Gude Expert Net Control 2312 User manual

© 2019 GUDE Systems GmbH
Manual Ver. 1.1.1
valid from Firmware Ver. 1.00
User Manual
Expert Net Control 2312

With the free Gude Control App you can retrieve all relevant information
from your GUDE products regardless of their current whereabouts.
Check with your smartphone the important operating figures of your
server and rack environment like sensor values (max/min), energy
consumption as well as state of inputs and outputs with watchdog
functions. In particular, connected consumers can be switched remotely
with Gude Control.
"Gude Control" is available for the Expert Net Control 2312 series and
can be free downloaded from the Google Play Store and iTunes Store.
Have your Gude devices always in view - and in control.

3
Expert Net Control 2312 Table of contents
Table of contents
Chapter 1 Device Description 5
5
1.1 Security Advice
5
1.2 Content of Delivery
5
1.3 Description
6
1.4 Installation
7
1.5 Stop Input
8
1.6 Block Diagram
9
1.7 Status LED
9
1.8 Bootloader Mode
10
1.9 Firmware-Update
11
1.10 Technical Specifications
11
1.11 Energy Measurement
12
1.12 Sensor
Chapter 2 Operating 13
13
2.1 Operating the device directly
13
2.2 Operating by Webinterface
14
2.3 Using the Serial Interface
Chapter 3 Configuration 15
15
3.1 Configuration by Software
17
3.2 Configuration via Webinterface
3.2.1 Configuration - Output Ports 17
3.2.2 Configuration - Watchdog 18
3.2.3 Configuration - IP Address 20
3.2.4 Configuration - IP ACL 21
3.2.5 Configuration - HTTP 22
3.2.6 Configuration - Sensors 23
3.2.7 Configuration - SNMP 24
3.2.8 Configuration - Syslog 25
3.2.9 Configuration - E-Mail 25
Chapter 4 Protocols 26
26
4.1 SNMP

4
Expert Net Control 2312 Table of contents
27
4.2 Syslog
27
4.3 Email
Chapter 5 Support 27
28
5.1 Contact
29
5.2 Declarations of conformity

5
Expert Net Control 2312 Device Description
Device Description
1
Security Advice
1.1
·The device must be installed only by qualified personnel according to the following installation and
operating instructions.
·The manufacturer does not accept responsibility in case of improper use of the device and particu-
larly any use of equipment that may cause personal injury or material damage.
·The device contains no user-maintenable parts. All maintenance has to be performed by factory
trained service personnel.
·The device may only be connected by a low voltage power supply (12V - 24V AC or DC) .
·The device is intended for indoor use only. Do NOT install them in an area where excessive moi-
sture or heat is present.
·Because of safety and approval issues it is not allowed to modify the device without our permission.
·Please note the safety advises and manuals of connected devices, too.
·The device is NOT a toy. It has to be used or stored out or range of children.
·Care about packaging material. Plastics has to be stored out of range of children. Please recycle
the packaging materials.
·In case of further questions, about installation, operation or usage of the device, which are not clear
after reading the manual, please do not hesitate to ask our support team.
Content of Delivery
1.2
The package includes:
·Expert Net Control 2312
·CD-ROM and manual
Description
1.3
The Expert Net Control 2312 is a multipurpose device that is suitable for switching and monitoring of
voltages. It has the following features:
·Suitable for top hat rail mounting
·2312: 3 switchable, potential-free relay outputs with 230V (AC 16A) switching voltage
·Measurement of current, voltage, phase angle, power factor, frequency, active power, apparent
power and reactive power per output
·Two energy counter for each output, one counter counts continuously, the other counter is resetta-
ble
·Easy to read LED display to show the total current, IP-address, sensor values and error messages
·All outputs can be switched individually on the device via HTTP, via command line tool or via serial
interface
·Switching state and delay (0 ... 9999 seconds) adjustable for each output after power failure
·Simultaneous switching of multiple outputs is prevented by automatic latency of 1 second
·1 or 3-channel watchdog to monitor the connected devices (ICMP/TCP)
·States of the relay outputs are displayed with bicolored LEDs on the front page
·Connection for an external sensor
·Programmable on / off sequence
·Possible firmware update in operation via Ethernet

