GÜDE Expert Net Control 2304 User manual

Manual
Expert Net Control 2304
© 2022 GUDE Systems GmbH
Manual Ver. 1.0.1
from Firmware Ver. 1.0

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Expert Net Control 2304 © 2022 GUDE Systems GmbH

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Expert Net Control 2304 © 2022 GUDE Systems GmbH
Table of contents
1. Device Description 5
1.1 Security Advice .............................................................................................................. 6
1.2 Content of Delivery ........................................................................................................ 6
1.3 Description ..................................................................................................................... 6
1.4 Installation ...................................................................................................................... 7
1.4.1 Connection Example ................................................................................................. 8
1.5 Technical Specifications ................................................................................................ 9
1.6 Sensor ........................................................................................................................... 10
2. Operating 12
2.1 Operating the device directly ..................................................................................... 13
2.2 Control Panel ................................................................................................................ 13
2.3 Maintenance ................................................................................................................ 15
2.3.1 Maintenance Page ................................................................................................. 18
2.3.2 Configuration Management ................................................................................... 19
2.3.3 Bootloader Activation ............................................................................................. 20
3. Configuration 23
3.1 Output Ports ................................................................................................................ 24
3.1.1 Watchdog ............................................................................................................... 25
3.2 Input Ports .................................................................................................................... 27
3.3 Ethernet ........................................................................................................................ 28
3.3.1 IP Address ............................................................................................................... 28
3.3.2 IP ACL ..................................................................................................................... 29
3.3.3 HTTP ....................................................................................................................... 31
3.4 Protocols ....................................................................................................................... 32
3.4.1 Console ................................................................................................................... 32
3.4.2 Syslog ..................................................................................................................... 33
3.4.3 SNMP ...................................................................................................................... 33
3.4.4 Radius ..................................................................................................................... 35
3.4.5 Modbus TCP ........................................................................................................... 37
3.4.6 MQTT ...................................................................................................................... 38
3.5 Clock .............................................................................................................................. 39
3.5.1 NTP ......................................................................................................................... 39
3.5.2 Timer ...................................................................................................................... 40
3.5.3 Timer Configuration ............................................................................................... 40
3.6 Sensors .......................................................................................................................... 47
3.6.1 Port Switching ......................................................................................................... 48
3.7 E-Mail ............................................................................................................................ 49
3.8 Front Panel ................................................................................................................... 51

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Table of contents
4. Specifications 52
4.1 Automated Access ....................................................................................................... 53
4.2 Messages ....................................................................................................................... 53
4.3 IP ACL ............................................................................................................................ 55
4.4 IPv6 ................................................................................................................................ 56
4.5 Radius ............................................................................................................................ 56
4.6 SNMP ............................................................................................................................ 57
4.6.1 Device MIB 2304 .................................................................................................... 60
4.7 SSL ................................................................................................................................. 61
4.8 Console .......................................................................................................................... 63
4.8.1 SSH .......................................................................................................................... 67
4.8.2 Console Cmd 2304 ................................................................................................. 68
4.9 Modbus TCP .................................................................................................................. 77
4.9.1 Sensor Tables ......................................................................................................... 82
4.10 MQTT ............................................................................................................................. 83
4.10.1 Example HiveMQ .................................................................................................... 85
5. Support 87
5.1 Data Security ................................................................................................................ 88
5.2 Contact .......................................................................................................................... 88
5.3 Declaration of Conformity .......................................................................................... 89
5.4 FAQ ................................................................................................................................ 89
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Index

