SIMATIC RTU3030C

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The RTU3030C is a compact telecontrol station (RTU: Remote Terminal Unit) for applications with their own power supply. It is particularly suited for the monitoring and control of remote stations that are not connected to an energy supply network; it can collect data of connected sensors with time stamp independently, preprocess the data, and transfer it to a control center by means of mobile radio. The RTU3030C is supplied with energy by a battery, an accumulator or solar panel or a 12 … 24 V DC power supply unit.

The RTU3030C is characterized by the following properties:

Global, wireless data exchange between a remote measuring point and a control center based on the mobile telecommunication standard UMTS (Universal Mobile Telecommunications System) with data transmission speeds of up to 42 Mbps in the downlink (HSDPA) and 5.76 Mbps in the uplink (HSUPA)
UMTS operation with fixed or dynamic IP addresses, depending mobile telecommunication contract
Communication with a telecontrol center with the help of the standard protocols DNP3 or IEC 60870-5-104
Connection to Telecontrol Server Basic as of V3.0+SP2
Acquisition of process signals, alarms, count pulses, measured values or output of switching commands by means of integrated inputs as well as digital inputs and outputs
Time synchronization
- on the basis of NTP (Network Time Protocol)
- by means of the partner in the control room
- by means of the mobile radio network
Automatic sending of alarm emails or alarm text messages
Wake-up station from sleep mode by means of text message or call
Use as data logger by saving the process values to SD card
Data buffering in the substations in the event of connection failures
LED signaling for fast diagnostics
Compact industrial enclosure in S7-1200 design for mounting on a standard mounting rail
Use in tough environment due to extended temperature range from -40 to +70 °C and IP68 protection due to external protective enclosure
Fast commissioning thanks to easy configuration using the integrated web server

In conjunction with the "TeleControl Server Basic" control room software, the RTU3030C forms a telecontrol system with additional properties:

Connection of up to 5000 telecontrol stations to the control center via OPC UA
Central status monitoring of the substations
No special provider services required for fixed IP addresses
Teleservice access to the substations via mobile radio
Wake-up of substations by calling or text message

Область применения

The RTU3030C can be used as substation (Remote Terminal Unit) in telecontrol applications. Typical applications include the acquisition of measured values in plants that are spread over large geographical areas (e.g. level monitoring of water tanks in the water/wastewater industry).

Data exchange and centralized data monitoring for automation systems spread over large geographical areas
Connection of difficult-to-access external stations without a network infrastructure
Connection of measuring points at locations without power supply infrastructure

These applications can be found in the most diverse sectors:

Water/wastewater treatment plants
- Detection of leaks or water loss
- Monitoring of pumping stations, water towers/reservoirs
- Acquisition and monitoring of level / pressure / flow / temperature
- Flood protection
Inventory management – Monitoring of levels in tanks and silos
Agriculture monitoring – Monitoring of irrigation systems or greenhouses
Wind power – Wind measurement for dimensioning of wind turbines

Дизайн

The SIMATIC RTU3030C is a compact module in SIMATIC S7-1200 design:

Rugged, compact plastic enclosure for the temperature range -40 °C to +70 °C
Easily accessible connection and diagnostics elements
Easy mounting on a standard DIN rail
Four plug-in screw terminal for eight digital inputs (pushbutton/switch/relay contacts) of which two can be configured as counter inputs
Four plug-in screw terminal for four analog inputs: Current / voltage (0/4…20 mA, 0…10 V, 0…5 V) or temperature measurement (Pt1000)
Two plug-in screw terminals for four digital outputs designed as relay contacts
The close-loop (12 V or 24 V can be selected) and switchable controller outputs X10/X11 can be used for the supply of sensors and actuators
5-pin, plug-in terminal strip for connection of an 12 ... 24 V DC external supply voltage; connection protected against polarity reversal
Connection socket for battery module (up to two battery modules can be connected)
SMA antenna connection for GSM/GPRS/UMTS antenna
RJ45 socket for connection to Industrial Ethernet at 10/100 Mbps (only local for commissioning)
Pushbutton for the functions wake-up, shutdown, warm restart or reset to factory settings
Slot for an SD card (Siemens SMC, SD or SDHC)
Slot for a SIM card
Installed temperature sensor for monitoring of temperature inside enclosure

The RTU3030C can be used as stand-alone device. The power supply can take place in independent operation by means of battery / accumulator /solar panel. The optional batteries (maximum of two modules) are connected directly on the left side of the device without additional wiring. The power can also be supplied by a 5-pin terminal strip on the bottom of the module, even in combination with battery modules. The antenna socket for the mobile radio antenna is located on the top, the SIM slot on the bottom and the SD slot on the front of the module. Removable screw-type terminals make for quick module replacement because the connected sensors must not be wired again.