6
Expert Net Control 2312 Device Description
·HTTP 1.1, E-Mail, DHCP, SNMPv1 (traps), SNMPv2c (traps), Syslog
·Access protection via IP-access control
·Access control with optional password
·Controllable via iOS and Android App
·Low own consumption
·Compatible to products of brand Solar-Log
·Developed and produced in Germany
Installation
1.4
1. Power supply (12V-24V AC oder DC)
2. Stop input for shutdown of all relays
3. ENC2312: 3 relay outputs
4. L1 - L3 indicator LED display
5. LED display for load or sensor display
6. 3 indicator LEDs for relay outputs
7. Status LED
8. Button for OK, Select or bootloader mode
9. Network connector RJ45
10. Connector for sensor
11. Neutral wire connection for measurement electronics
12. ENC2312: 3 relay inputs

7
Expert Net Control 2312 Device Description
Start-up the device
·Connect the device to an AC Adaptor (12V-24V AC or DC).
·Plug the network cable into the Ethernet socket (RJ45).
·Connect the neutral wire to the neutral wire connector (11).
·Connect the relay outputs to the loads that should be used.
·Connect the relay inputs with the corresponding phase
·Attach a switch (if any) to the stop input.
·Connect the sensor (if any) to the device.
Stop Input
1.5
Stop Input
If the Stop Input is set to LOW for a second, all relays are switched off immediately. If a shutdown
was initiated, and the Stop Input goes back to HIGH for a second, the relay will re-activate as if the
device is started again. See Initialization Initialization status and Initialization delay in the chapter
"Configuration - Output Ports".

8
Expert Net Control 2312 Device Description
Block Diagram
1.6
block diagram for Expert Net Control 2312

9
Expert Net Control 2312 Device Description
Status LED
1.7
The Status LED shows different states of the device:
·red: Device is not connected to the Ethernet
·orange: Device is connected to the Ethernet, TCP/IP settings are not allocated
·green: Device is connected to the Ethernet, TCP/IP settings allocated
·periodic blinking: Device is in Bootloader mode.
Bootloader Mode
1.8
Certain actions can, for safety reasons, only be carried out if the device is in bootloader mode. The
following operations are possible only in Bootloader Mode:
·Firmware Update
·Configuration with GBL_Conf.exe
·Factory Reset
Activation of the Bootloader Mode
via push button:
·Hold both buttons for 3 seconds (only if the device has 2 buttons)
or
·Remove the power supply
·Hold down the button (or the "Select" button for devices with 2 buttons). If the push button is reces-
sed, use a pin or paper clip
·Connect the operating voltage
by Software: (only if "Enable FW to BL" was previously activated in GBL_Conf.exe)
·Start GBL_Conf.exe
·Do a network search with the "Search" menu action
·Activate in menu "Program Device" the item "Enter Bootloader"
Whether the device is in bootloader mode, is indicated by the flashing of the status LED, or it is
shown in GBL_Conf.exe, after a renewed device search, with the appendix "BOOT-LDR" after the
device name. In bootloader mode the program GBL_Conf.exe can disable the password and the IP
ACL, perform a firmware update, and restore the factory settings.
Activation of the bootloader mode and an abandonment of the bootloader does not change
the state of the power or output ports as long as the supply voltage is maintained.
Abandonment of the Bootloader Mode
via push button:
·Hold both buttons for 3 seconds (only if the device has 2 buttons)

