ISON IS-MS3180 Series User manual

IS-MS3180Series 
UserManual 
Tiny Modbus/TCP to RTU/ASCII Gateway

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TABLEOFCONTENTS
1. Introduction ......................................................................................................................... - 4 -
1.1 Features ........................................................................................................ - 6 -
1.2 Applications .................................................................................................. - 7 -
1.3 Ethernet Solutions ........................................................................................ - 7 -
1.4 Web Server Technology ................................................................................ - 8 -
2. Hardware Information......................................................................................................... - 9 -
2.1 Specifications ................................................................................................ - 9 -
2.2 Appearance ................................................................................................. - 10 -
PoE and Ethernet RJ-45 Jack ...................................................................................... - 10 -
+12 to +48 VDC Jack .................................................................................................. - 10 -
Operating Mode Switch.............................................................................................. - 11 -
LED Indicator ............................................................................................................. - 11 -
Serial COM Ports ........................................................................................................ - 12 -
DIN-Rail Mounting ..................................................................................................... - 12 -
2.3 Dimensions ................................................................................................. - 13 -
IS-MS3180 Series Module .......................................................................................... - 13 -
CA-002 Cable .............................................................................................................. - 14 -
2.4 Pin Assignments ......................................................................................... - 15 -
IS-MS3180 .................................................................................................................. - 15 -
2.5 Wiring Notes for RS-232/485/422 Interfaces ........................................... - 16 -
RS-232 Wiring ............................................................................................................ - 16 -
RS-422 Wiring ............................................................................................................ - 16 -
RS-485 Wiring ............................................................................................................ - 17 -
3. Getting Started ................................................................................................................... - 18 -
3.1 Connecting the Power and Host PC ............................................................ - 18 -
3.2 Configuring Network Settings .................................................................... - 19 -
3.3 Connecting the Modbus Devices ................................................................ - 21 -
3.4 Configuring the Serial Port ......................................................................... - 21 -
3.5 Self-Test ....................................................................................................... - 23 -
4. Web Configuration ............................................................................................................. - 24 -
4.1 Logging in to the IS-MS3180 Web Server .................................................. - 24 -
4.2 Home Page .................................................................................................. - 26 -
4.3 Network Page ............................................................................................. - 28 -
4.3.1 IP Address Selection ................................................................................... - 28 -
4.3.2 General Settings .......................................................................................... - 31 -

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4.3.3 Modbus Settings ......................................................................................... - 32 -
4.3.4 Restore Factory Defaults ............................................................................ - 34 -
4.4 Serial Port Page........................................................................................... - 36 -
4.4.1 Settings (Port1 Settings) ............................................................................ - 36 -
4.4.2 Settings (Pair-Connection Settings) ........................................................... - 39 -
4.5 Filter Page ................................................................................................... - 40 -
4.6 Monitor Page .............................................................................................. - 41 -
4.7 Password Page ............................................................................................ - 42 -
4.8 Logout Page ................................................................................................ - 43 -
5. Typical Applications .......................................................................................................... - 44 -
5.1 Modbus Gateway ........................................................................................ - 44 -
5.2 Modbus Net ID ............................................................................................ - 44 -
5.3 Pair-connection Applications ..................................................................... - 45 -
5.4 TCP Client Mode Applications .................................................................... - 49 -
6. Modbus Information .......................................................................................................... - 51 -
6.1 Modbus Message Structure ........................................................................ - 51 -
01(0x01) Read the Status of the Coils (Readback DOs) ..................................................... - 54 -
02(0x02) Read the Status of the Input (Read DIs) ............................................................ - 55 -
03(0x03) Read the Holding Registers (Readback AOs) ..................................................... - 56 -
04(0x04) Read the Input Registers (Read AIs) ................................................................. - 57 -
05(0x05) Force a Single Coil (Write DO) ......................................................................... - 58 -
06(0x06) Preset a Single Register (Write AO) .................................................................. - 59 -
15(0x0F) Force Multiple Coils (Write DOs) ..................................................................... - 60 -
16(0x10) Preset Multiple Registers (Write AOs) ...................................................... - 61 -
Appendix A: Troubleshooting ................................................................................................... - 62 -
A1. How do I restore the web password for the module to the factory default password? .. - 62 -
Appendix B: Actual Baud Rate Measurement ........................................................................... - 64 -
Appendix C: Exception Codes.................................................................................................... - 65 -