Функции

The RTU3030C is a compact telecontrol station. The station enables wireless connection to and monitoring of remote measuring points in TeleControl Server Basic or any other control room. To ensure independent operation, it can also switch between four operating modes:

Sleep mode
All inputs and communication functions are turned off so that power consumption is minimal. Outputs can retain their last value.
Update mode
Used to query the inputs and outputs. The query cycle can be configured individually.
Communication mode
Wireless radio connection and communication to central office are active. UMTS enables fast data transmission.
Service mode
Maintenance work can take place without loss of data.

Connection of the SIMATIC RTU3030C to TeleControl Server Basic through mobile radio

Energy-independent mode

The RTU3030C can be operated in energy saving mode. Depending on the communication requirements and the connected type of power supply (e.g. battery, solar accumulator), independent operation can thus be guaranteed for many years to come.

Data backup

Data losses are prevented by the data buffering mechanisms integrated in the product. In the event of a connection failure, time-stamped frames are buffered in the device. When the connection returns, the buffered values are automatically transferred to the control center in the right order.

Data logging

The RTU3030C supports the backup of process data on SD card. The retentively saved data can be sent cyclically by email or, if necessary, downloaded directly using web-based management (WBM).

Data logging on SD card

Data point configuration

For data point configuration, the RTU supports a series of data point types: Digital input, digital output, analog input, counter input. Configuration of the data points can take place with little effort using the websites of the RTU3030C. The cyclic or event-controller transfer of measured values, setpoints or alarms can thus be implemented in only a few operations.

Data preprocessing

Ready-to-use program blocks (30 different types) enable data preprocessing directly in the RTU3030C. The process data can be linked by means of process blocks for basic control jobs. Use of analog and digital bit memories enables buffering of calculation results.

30 different types in the following groups are supported:

Blocks for logical functions (e.g. AND, OR)
Blocks for time functions (e.g. ON and OFF delay, astronomical clock)
Blocks for analog value functions (e.g. threshold value monitoring)
Counter blocks
Blocks for messages (text messages, email)
Relay blocks (latching relay, pulse relay)

Time synchronization

The RTU supports time synchronization and therefore ensures that historical data is given the correct time stamp. In addition to using the NTP protocol, you can synchronize the time via the telecontrol center or the wireless communication provider.

Alarms sent by email or text message

To make station conditions available to the service or maintenance personnel in a timely manner, alarm emails or alarm text messages can be configured. If previously defined events (such as threshold violation) were to occur, application-specific information is sent automatically by email or text message.

Telecontrol communication using standard protocols

For communication to the control room, the RTU3030C supports the standard protocols DNP3 or IEC 60870-5-104. The RTU functions as DNP3 station or as IEC slave. The RTU can also be connected to the TeleControl Server Basic (TCSB). TCSB enables a connection to any control room software, e.g. WinCC OA over OPC UA.

Remote maintenance

The RTU3030C provides remote maintenance access via WBM for access from the control room. If the RTU is in sleep mode, a text message or call will wake it up. When using the "TeleControl Basic" communication protocol, the wake-up text message can be generated in the CMT of TCSB.

Security mechanisms

Access to the RTU requires an authorization. Up to 20 different authorized email addresses or phone numbers can be defined in the WBM. Data is sent through an OpenVPN tunnel or a secure tunnel of the TeleControl Server Basic. Email messages can be encrypted (support of STARTTLS).

Diagnostics

The RTU3030C offers comprehensive diagnostic options for a quick and informative analysis of the station status. Basic diagnostic information, such as the status of the power supply, the communication connection and the inputs and outputs are signaled directly to the RTU by LEDs. The current status of the LEDs can also be retrieved through WBM.

Using the web server, comprehensive information can be retrieved, such as facts about the connection history, buffer status, and the transferred measured values.

Configuration over web server

Access to the integrated web server for diagnostics takes place locally from a PC or through the wireless communication interface. Configuration, firmware update or configuration changes can therefore be performed remotely without additional software thereby saving time and money.

