SIGNAL FIRE ENET-DIN Ethernet Interface Module Owner’s Manual

ENET-DIN Ethernet Interface Module
Owner’s Manual

The SignalFire Ethernet Gateway has the following features:

• Wide range DC power input. 6 to 36VDC
• Modbus TCP Connection (supports up to 16 connections)
• Remote access to the Gateway through the SignalFire Toolkit, including full remote configuration support
• DIN Rail mounted Ethernet module
• Status LEDs

Specifications

Network Interface| Ethernet 10/100 base TX with Auto Negation, and HP Auto MDIX. RJ45 Connector
---|---
Network Standards| TCP/IP, DHCP, Telnet, and HTTP
Supply| 6-36VDC (screw terminals) (80mA at 12VDC)
Serial Port| DB9 serial port provides direct communication to Gateway using the SignalFire Toolkit
Modbus TCP Server| The Modbus TCP server supports 16 simultaneous server connections

Connections and Components

The SignalFire Ethernet Interface module can be used with either a SignalFire GatewayStick or a SignalFire DIN mount Gateway.
Ethernet Gateway Connections
The Ethernet Interface module provides screw terminals for connection to a SignalFire Gateway Stick or DIN mount Gateway. Connect the 6 wires to the Gateway following the labeled colors.

Power must be provided by the Power Input screw terminals (6-36VDC).

RS-232
The Ethernet module has an RS-232 port, similar to the DIN Gateway. This RS-232 port is not used to configure the Ethernet module, but to configure the attached Gateway (stick or DIN) when the user is at the location. When the Ethernet module is connected to the Gateway through the screw terminals on top, the Gateway’s RS-232 port becomes disabled, and the Ethernet module RS-232 port should be used for configuration.

Ethernet Interface Module Status LEDs
The Ethernet Interface Module has 3 green LEDs available for field diagnostics.

Slow Flash (3-second pause)
Fast Flash (1-second pause)
Solid On| The system is running at least one remote node is connected
The system is running but no remote nodes have connected
No communication with the Gateway Stick
Ethernet Link| Description
Solid On
Off| Valid Ethernet Link detected
No Ethernet link detected
Ethernet ACT| Description
Blink On| Blinks on to indicate Ethernet traffic

Operation

The SignalFire Ethernet Interface Module provides a Modbus TCP server which allows all of the registered data contained in the Gateway to be accessed by any Modbus TCP client.
In addition, a TCP port is available to allow remote configuration/debugging of the Gateway using the SignalFire Toolkit. This provides the same functionality as being directly connected to the Gateway with a serial cable.

Configuration

The Ethernet Interface Module is simple to use out of the box with little if any configuration necessary.

Default settings:

ToolKit Configuration
The Ethernet Interface Module’s IP settings can be configured from the attached Gateway Stick or DIN-Gateway (the Gateway must have firmware version 8.23 or higher) through the ToolKit (must be version 2.2.21.00 or higher). Connect to the Gateway with the ToolKit while it’s powered up and connected to the Ethernet Interface Module.
Under the “Tools” drop-down menu at the top of the Modbus Gateway window, select “Configure IP Address Settings”. To read/recover the current IP address settings, click “GET” and follow the series of pop-ups exactly as prompted. The ToolKit will notify the user if the process was successful or not. Note that the process includes a manual power cycle of the system. “GET” will read the info from the Gateway if it can, otherwise it will prompt the user with instructions to get the information from the Ethernet module, while Force GET goes straight to the Ethernet module without checking the Gateway.

The IP address can be set directly from this menu as well. Change the “IP Address”, “Network Mask”, and “Default Gateway” fields as needed according to your network administrator and click “SET”. This will again bring up the same prompts, requiring a reboot of the system, and will set the mode to Static.

Web Page Configuration
The Ethernet Interface Module can also manually be configured through its web page. This option is useful when the module alone needs to be configured before being installed in the field.
First, connect the Ethernet Interface Module directly to your PC with a Cat5 cable. Set the PC to an IP address on the same subnet as the default Ethernet Interface Module IP address.

From a PC running on the same LAN, you can detect the IP address assigned to the Ethernet Gateway using the SignalFire Toolkit by opening the Gateway window and selecting Detect Ethernet Gateways from the Tools menu. Selecting a Gateway IP address and clicking Connect to Gateway will connect to the selected Gateway with the Toolkit. You can also launch the configuration webpage in your default browser from this screen.
To access the configuration webpage, enter the IP address of the Ethernet Interface Module (192.168.1.100 by default) in a web browser and log in with the Web Config username and password. (admin/signal fire by default)

Remote Toolkit Access
To access the gateway debug port remotely, open the SignalFire Toolkit and select the Gateway Stick from the main window. Check the TCP Connection box in the lower left, enter the IP address of the Ethernet Interface Module, and click Connect. After a connection is made to the IP address full access to the Gateway is available as if a direct serial connection was used. This includes full remote configuration capability.

Changing to a Static IP Address
To change the Ethernet Interface Module to use a different static IP address, click on the network button and then select the Configuration button. Enter your new static IP address, and click Submit. The Ethernet Interface Module must be rebooted for these changes to take effect.

Changing to a DHCP Address
To change the Ethernet Interface Module to use a DHCP IP address, simply turn on the DHCP Client on the screen above. Note that a DHCP server must be running on the network. The Ethernet interface module must be rebooted for these changes to take effect.

Changing the SignalFire Toolkit Port
To change the SignalFire Toolkit port, first, select the Tunnel tab. Click on Tunnel 2 then Accept Mode. Change the Local Port field and click Submit.

Do not change any of the other tunnel settings.

Changing the Website Password

CAUTION: If the default password is changed, be sure not to forget the password, and be careful to type the new password correctly. If a password is lost the device must be returned to SignalFire to be reset.

To change the website password, click on the HTTP tab and select authentication. Type “/” in the URL field. Select Digest, then enter admin for the username. Enter the new password and click Submit. You will be prompted to log back in with the new password.

Modbus Tab
This will show the Modbus TCP statistics. Selecting the Configuration option will allow an additional Modbus TCP server port to be defined. Note that Port 502 is always available for the Modbus TCP connection.

The default response timeout is 3000mS (3 seconds). This timeout is the time the Ethernet Interface The module allows for the Gateway to respond to any Modbus requests. 3 seconds is chosen to allow time for any transparent (over- the-air) Modbus requests to remote nodes.
It is also important to consider this timeout when setting up any Modbus-TCP clients. If the ModbusTCP clients are polling rapidly with a  short timeout it is possible for the Ethernet Interface Module to become backed up with  Modbus requests and become non-responsive. Additional care must be taken when multiple Modbus-TCP clients are connected to the Ethernet Interface at the same time to avoid this same issue.

XML Tab
This tab can be used to download/upload custom configurations. Contact SignalFire for more information.
System Tab
The Ethernet Gateway may be rebooted (after a settings change for example) from this tab.
CAUTION: Do not restore factory defaults! This will cause all default settings to be lost and a new XML configuration file must be loaded. Contact SignalFire with any questions.

IP Address Recovery
If the IP address is lost or forgotten, it can be recovered through the ToolKit.

1. Close the ToolKit, and unplug the serial cable from the RS-232 port
2. Power cycle the Ethernet module and Gateway and wait 10 seconds
3. Plug the serial cable back into the Ethernet module’s RS-232 port
4. Open the ToolKit, pick the correct COM port, and click Auto-Detect Device
5. Under the Tools menu, select “Show Ethernet Gateway IP Address”

Note that if the IP address settings are changed the system must be powered down for at least 15 seconds and then powered back up for the Gateway to read the new IP address settings.

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