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1. Introduction
Modbus has become the standard protocol for industrial communication and is now the most
commonly available means of connecting industrial electronic devices. Modbus allows for
communication between many devices connected to the same RS-485 network, for example, a system
that measures temperature and humidity and communicates the results to a computer. Modbus is
often used to connect a supervisory computer with a remote terminal unit (RTU) in supervisory
control and data acquisition (SCADA) systems.
The IS-MS3180 module is a Modbus TCP/UDP to RTU/ASCII gateway that enables a Modbus/TCP host
to communicate with serial Modbus RTU/ASCII devices through an Ethernet network, and eliminates
the inherent cable length limitations of legacy serial communication devices. The module can be used
to create pair-connection applications (as well as serial-bridge or serial-tunnel applications) and can
then route data over a TCP/IP connection between two serial Modbus RTU/ASCII devices, which is
useful when connecting mainframe computers, servers or other serial devices that use Modbus
RTU/ASCII protocols and do not themselves have Ethernet capability.

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In harsh industrial environments, the IS-MS3180 series also adds 3000 VDC and +/- 4 kV ESD protection
component that diverts the potentially damaging charge away from sensitive circuit to protects the
module and equipment from the sudden and momentary electric current.
The IS-MS3180 module features a powerful 32-bit MCU that enables efficient handling of network
traffic, and also has a built-in web server that provides an intuitive web management interface that
allows users to modify the configuration of the module, including the DHCP/Static IP, the
gateway/mask settings and the serial port settings.
The IS-MS3180 module offers true IEEE 802.3af-compliant (classification, Class
1) Power over Ethernet (PoE) functionality using a standard Category 5 Ethernet
cable to receive power from a PoE switch. If there is no PoE switch on site, the
module will also accept power input from a DC adapter. The IS-MS3180 module
is designed for ultra-low power consumption, reducing the hidden costs
resulting from increasing fuel and electricity prices, especially when a large number of modules are
installed. Reducing the amount of electricity consumed by choosing energy-efficient equipment can
also have a positive impact on maintaining a green environment.
Comparison of Device Servers:
Series
Features
IS-DS5150 IS-MS3180
Virtual COM


Programmable
 
PoE
 
Modbus Gateway


Multi-client 1 Sockets/Port 10 Sockets/Port
Remarks Cost-effective, Entry-level Cost-effective, Entry-level

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1.1 Features
 Supports Modbus TCP/UDP master and slave
 Supports Modbus RTU/ASCII master and slave
 Max. connections (masters) per serial port: 32
 Read-cache ensures faster Modbus TCP/UDP response
 Supports UDP responder for device discovery (UDP Search)
 Static IP or DHCP network configuration
 Easy firmware update via the Ethernet (BOOTP, TFTP)
 Tiny Web server for configuration (HTTP)
 Contains a 32-bit MCU that efficiently handles network traffic
 10/100 Base-TX Ethernet, RJ-45 x1 (Auto-negotiating, auto MDI/MDIX, LED Indicators)
 Includes redundant power inputs: PoE (IEEE 802.3af, Class 1) and DC jack
 Allows automatic RS-485 direction control
 3000 VDC isolation and +/- 4 kV ESD protection for i versions
 Terminal block connector for easy wiring
 Tiny form-factor and low power consumption
 RoHS compliant with no Halogen
 Cost-effective Modbus Gateway

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1.2 Applications
 Factory Automation
 Building Automation
 Home Automation
 Remote Diagnosis and Management
1.3 EthernetSolutions
Nowadays, the Ethernet protocol has become the foremost standard for local area networks.
Connectivity via the Internet snow common in many of the latest applications from home appliances,
to vending machines, to testing equipment, to UPS, etc. An Ethernet network can link office
automation and industrial control networks, access remote systems and share data and information
between machines from multiple vendors, and also provides a cost-effective solution for industrial
control networks.