Device Description

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Expert Net Control 2304 © 2022 GUDE Systems GmbH
Device Description
1 Device Description
1.1 Security Advice
·The device may only be used for its intended purpose.
·The device must be mounted in a housing / control cabinet in the end application and
must not be accessible during operation.
·Never work when voltage is applied.
·The device may only be installed and used by qualified personnel. The manufacturer
accepts no liability for damage or injury caused by improper use of the device.
·It is not possible for the customer to repair the device. Repairs may only be carried out
by the manufacturer.
·Connect the device to the supply mains or to a suitable low-voltage source (see tech-
nical data for details).
·The device may only be operated on the supply mains on a circuit with a fuse protec-
tion of max. 16 A.
·The power cables and plugs used must be in perfect condition.
·The device is only intended for use in dry and clean environments.
·The thermal specifications must be observed.
·Please also observe the safety instructions and operating instructions of the other
devices that are connected to the device.
·The device is not a toy. It must not be stored or operated within the reach of children.
·Do not leave packaging material lying around carelessly. Plastic sheets/bags, Styro-
foam parts, etc. could become a dangerous toy for children. Please recycle the pack-
aging material.
·If you are not clear about the correct connection or if any questions arise that are not
clarified by the operating instructions, please contact our support.
1.2 Content of Delivery
The package includes:
·Expert Net Control 2304
·Quick Start Guide
1.3 Description
The Expert Net Control 2304 can switch 8 different relay outputs and monitor 8 passive
signal inputs. The device has the following features:
·8 switchable, potential-free relay outputs, switching voltage 230 V AC 16 A / 24 V DC,
10 A
·Relays dispose of high contact reliability also at very small loads
·8 passive inputs for monitoring NO and NC devices, e.g. door contacts, smoke detect-
ors etc.
·Operation with 230 V AC or 24 V DC voltage
·Optional sensor for environmental monitoring (temperature, humidity and air pressure)

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Device Description
·Console commands via SSH and Telnet
·SSH support with public key and passwords
·Individually parameterisable switch-on delay of all outputs
·Programmable timetables and turn-on/turn-off sequences
·Individually adjustable watchdog for each output, which switches depending on ac-
cessibility (network ping)
·Dual TCP/IP stack with IPv4 and IPv6 support (IPv6-ready)
·Control and monitoring of the device via Ethernet with an integrated web server with
SSL encryption (TLS 1.1, 1.2, 1.3)
·Control and configuration with CGI parameters and JSON messages via HTTP (REST
API)
·SNMP (v1, v2c and v3, traps)
·MQTT 3.1.1 Support
·Modbus TCP support
·Radius support
·Generation of messages (e-mail, syslog and SNMP traps) and switching of relays de-
pending on sensor measurement limits
·Firmware update during operation via Ethernet possible
·Encrypted e-mails (SSL, STARTTLS)
·Access protection through IP access control
·Low own consumption
·Developed and produced in Germany
1.4 Installation
1. Low voltage power supply
2. 8x passive inputs (each with GND)
3. Pushbuttons for Select and OK
4. 4x 7-segment display (partly with unit LEDs e.g. "°C" )
5. 8x plain text displays (on/off) for the status of inputs and outputs
6. Indicators ("Input" or "Output") for the 8 plain text displays (on/off)

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Device Description
7. Status LED
8. Ethernet port status and activity (green and orange)
9. external sensor ("Sen.") plugged in indicator
10. Network connection (RJ45)
11. sensor connection (RJ45)
12. AC mains power supply
13. 8x relay switching contacts (NO)
Commissioning
·Connect the device to the mains supply or to a suitable low voltage source (see tech-
nical data).
·Plug the network cable into the Ethernet socket (RJ45).
·Connect the relays to the loads that are to be operated.
·Establish contact between the lines to be monitored and the digital inputs.
·Connect a sensor (if available).
1.4.1 Connection Example
Here is an example with block diagram in which the device is supplied with 230V AC and
in which eight AC loads (L1 - L8) are connected. In addition, the inputs are assigned
eight switches (S1 - S8).
As an alternative to connecting "In 1-8" and "GND", voltages can also be fed in
between "In 1-8" and GND. The maximum input voltage is 24V, voltages below 3V are
detected as LOW state, and voltages above 8V are detected as HI.