10
Expert Net Control 2312 Device Description
or
·Remove and connect the power supply without operating a button
by Software:
·Start GBL_Conf.exe
·Do a network search with the "Search" menu action
·In menu "Program Device" activate the item "Enter Firmware"
Factory Reset
If the device is in bootloader mode, it can always be put back to its factory default. All TCP / IP set-
tings are reset in this operation.
via push button:
·Activate the Bootloader Mode of the device
·Hold down the button (or the "Select" button for devices with 2 buttons) for 6 seconds. If the push
button is recessed, use a pin or paper clip
·The status LED will blink in a fast rhythm, please wait until the LED blinks slowly (about 5 seconds)
by Software:
·Activate the Bootloader Mode of the device
·Start GBL_Conf.exe
·In menu "Program Device" activate the item "Reset to Fab Settings"
·The status LED will blink in a fast rhythm, please wait until the LED blinks slowly (about 5 seconds)
Firmware-Update
1.9
To perform a firmware update, the program GBL_Conf.exe and the latest firmware is needed.
Enable the bootloader mode (see Chapter Bootloader Mode)
Start GBL_Conf.exe
Select the device for which a firmware update is to be performed
Click "Program Device" and then select there "Firmware Update"
Specify the firmware file that should be uploaded
Upon completion of the update process, please start the new firmware of the device. You can do this
by simply leaving the bootloader mode.
A firmware update, unlike other functions, is not sent as a network broadcast. Therefore, the device
must have a valid IP address and a valid netmask before the firmware update. If necessary, please
correct the entries in GBL_Conf.exe in bootloader mode and save them with "Save Config".
If after a firmware update, the web page is not displayed correctly anymore, this may be related to the
interaction of Javascript with an outdated browser cache. Not always helps a Ctrl-F5, it is recommen-
ded that you manually delete the cache in the browser options. Alternatively, you can test start the
browser in "private mode".

11
Expert Net Control 2312 Device Description
Technical Specifications
1.10
Interfaces
1 x Ethernet port (RJ45)
ENC 2312: 6 x screw terminal with 3 x relay make contacts (230V
AC 16A)
2 x screw terminal for power supply
2 x screw terminal with 1 x stop input
2 x screw terminal for neutral wire
1 x Mini-DIN socket for external sensor
Network connectivity
10/100 MBit/s 10baseT Ethernet
Protocols
TCP/IP, HTTP, DHCP, ICMP,
SNMP v1/v2c + traps, Syslog, SMTP
Power Supply
12V to 24V AC or DC, 0.3 A
Environment
·Operating temperature
·Storage temperature
·Humidity
0°C to 50°C
-15°C to 60°C
10% to 85%
Case
plastics black
Measurements
105mm x 70mm x 90mm (L x H x D)
Weight
approx. 280g
Energy Measurement
1.11
Electrical Measurement Specification
Category
Range
Unit
Resolution
Inaccuracy
(typical)
Voltage
110-265
V
0.01
< 1%
Current
0,1 - 16
A
0.001
< 1.5%
Frequency
45-65
Hz
0.01
< 0.03%
Phase
-180 - +180
°
0.1
< 1%
Active power
1 - 4000
W
1
< 1.5%
Reactive power
1 - 4000
Var
1
< 1.5%
Apparent power
1 - 4000
VA
1
< 1.5%
Powerfactor
0 - 1
-
0.01
< 3%
Energy Counter
Active Energy
(total)
9.999.999,999
kWh
0.001
< 1.5%
Active Energy
(temporary)
9.999.999,999
kWh
0.001
< 1.5%
Due to design, only alternating currents can be measured, no direct currents.

12
Expert Net Control 2312 Device Description
Sensor
1.12
An external sensor can be connected to the Expert Net Control 2312. The following sensors are
currently available:
Temperature-Sensor 7001
Cable length
Connector
Mini-DIN
Measurement range
-20°C to +80°C at ±2°C (maximum) and ±1°C (typical)
Humidity/Temperature-Sensor 7002
Cable length
Connector
Mini-DIN
Measurement range
Temp: -20 to +80°C, ±0,5°C (maximum) and ±0,3°C (typical)
Humidity: 0-100%, ±3% (maximum) and ±2% (typical)
The sensor is automatically detected after connect.

