2-wire)
x 1 (2-wire)
Baud Rate
1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 (bps)
Data Format
N81, E81, O81, N82, E82, O82
Protocol
Modbus RTU Master/Slave
Max. Node
32 nodes for each RS-485 port
Polling Definition
250 definitions for all RS-232/485 ports
Shared Memory
9600 registers for each of AI, AO, DI and DO Data
System
5-Digit 7 Segment
LED Display
Yes, to display IP address
System LED Indicator
Yes, to display heartbeat
Mechanical
Casing
Metal
Dimension
102 mm x 125 mm x 28 mm (W x H x D)
Installation
Wall Mount
Power
Input Range
+10 VDC ~ +30 VDC (non-regulated)
Consumption
2.5 W
Environmental
Operating
Temperature
-25°C ~ +75°C
Storage
Temperature
-30°C ~ +80°C
Humidity
10 ~ 90% RH, non-condensing

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2.2. Appearance
LED Indicator
The LED is used as a heartbeat indicator and slows to approximately one flash per second.
Ethernet Port
The MDC-700 is equipped with a RJ45 port for Ethernet LAN
connection. When 100BASE-TX is operating, the 10/100M LED
is lit orange. When 10BASE-T is operating or the machine is
not connected to the network, it is turned off. When an
Ethernet link is detected and an Ethernet packet is received,
the Link/Act LED is lit green.
LED Indicator
Configuration Display
組態設定顯示器
Connectors:
Power
COM2
Reset
COM1
Connectors: COM3 ~ COM8
Ethernet Port

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Power Connector
Configuration Display
MDC-700 includes a 5-digit 7-Segment LED display to indicate configuration in a module as below:
11111.
1. 192
2. 168
3. 255
4. 1
22222.
502
001
33333.
1.1152
2.1152
44444.
1. 801
2. 801
55555.
00
The IP address for the MDC-700
(192.168.255.1)
Modbus TCP communication settings
Port: 502
Net ID: 1
Baud rate setting for each COM port
COM1: 115200 bps
COM2: 115200 bps
Data format setting for each COM port
COM1: 8N1
COM2: 8N1
The count of TCP/IP connection
0: No TCP/IP connection

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Reset
Shorting the RESET pin to GND pin over 3 seconds can reset the IP/Subnet Mask/Gateway
addresses to the factory default settings.
Over 3seconds to restore factory default settings

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2.3. Pin Assignments
MDC-711
Terminal
No.
Pin
Assignment
E1
COM1
01
CTS1
02
RTS1
03
RxD1
04
TxD1
05
RESET
COM2
06
D2+
07
D2-
08
(R)+Vs
09
(B)GND
10
23
09
01
E1

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MDC-714/MDC-714i
COM3, COM4 and COM5 of MDC-714i are provided with 2500 VDC high voltage isolation protection.
MDC-741
Terminal
No.
Pin
Assignment
E1
COM1
01
CTS1
02
RTS1
03
RxD1
04
TxD1
05
RESET
COM2
06
D2+
07
D2-
08
(R)+Vs
09
(B)GND
Terminal
No.
Pin
Assignment
COM5
23
DATA+
22
DATA-
21
20
19
18
COM4
17
DATA+
16
DATA-
15
14
13
12
COM3
11
DATA+
10
DATA-
Terminal
No.
Pin
Assignment
E1
COM1
01
CTS1
02
RTS1
03
RxD1
04
TxD1
05
RESET
COM2
06
D2+
07
D2-
08
(R)+Vs
09
(B)GND
Terminal
No.
Pin
Assignment
COM5
23
RxD
22
TxD
21
RTS
20
CTS
19
GND
COM4
18
RxD
17
TxD
16
RTS
15
CTS
14
GND
COM3
13
RxD
12
TxD
11
RTS
10
CTS
10
23
09
01
E1
10
23
09
01
E1

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MDC-771
Terminal
No.
Pin
Assignment
E1
COM1
01
CTS1
02
RTS1
03
RxD1
04
TxD1
05
RESET
COM2
06
D2+
07
D2-
08
(R)+Vs
09
(B)GND
Terminal
No.
Pin
Assignment
COM8
23
TxD
22
RxD
COM7
21
TxD
20
RxD
19
GND
COM6
18
TxD
17
RxD
COM5
16
TxD
15
RxD
14
GND
COM4
13
TxD
12
RxD
COM3
11
TxD
10
RxD
10
23
09
01
E1

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2.4. Wiring Connections
RS-232 Wiring
3-wire Connection Wiring
5-wire Connection Wiring
RS-485 Wiring

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2.5. Dimensions
Left Side View
Front View
Top View
Bottom View
Rear View
Unit: mm

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2.6. Mounting the Hardware
Wall/Panel mounting
Step 1: Install the four mounting screws into the 4 keyhole mounting holes.
Step 2: Fasten the screws securely.
DIN Rail mounting
Step 1: Align the screw holes of the DIN-rail clip with the holes on the back side of the module,
and then fasten the screws securely.
1

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Step 2: Hook upper tab over upper flange of DIN rail.
Step 3: Tilt the module toward DIN rail until it snaps securely to DIN rail
2
3

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3. Getting Started
A new MDC-700 comes with a default IP address of 192.168.255.1; therefore, a valid IP address
should be assigned for the module to join your network. Then you can configure the MDC module
from its web user interface.
The factory default settings
IP Address
Subnet Mask
Gateway
192.168.255.1
255.255.0.0
192.168.0.1
STEP 1: Connect the MDC module to the same network as your computer and power on all the
devices. You can also connect the module to PC directly with an Ethernet cable.

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STEP 2: Set the IP configuration on your computer.
If the MDC module is new with default IP address of 192.168.255.1, your pc should pick up an
IP address in the range of 192.168.255.2 to 192.168.255.253 that is not in use.
NOTE
Details on how to change the IP address on your computer depend upon the type
architecture and operating system you are using. Use the Help and Support functionality on
your computer and search for "IP Addressing".
STEP 3: Enter the IP address of the module into the web browser.
(For example, http://192.168.255.1)
STEP 4: Create your account (for the first time login)
Upon initial login through the web interface, you will be prompted to create your username
and password as an administrator. Both username and password must be at least four
characters; they can be composed only of alphanumeric (A-Z, a-z, 0-9, case-sensitive)
characters and dot (.), dash (-), underline (_) and at (@) symbols.
1. Enter your username (> 4 characters)
2. Enter your password
3. Enter your password again
4. Click CREATE ACCOUNT

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STEP 5: Enter your username and password to log in to the MDC module.
STEP 6: Choose a valid IP address of the network for your MDC-700 module
Scroll down to Ethernet Configuration section, input the IP/Subnet mask and Gateway
addresses, and then click “Apply”. Make sure that the IP address you pick is not currently in
use by another device on the network.
.
1. Enter your username
2. Enter your password
3. Click LOGIN