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Device Description
1.5 Technical Specifications
Connections
1 x Ethernet connection RJ45
1 x RJ45 for external sensor
1 x AC mains connection, picoMAX 7.5
1 x low voltage, AK1350
8 x inputs In1 ... In8, AK1350
8 x relay switching contacts NO, picoMAX 5.0
Network connection
10baseT / 100baseTX Ethernet
Relay outputs
Out1 ... Out8
max. 240V AC 16A, 50/60Hz
24V DC 10A
Inputs
In1 ... In8
screw terminal, AK1350/..DS-3.5-GREY
digital input, internal pull-up
active: max. 24V, < 3V LOW, > 8V HI
passive: switching contact
Power supply
internal power supply:
100V to 240V AC -15% ...+10%, 50/60 Hz, max 0.3A.
Low voltage:
12V to 24V AC -10% ... +10%, 50/60Hz, max 0.8A
12V to 24V DC -5% ... +25%, max 0.8A
internal fuse protection: 1.75A Typical I2t (A2s) = 1.5
Protection class
Class II
Environment
·Ambient temperature
·Storage temperature
·Humidity
0°C to 50°C
-20°C - 70°C
0% - 95% (non-condensing)
Housing
White plastic
Dimensions
143mm x 65mm x 90mm (L x H x D)
Weight
approx. 400g
AK1350 /DS-3.5-GREY
Connection technology
Screw terminal
Solid conductor
0.08 ... 1.5 mm² solid conductor
Fine-stranded conductor (flexible)
0.08 ... 1.5 mm² fine-stranded conductor
Fine stranded conductor; wire end ferrule
0.14 ... 0.5 mm² fine-stranded conductor
Stripping length
5.0 mm
picoMAX® eCOM 5.0 and 7.5
Connection technology
Push-in CAGE CLAMP®
Actuation type
Push-button
Solid conductor
0.2 ... 2.5 mm² / 24 ... 12 AWG
Fine-stranded conductor
0.2 ... 2.5 mm² / 24 ... 12 AWG
Fine stranded conductor; with insulated
ferrule
0.25 ... 1.5 mm²
Stripping length
9.0 ... 10.0 mm

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Device Description
1.6 Sensor
One external sensor can be connected to the Expert Net Control 2304. The following
sensors are currently available
Product Name
7101
7104-1
7105-1
7106-1
Calibrated
Sensor
-
7104-2
7105-2
7106-2
Cable length
2m
2m
2m
2m
Connector
RJ45
RJ45
RJ45
RJ45
temperature range
-20°C to +80°C at
±2°C (maximum)
and ±1°C (typical)
-20°C to +80°C at
±2°C (maximum)
and ±1°C (typical)
-20°C to +80°C at
±2°C (maximum)
and ±1°C (typical)
-20°C to +80°C at
±2°C (maximum)
and ±1°C (typical)
air humidity range
(non-condensing)
-
-
0-100%, ±3%
(maximum) and
±2% (typical)
0-100%, ±3%
(maximum) and
±2% (typical)
air pressure range
(full)
-
-
-
± 1 hPa (typical)
at 300 ... 1100
hPa, 0 ... +40 °C
air pressure range
(ext)
-
-
-
± 1.7 hPa (typical)
at 300 ... 1100
hPa, -20 ... 0 °C
Protection
IP68
-
-
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Device Description
Product Name
7201
7202
Cable length
-
-
Connector
RJ45
RJ45
temperature range
-20°C to +80°C at ±2°C (max-
imum) and ±1°C (typical)
-20°C to +80°C at ±2°C (max-
imum) and ±1°C (typical)
air humidity range
(non-condensing)
-
0-100%, ±3% (maximum) and
±2% (typical)
The sensors are detected automatically after connection. The sensor values are dis-
played directly on the "Control Panel" website:
A click on the link in the "Name" column opens the display of the Min and Max values.
The values in a column can be reset using the "Reset" button. The "Reset" button in the
name column deletes all stored Min and Max values.