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1.4 WebServerTechnology
Web server technology enables the IS-MS3180 to be configured via a standard web browser interface,
e.g., Google Chrome, Internet Explorer, or Firefox, etc. This means that it is easy to check the
configuration of the IS-MS3180 via an Ethernet network without needing to install any other software
tools, thereby reducing the learning curve required for maintaining the device.

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2. HardwareInformation
This chapter provides a detailed description of the front panel, the hardware specifications, the pin
assignments, the wiring notes and the dimensions for the IS-MS3180 series modules.
2.1 Specifications
Model IS-MS3180
System
CPU
32
-
bit ARM
Communication Interface
Ethernet
10/100
Base
-
TX, 8
-
p
in RJ
-
45 x 1,
(Auto
-
negotiat
ing, Auto
-
MDI/MDIX, LED indicat
or)
PoE (IEEE 802.3af, Class 1)
COM1 3-wire RS-232, 2-wire RS-485, 4-wire RS-422
Self-Tuner
Yes,
automat
ic RS
-
485 direction control
RS-
485
Bias Resistor
Yes, 1 KΩ
Node
254 (max.)
UART
16c550 or compatible
Signal Isolation
3000 V
DC
ESD Protection
+/
-
4 kV
COM Port Format
Baud Rate
115200 bps Max.
Data Bit
5, 6, 7, 8
Parity
None, Odd, Even, Mark, Space
Stop Bit
1, 2
Power
Power Input PoE: IEEE 802.3af, Class 1, DC jack: +12 ~ 48 VDC
Power Consumption 0.07 A @ 24 VDC
Mechanism
Connector 10-Pin Terminal x1
Mounting
DIN
-
Rail
Flammability
Fire Retardant Materials (UL94
-
V0 Level)
Environment
Operating Temperature
-
25 ~ +75 °C
Storage Temperature
-
30 ~ +80 °C
Humidity
10 ~ 90% RH, non
-
condensing
Note
: COM1/COM2/COM3 = TCP Port 502/503/504

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2.2 Appearance
PoEandEthernetRJ-45Jack
The IS-MS3180 module is equipped with an RJ-45 jack that is used as the 10/100 Base-TX Ethernet
port and features networking capabilities. When an Ethernet link is detected, and an Ethernet
packet is received, the Link/Act LED (Orange) indicator will be illuminated. When power is supplied
via PoE (Power-over-Ethernet), the PoE LED (Green) indicator will be illuminated.
+12to+48VDCJack
The IS-MS3180 is equipped with a +12VDC to +48 VDC jack that can be used to connect a power
supply. If no PoE switch is available on site, a DC adapter can be used to power the IS-MS3180
module.
5. Serial COM Ports
4. LED indicator
3. Operating Mode
Switch
2. +12 to +48 VDC Jack
1. PoE and Ethernet
RJ-45 Jack
6. DIN-Rail Mounting

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OperatingModeSwitch
Run Mode: Firmware operation Init Mode: Configuration mode
For IS-MS3180 series modules, the operating mode switch is set to the Run position by default. In
order to update the firmware for the IS-MS3180 series module, the switch must be moved from the
Run position to the Init position. The switch must be returned to the Run position after the update
is complete.
LEDIndicator
Once power is supplied to the IS-MS3180 series module, the system LED (S1) indicator will
illuminate. An overview of the S1 LED functions is given below:
Function Color S1 LED Behavior
Running Firmware
Red
Steady ON
Network Ready Slow flashing – Once every 3 seconds
Serial Port Busy Rapid flashing – Once every 0.2 seconds