13
Expert Net Control 2312 Operating
Operating
2
Operating the device directly
2.1
The current status of the output is indicated by the color of the LED. Red indicates that the output is
off, green shows that the output is on. On the device are the buttons "select" and "ok". If you press
"select", the LED will blink for the first output, ie the output is selected. Press "select" again to select
the next output. Hold down the button "ok" for two seconds, then the status of the selected output is
toggled.
Operating by Webinterface
2.2
Access the web interface: http://"IP-address" and log-in.
The website offers an overview of the port status, measurements and sensors, if they are connected.
Furthermore, here are buttons to control the state of the ports. The ports can be switched manually
with the "On" and "Off" buttons. If the port is turned on, it can be turned off by pressing the "Reset"
button, until after a delay it turns itself on again. The delay time is determined by the parameter Reset
Duration, which is described in the chapter about configuration via web interface.
Batchmode
Each individual port can be set for a selectable period of time to the state "switch on" or "switch off".
After the selected time they are automatically switched to the second preselected state.

14
Expert Net Control 2312 Operating
Optionally the device can be switched via a Perl script or external tools like wget. More information is
available on our support wiki at www.gude.info/wiki.
Using the Serial Interface
2.3
There is a serial connection alternatively to the Ethernet port, where the power ports can be switched.
You will need a terminal program such as the free supplied Windows HyperTerminal.
Connect your PC to the device via the serial cable 7990.
Serial Cable 7990
Cable length
Device Connector
Mini-DIN
PC Connector
D-Sub 9-pin socket
Start your terminal program and select the COM port to which the RS232 cable is connected. Use
the following settings ??for the serial port:
Baudrate
115200
Databits
8
Parity
No
Stoppbits
1
Flow Control
No
If you do not use HyperTerminal, please make sure that your terminal application supports VT100
commands.
If the connection is successful the device reports as in the figure below. Press ENTER to login.
The power ports can be toggled by pressing numerical keys in the terminal program. The character
"Z" will show the network settings. To logout, press the Esc key.

15
Expert Net Control 2312 Operating
Configuration
3
TCP/IP configuration by DHCP
After switching on the device is scanning on the Ethernet for a DHCP server and requests an unused
IP address. Check the IP address that has been assigned and adjust if necessary, that the same IP
address is used at each restart. To turn off DHCP use the software GBL_Conf.exe or use the confi-
guration via the web interface.
To check the network settings with GBL_Conf.exe, start the program and choose "All Devices" in the
"Search" menu. From the list select the appropriate device. The lower part of the left half of the win-
dow now shows the current network settings of the device. If the IP address is displayed with the
default settings (192.168.0.2), either no DHCP server is present on the network, or there could be no
free IP address assigned to it.
Configuration by Software
3.1
To view and change the network settings, you can use the program GBL_Conf.exe. The program is
available for free on our website www.gude.info and is also available on the accompanying CD-ROM.
You can also use GBL_Conf.exe to install firmware updates and trigger a reset to factory defaults.

16
Expert Net Control 2312 Configuration
Interface GBL_Conf
To check the network settings with GBL_Conf.exe, start the program and choose "All Devices" in the
"Search" menu. From the list select the appropriate device. The lower part of the left half of the win-
dow now shows the current network settings of the device. If the IP address is displayed with the
default settings (192.168.0.2), either no DHCP server is present on the network, or there could be no
free IP address assigned to it.
·Activate the Bootloader Mode (see Chapter Bootloader Mode) and choose in menu "Search" the
item "Bootloader-Mode Devices only"
·Enter the desired settings in the edit window and save them with "Save Config".
·Deactivate the boot loader mode for the changes to take effect. Select again "All Devices" in the
"Search" menu of GBL_Conf.exe. The new network configuration is now displayed.

17
Expert Net Control 2312 Configuration
Configuration via Webinterface
3.2
Access the web interface: http://"IP-address" and log-in.
Use the "Configuration" Tab to enter the configuration menu.
Configuration - Output Ports
3.2.1