Operating

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Operating
2 Operating
2.1 Operating the device directly
Port Switching
The current switching state of the output is indicated by the corresponding plain text dis-
plays (port LEDs). If the green "on" LED is lit, the port is switched on, if the red "off" LED
is lit, the output port is switched off. The buttons "Select" and "Ok" are located on the
device. If you press "select", you can select the following modes one after the other (in
the front panel configuration you can deactivate the modes "All on" or "All off").
1. All on (PALL in the display): All LEDs flash green. If you press the "Ok" button for
2.5 seconds, all ports are switched on.
2. All off (PALL in the display): All LEDs flash red. If you hold the "Ok" button for 2.5
seconds, all ports are switched off.
3. If you press "Select" again, the LED for the first output starts flashing, i.e. the output
is selected. Press "Select" again to select the next output. Pressing and holding the
"Ok" button for one second will toggle the state of the selected output.
If the ports are already "All on" or "All off", the corresponding mode is skipped.
Status-LED
The Status LED shows the different states of the device:
·red: The device is not connected to the Ethernet.
·orange: The device is connected to the Ethernet and waits for data from the DHCP
server.
·green: The device is connected to the Ethernet and the TCP/IP settings are allocated.
·periodic blinking: The device is in Bootloader mode.
2.2 Control Panel
Access the web interface: http://"IP-address" and log-in.
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Operating
The web page provides an overview of the switching state, as well as the external
sensor, provided that it is connected. When a single port is clicked at the Expert Net
Control 2304, a panel with buttons to control a single port appear:
The Port icon is green when the relay is closed, or red in the open state. An additional
small clock icon indicates that a timer is active. Timer can be activated by delay, reset
or batch mode.