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SerialCOMPorts
The number of serial COM Ports available depends on the type of IS-MS3180 module. For more
detailed information regarding the pin assignments for the Serial COM ports, refer to Section 2.4 Pin
Assignments .
DIN-RailMounting
The IS-MS3180 series modules include simple rail clips on the bottom of the chassis that allow
them to be reliably mounted on a DIN-Rail or a wall. For more detailed information regarding DIN-
Rail Mounting, refer to the illustration in figure below.
Mounting step:
1. Hook the unit over the DIN rail.
2. Push the bottom of the unit towards the DIN Rail until it snaps into place.
Removal step:
A. Push the unit down to free the bottom of the DIN-Rail.
B. Rotate the bottom of the unit away from the DIN-Rail.
C. Unhook top of unit from DIN-Rail
2
1

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2.3 Dimensions
The following diagrams provide the dimensions of the IS-MS3180 series module and CA-002 cable
that can be used as a reference when defining the specifications and the DC power supply plug for
any custom enclosures. All dimensions are in millimeters.
IS-MS3180SeriesModule

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CA-002Cable
Note: Cable color: BLACK
NO DESCRIPTION QTY UNIT
1 UL2464 18AWG 2C(RED/BLACK)
0D5.0 COLOR BLACK
1 PCS
2 DC PLUG 5.5*2.1 1 PCS
3 PVC:45/P BLACK G
Pin Assignment
P1 P2
1 RED OPEN
2 BLACK OPEN

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2.4 PinAssignments
IS-MS3180
Terminal No. Pin Assignment
10 F.G.
09 N/A
RS-232
08 ISO.GND
07 RxD1
06 TxD1
RS-485/RS-422
05 ISO.GND
04 RxD1-
03 RxD1+
02 TxD1-/D1-
01 TxD1/D1+

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2.5 WiringNotesforRS-232/485/422Interfaces
RS-232Wiring
3-wire RS-232 Connection
RS-422Wiring

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RS-485Wiring
Notes:
1. Usually, you have to connect all signal grounds of RS-422/485 devices together to reduce common-mode
voltage between devices.
2. Twisted-pair cable must be used for the DATA+/- wires.
3. Both two ends of the cable may require a termination resistor connected across the two wires (DATA+ and
DATA-). Typically, 120 Ω resisters are used.
4. The Data+ and B pins are positive-voltage pins, and Data- and A pins are negative-voltage pins in the
above figure. The B/A pins may be defined in another way depending on devices, please check it first.

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3. GettingStarted
This chapter provides detailed information about the “Self-Test” process, which is used to confirm
that the IS-MS3180 series module is operating correctly. Before beginning the “Self-Test” process, the
wiring test, Ethernet configuration and search/Modbus utility driver installation procedures must first
be fully completed. Follow the procedure described below:
3.1 ConnectingthePowerandHostPC
1. Ensure that the network settings on your PC are configured correctly.
Ensure that the Windows firewall or any Anti-Virus firewall software is correctly configured or
temporarily disable these functions; otherwise the “Search Servers” function in the ISON
eSearch Utility may not work as required. You may need to contact your System Administrator
for more details of how to do this.
2. Check that the Init/Run switch
is in the “Run” position.
3. Connect both the IS-MS3180 and the Host computer to the same sub-network or the same
Ethernet Switch, and then supply power (PoE or +12 to +48 VDC) to the IS-MS3180.
4. Verify that the System (S1) LED indicator
is flashing.

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3.2 ConfiguringNetworkSettings
1. Install the ISON eSearch Utility according to the installation instructions.
The ISON eSearch Utility can be obtained from the companion CD-ROM
2. Double click the ISON eSearch Utility shortcut on the desktop.
3. Click the “Search Servers” button to search your IS-MS3180.
4. Once the search process is complete, double-click the name of the IS-MS3180 to open the
“Configure Server” dialog box.
Factory Default Settings of IS-MS3180 Series Module:
IP Address 192.168.0.1
Subnet Mask 255.255.0.0
Gateway 192.168.0.254




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5. Enter the network settings information, including the IP, Mask and Gateway addresses, and
then click “OK” button. The new settings for the IS-MS3180 will take effect within 2 seconds. If
you don’t know the correct network configuration information, contact your Network
Administrator to obtain the details.
6. Wait 2 seconds and click “Search Servers” button again to ensure the tGW-718-D is working well
with new configuration.