18
Expert Net Control 2312 Configuration
Choose Output Port to configure: This field is used to select the output ports to be configured.
Label: You can assign a name up to 15 characters for each of the output ports. Using the name, an
identification of the the device connected to the port can be facilitated. This name is also shown on
the status page.
Start-up Monitoring
It is important, that if necessary the condition of the output ports can be restored after a power failure.
Therefore each port can be configured with Initialization status to a specific start-up state. This start-
up sequence can be carried out delayed by the parameter Initialization Delay. There is in any case a
minimum one-second delay between switching of ports.
Initialization status: This is the port state (on, off, remember last state) the port should be set when
the device is turned on. The setting "remember last state" saves the last manually set state of the out-
put port in the EEPROM.
Initialization delay: Here can be configured how long the port should wait to switch to its defined state
after the device is turned on. The delay may last up to 8191 seconds. This corresponds to a period of
approx. two hours and 20 minutes. A value of zero means that the initialization is off.
Repower delay: When this feature is enabled (value greater than 0), the output port will switch itself
on again a specified time after it has been disabled. Unlike the "Reset" button this function applies to
all switch actions, including SNMP, or an optional serial interface.
Reset Duration: When the "Reset" button is triggered, the device turns the output port off, waits for
the time entered here (in seconds) and turns the output port on.
Configuration - Watchdog
3.2.2
The watchdog feature enables to monitor various remote devices. Therefore either ICMP pings or
TCP pings are sent to the device to be monitored. If these pings are not answered within a certain ti-
me (both the time and the number of attempts can be set), the port is reset. This allows e.g. to auto-
matically restart not responding server or NAS systems.
When a watchdog is activated it presents various information in the Control Panel. The information is
color-coded.
Green text: The watchdog is active and regularly receives ping replies.
Orange text: The watchdog is currently enabled, and waits for the first Ping response.
Red text: The watchdog is active and receives no ping replies anymore from the configured IP ad-
dress.
After the watchdog has been enabled, the display remains orange until the watchdog receives a ping
response for the first time. Only then the watchdog is activated. Even after triggering a watchdog and
a subsequent power port reset, the display will remain orange until the device is rebooted and re-
sponds again to ping requests. This will prevent a premature watchdog reset of the port, e.g. when a
server needs a long time for a file check.
You can monitor devices on your own network, as well as devices on an external network, e.g. the
operating status of a router.

19
Expert Net Control 2312 Configuration
Enable watchdog: Enables the watchdog function for this Power Port.
Watchdog action: When selecting reset, the Port will be turned off and switched on again after a Re-
set Duration. The setting off leaves the Port in the off state.
Watchdog type: Here you can choose between the monitoring by ICMP pings or TCP pings.
·ICMP Pings: The classic ping (ICMP echo request). It can be used to check the accessibility of net-
work devices (for example, a server).
·TCP Pings: With TCP pings, you can check if a TCP port on the target device would accept a TCP
connect. Therefore a non-blocked TCP port should be selected. A good choice would be port 80
for http or port 25 for SMTP.
Hostname: The name or IP address of the monitored network device.
TCP port: Enter the TCP port to be monitored. When using ICMP pings this is not needed.
Ping interval: Select the frequency (in seconds) at which the ping packet is sent to each network devi-
ce to check its operating status.
Ping retries: After this number of consecutive unanswered ping requests the device is considered in-
active.
retry BOOTING after RESET failure: !!! Be careful, only switch this setting to "yes", if the app-
liance to be monitored never requires a long boot time !!!
Normally (this option no selected) the watchdog monitors the connected device. When the watchdog
is activated, because the device is not answering, the pre-selected watchdog action is executed. Now

20
Expert Net Control 2312 Configuration
the watchdog waits until the monitored device is answering to pings again. After this the watchdog is
armed again. When you select the option retry BOOTING after RESET failure, the watchdog is armed
directly after the watchdog action is executed.
This option has the following pitfall: If at the Port to be monitored a server connected, that is in need
for a long boot process, because it is doing a file system check, the server would probably exceed the
tripping time of the watchdog. The server would be switched off and on again, and the file system
check is restarted. This would be repeated endlessly.
retry Boot after N ping timeouts: If retry BOOTING after RESET failure is enabled, the device waits N
Ping intervals until the connected device is switched off and on again.
Configuration - IP Address
3.2.3
Hostname: Here you can enter a name with up to 15 characters. This name will be used for registrati-
on on the DHCP server. Special characters and umlauts can cause problems in the network.
IP Address: The IP address of the device.
Netmask: The network mask used in the network.
Gateway address: The IP address of the gateway.