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Operating
An activated Watchdog is represented by an eye icon. An "X" means, that the address
that should be observed, could not be resolved. Two circular arrows show a booting
status.
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 de-
scribed in the chapter "Configuration - Output Ports ". The "Close" button dissolves
the panel again.
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.
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.
The website contains a status overview of all passive signal inputs, the time since the
last change, and a counter of switching changes. The name and text for a logical state
of each input can be configured in the chapter Configuration-Input Ports .
2.3 Maintenance
The actual device generation with IPv6 and SSL allows all maintenance functions in the
web interface to be carried out on the Maintenance Page .
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Operating
Maintenance in the web interface
The following functions are available from the maintenance web page:
·Firmware Update
·Change the SSL certificate
·Load and save the configuration
·Restart the device
·Factory Reset
·Jump into the Bootloader
·Delete the DNS cache
Upload Firmware, Certificate or Configuration
On the Maintenance Page , select the required file with "Browse .." in the sections
"Firmware Update", "SSL Certificate Upload" or "Config Import File Upload" and press
"Upload". The file is now transferred to the update area of the device and the contents
are checked. Only now, pressing the "Apply" button will permanently update the data, or
abort with "Cancel".
Only one upload function can be initiated with a reboot, eg. you cannot transmit firm-
ware and configuration at the same time.
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. If a Ctrl-F5
does not help, it is recommended that you manually delete the cache in the browser op-
tions. Alternatively, you can test start the browser in "private mode".
During a firmware update, old data formats are sometimes converted to new struc-
tures. If an older firmware is newly installed, the configuration data and the energy
meters may be lost! If the device then does not run correctly, please restore the factory
settings (e.g. from the Maintenance Page ).
Actions in Bootloader mode
If the web interface of the device is no longer accessible, the device can be put into
Bootloader mode (see chapter Bootloader activation ). The following functions can be
executed using the GBL_Conf.exe application:
·Set IPv4 address, net-mask and gateway
·Turn HTTP password on and off
·Turn IP-ACL on and off
·Factory Reset
·Allow jump from firmware to bootloader
·Restart the device
For devices with relays, entering or exiting the bootloader mode does not change
the state of the relays as long as the operating voltage is maintained.
The GBL_Conf.exe program is available free of charge on our website www.gude.info and
can also be found on the enclosed CD-ROM.
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Operating
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 window 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.
Changing the configuration with gbl_conf.exe is explicitly only allowed in bootloader
mode!
Factory Reset
The device can be reset to the factory default via the web interface from the Maintenance
Page or from the Bootloader mode (see chapter Bootloader activation ). All TCP/IP
settings are reset in this operation.
If a unit is set to factory defaults, an uploaded certificate or updated firmware will be
preserved.
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Operating
2.3.1 Maintenance Page
This section provides access to important functions such as Firmware Update or Restart
Device. It is advisable to set an HTTP password for this reason.
Firmware Update: Start a firmware update.
SSL Certificate Upload: Saves your own SSL certificate. See chapter "SSL " for the
generation of a certificate in the right format.
Config Import File Upload: Loads a new configuration from a text file. To apply the new
configuration, a "Restart Device" must be executed after the "Upload".
Config File Export: Saves the current configuration in a text file.
Saving the configuration should only be carried out in an SSL connection, since it
contains sensitive password information (even if it is encrypted or hashed).
Restart Device: Restarts the device without changing the status of the relays.
Some functions such as a firmware update or changing of the IP-address and HTTP
settings require a restart of the device. A jump to the boot loader or a restart of the
device lead by no means to a change of the relay states.
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Operating
Restore Fab Settings and Restart Device: Performs a restart and resets the device to
factory default .
Enter Bootloader Mode: Jumps into bootloader mode, where additional settings can be
made with GBL_Conf.exe.
Flush DNS Cache: All entries in the DNS cache are discarded and address resolutions
are requested again.
Config/Status View: status.html: Displays the status.html page with the JSON data.
Config/Status Download: export.json: Direct file download of JSON data from status.hml.
2.3.2 Configuration Management
The device configuration can be saved and restored in the maintenance area .
The "Config File Export" function can be used to save the current configuration as a text
file. The syntax used in the configuration file corresponds to the commands of the Telnet
console. If the configuration of a device is to be restored from a text file, load the file with
"Upload" and restart the device with "Restart Device".
Saving the configuration should only be carried out in an SSL connection, since it
contains sensitive password information (even if it is encrypted or hashed). For the same
reasons, it is advisable to carefully handle the generated configuration files when archiv-
ing.
Editing the configuration file
It is possible to customize a saved configuration file with a text editor for your own
needs. For example, one scenario would be to use a script language to automate the
creation of many customized versions of a configuration, then equip a large number of
devices with an individualized configuration. Also Upload and restart with CGI commands
can be done in scripting languages. With use of the comment sign "#" you can quickly
hide single commands or add personal notes.
If you modify a configuration file manually, it is not always clear which limits are allowed
for parameters. After uploading and restarting, commands with invalid parameters are ig-
nored. Therefore, the generated configuration includes comments describing the bound-
aries of the parameters. Where "range:" refers to a numeric value, and "len:" to a text
parameter. E.g:
email auth set 0 #range: 0..2
email user set "" #len: 0..100
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Operating
The command "system fabsettings" from the beginning of a generated configuration file
brings the device into the factory state, and then executes the individual commands that
modify the configuration state. It may be desirable to make the changes relative to the
current configuration, and not out of the factory state. Then the "system fabsettings"
should be removed.
No output of default values
The configuration file contains (with exceptions) only values which differ from the default.
The command "system fabsettings" (go to the factory state) from the beginning of a gen-
erated configuration file should not be removed, otherwise the device can get incom-
pletely configured.
Configuration via Telnet
The configuration files can in principle also be transferred in a Telnet session, but then
the settings are changed during operation, and not completely when restarting, as it
would have been the case with an upload. It can happen that events are triggered at the
same time as the device is configured. One should therefore:
a) disable the function
b) completely parametrize
c) reactivate the function
An example:
email enabled set 0
email sender set "" #len: 0..100
email recipient set "" #len: 0..100
email server set "" #len: 0..100
email port set 25
email security set 0 #range: 0..2
email auth set 0 #range: 0..2
email user set "" #len: 0..100
email passwd hash set "" #len: 0..100
email enabled set 1 #range: 0..1
2.3.3 Bootloader Activation
The configuration of the device from the application "GBL_Conf.exe" is only possible, if
the device is in Bootloader Mode.
Activation of the Bootloader Mode
1) via push button:
·Hold both buttons for 3 seconds
2) or
·Remove the power supply
·Hold down the "Select" button. If the push button is recessed, use a pin or paper clip