Table of Contents
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Communication protocols:
•
Modbus RTU
•
Modbus TCP/IP
LED functions
Installation and connections
2
2
3
1
Network adapter with Access function
M-LINK is a media converter for converting Ouman's Modbus (RTU / TCP)
based devices, or those of other manufacturers, to the Ouman system. The
device can be linked to an existing internet connection, through which the
device creates a secure connection between M-LINK and the Ouman Ounet
online monitoring service. If an internet connection is not available, it is pos-
sible to use a 3G-MOD4 modem, for example, to establish a ready-to-use
connection to the subject. M-LINK can also be used in a local area network
without an internet connection.
•
An internal WEB user interface for device management: Connected
devices are deployed using the Ouflex BA Tool.
•
Ethernet connection (DHCP / Fixed IP) with Access function. Access is a
service offered by Ouman for creating a secure VPN connection between
the device and the Ounet online monitoring service. With the service, the
device can also be operated remotely through an internet browser. The
service is included in the price throughout the device's life cycle.
•
Modbus RTU connection using screw connectors: (Max 10 devices or
2,000 points, RTU + TCP)
•
Modbus TCP connection RJ45: (Max 10 devices or 2,000 points, RTU + TCP)
•
With a C connector (RJ45), it is also possible to connect (one) Ouman
controller (Ouflex M, Ouflex M BA, S203, C203, H23) + GSM Modem
when using S203 or C203.
•
Possible to make point transfers from one device to another (Modbus
RTU / Modbus TCP) (requires the Ouflex BA Tool)
LED indicator
Description of the function
light
INIT/ERR
•
A red indicator light indicates the status of the device.
•
A red indicator light flashes when the device starts up.
•
The indicator light goes off when the device has been initialized.
•
If the indicator light continues to flash, initializing of the M-Link was not suc-
cessful, or a no response alarm is received from a device in the RTU or C bus.
LINK
•
A green indicator light indicates the status of network connection.
•
When the signal light is off, there is no connection with the LAN.
•
When the signal light is off most of the time but blinks occasionally, the
LAN connection is operational.
•
When the signal light is on almost constantly but is turned off for brief
moments, the Internet connection is operational.
•
When the signal light is constantly on, the Access connection is operational.
C COM
•
When the signal light blinks, M-Link is receiving data from a device
connected in the C connector.
RS-485 COM
•
When the signal light blinks, M-Link is receiving data from the Modbus RTU bus.
Installation:
Fixed on a DIN rail.
Commissioning of M-Link' s connections:
1.
The network cable is connected in M-Link' s Ethernet connection.
2.
M-Link is connected to the connector of an M-Link-compatible device using a
direct RJ45 cable. M-Link' s power supply is available at this C connector. The
GSM modem of a C203 or S203 device (GSMMOD) is connected to the free C
connector. M-Link' s terminal strips:
External power supply for M-Link.
external power supply is used if no M-Link-
compatible device is connected to M-Link' s C
connector.
Connectors 7 and 8 are not used
An
Modbus RTU bus
1
M-LINK
~
1
2x0.8
2
3
4
2x(2+1)x0.24
B
5
A
6
7
RX
8
TX
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Table of Contents
Related Manuals for OUMAN M-LINK
Summary of Contents for OUMAN M-LINK
-
Page 1: Led Functions
If an internet connection is not available, it is pos- sible to use a 3G-MOD4 modem, for example, to establish a ready-to-use connection to the subject. M-LINK can also be used in a local area network without an internet connection. - Page 2 M-Link C connection These connections are only used with Ouman’ s own devices fitted with an RJ45 connector. The C connections are identical. You can connect M-Link-compatible Ouman device in one connector and a GSM modem (GSMMOD) in the other for text message communication (C203 and S203 only).
- Page 3 Establishing a browser connection to M-Link xxxxxxxxx If you have a QR reader, read the QR code in the label on the M-Link de- vice. Username = service The password is shown in the label at the end of the M-Link device.
- Page 4 Ounet connection of an Ouman unit controller When you want to read the information of one M-Link-compatible device in a browser, connect the device directly to M- Link’s C connector. This also allows you to perform a remote update on the device, if required.
- Page 5 C bus connector / connectors (RJ45) • You can only connect one Ouman device to one of the RJ45 connector (Ouflex M / Ouflex M BA, S203, C203 or H23). • M-LINK receives its operating voltage via the connected device. (An external operating voltage source is not requi- red.)
- Page 6 If you want to read the data of several devices using a browser, connect the devices to the RTU bus. You can bring bus devices up to Ounet using the M-Link. We recommend that you connect a maximum of 10 devices to the RTU bus.
- Page 7 Connecting a bus device to an M-Link device The M-Link device can read the device points of a device connected to its own Modbus/RTU bus. The device points may be physical measurement results, settings, controls etc. The read points can be brought up to Ounet or other SCADA systems or transferred as a point transfer to another device via the TCP/IP bus.
- Page 8 Point transfer from device to another If you want to do the point transfer between devices, connect devices to the bus of the M-Link. Add a device you want to write or read through the bus. Enter the IP address. You can read the device...
- Page 9 If you select “synchronize”, you can both read and alter the device point (you can alter the value of the point from either device). Create a template for the M-Link device and add the device to Ounet (see page 4).
- Page 10 DST= Daylight saving time. This selection activates the winter time / daylight saving time calendar. The Info view shows all information on M-Link and the Ouman controller connected to the M-Link via the C connector Setting Description M-Link Extension bus in use Information on the status of device connection of the M-Link-compatible device connected to Oulink’...
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Page 11: Alarm Routing
Settings Alarm routing: The SNMP function can be used for alarm transfers between Ouman devices and the control room. The SNMP func- tion can be used for sending information on the activation, elimination and resetting of alarms to the desired server using the SNMP protocol. -
Page 12: Modbus Tcp
Link is read/written via this port. C-Serial) Port 5 (Port for de- M-Link’ s own port to the RTU bus (strip terminals 5 (A) and 4 (B). If the port value is 0, port con- vices that has con- nection is not open. -
Page 13: Modbus Rtu
Modbus RTU M-LINK has a free TCP/RTU gateway. You can read the measurement point data of any RTU slave device via Ounet. You can also add bus devices to M-LINK. Factory Setting Description setting Modbus master settings These settings are in use when “Master” is selected as the function of the M-Link device... - Page 14 (Clear set values). You can also cancel the update (Cancel updat- ing). Change password You can change the password of the M-Link device. Username = service, and the password (pwd) is shown in the label at the end of the M-Link device Current password Enter the current password in the “Current password”...
- Page 15 Examples of use • Introduces Access connections to Ouman’ s and third parties’ devices, enables con- nection to Ounet • Third-party devices can be brought up to the Ounet • Allows connecting Modbus RTU devices over a Modbus TCP/IP network, and vice versa •...
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Page 16: Technical Information
M-LINK Technical information Casing PC/ABS Mounting DIN rail Dimensions 71 mm (4M) x 91 mm x 59 mm 59 mm Weight 100 g Operating temperature 0 ... +50 °C. Storage temperature -20 ... +70 °C. 91 mm Protection class IP 20...