Особенности

Flexible location of use
A flexible power supply concept permits use of the RTU3030C at different measuring points in a widely distributed network, regardless of an existing energy supply network.
Rugged hardware
The rugged hardware enables reliable operation even in tough environments with increased temperature range (-40 °C to +70 °C).
Flexible connection to control rooms
Thanks to reloadable telecontrol protocols, different applications and connection options to different control rooms are supported in one device.
Fast and flexible data communication
A time-driven and event-driven communication ensures that the operating personnel is informed immediately and reliably about alarms, statuses and values in the process.
Easy and cost-efficient engineering
The integrated web server enables easy configuration by means of the standard web browser without additional engineering tool.
Fully automatic time stamp
To enable subsequent and correct archiving of process data in the control system, all data frames are assigned with a time stamp at their place of origin.
Automatic buffering of process values
The data is buffered in the substations to prevent the loss of data in case of connection failures.
Safe data transmission
Use of the VPN technology OpenVPN and encrypted emails ensures secure data transmission.
Time is not lost in case of a power outage
A buffered real time clock ensures that the correct time is available even after a power outage.
Elimination of travel and maintenance expenses
Thanks to web-based management and integrated UMTS modem, configuration, diagnostics, control and monitoring can easily be performed remotely.

Технические данные

Order number		6NH3112-3BA00-0XX0
Product type designation		RTU3030C
Operating mode		Standby mode (Sleep mode), Actualization mode, Communication mode
Transmission rate
Transfer rate
● for Industrial Ethernet		10 ... 100 Mbit/s
● for GPRS transmission
— with downlink maximum		85.6 kbit/s
— with uplink maximum		85.6 kbit/s
● with UMTS transmission
— with downlink maximum		42 Mbit/s
— with uplink maximum		5.76 Mbit/s
Interfaces
Number of interfaces acc. to Industrial Ethernet		1
Number of electrical connections
● at the 1st interface acc. to Industrial Ethernet		1
● for external antenna(s)		1
● for power supply		1
Number of slots
● for SIM cards		1
● for memory cards		1
Type of electrical connection
● at the 1st interface acc. to Industrial Ethernet		RJ45 port
● for external antenna(s)		SMA socket (50 ohms)
● for power supply		5-pole plugable terminal block
Type of antenna
● at port 1 connectable		mobile communications antenna (GSM/UMTS)
Interface design 1 Note		local connection only
Slot version
● for SIM card		Mini SIM card, with adapter Micro SIM card also
● of the memory card		SD 1.0, SD 1.1, SDHC, Siemens SMC
Storage capacity of the memory card maximum		32 Gibyte
design of the removable storage C-PLUG		No
Signal-Inputs/outputs
Number of electrical connections for digital input signals		8
Type of electrical connection for digital input signals		pluggable screw terminal block
Digital input version		Suitable for open-drain transistor or switch, 2-wire-technique
Number of electrical connections as counter inputs for digital input signals		2
Pulse duration at counter input minimum		0.1 ms
Pulse frequency at counter input maximum		5 000 Hz
Number of electrical connections for digital output signals		4
Type of electrical connection for digital output signals		pluggable screw terminal block
Digital output version		bistable relay, 2-wire-technique
Output current at digital output		300 mA; Limiting continuous current
Number of analog inputs Integrated		4
Connector type at the analog input		pluggable screw terminal block
Type of analog input		2-/3-/4-wire-technique
Product function parameterizable analog inputs		Yes; Current 0/4..20mA, Voltage 0..5/10V, Temperature (Pt1000) -80..+140°C
A/D resolution at the analog input		12 bit
Wireless technology
Type of mobile wireless service
● is supported SMS		Yes
● is supported GPRS		Yes
● Note		GPRS (Multislot Class 10)
Type of mobile network is supported
● GSM		Yes
● UMTS		Yes
● LTE		No
Operating frequency
● for GSM transmission 850 MHz		Yes
● for GSM transmission 900 MHz		Yes
● for GSM transmission 1800 MHz		Yes
● for GSM transmission 1900 MHz		Yes
● with UMTS transmission 900 MHz		Yes
● with UMTS transmission 2100 MHz		Yes
Supply voltage, current consumption, power loss
Type of voltage of the supply voltage		DC
Supply voltage external at DC Rated value		12 ... 24 V
Supply voltage external at DC rated value		10.8 ... 28.8 V
Type of output voltage for the supply of external devices		DC 12 V or 24 V
Consumed current Note		without connected consumers
Consumed current
● from external supply voltage at 24 V DC
— in standby mode typical		14 mA
— in update mode typical		35 mA
— in communication mode typical		83 mA
● with battery operation at 7.2 V DC
— in standby mode typical		0.25 mA
— in update mode typical		65 mA
— in communication mode typical		192 mA
Power loss [W] Note		without connected consumers
Power loss [W] with external supply voltage at 24 V DC
● in standby mode typical		0.34 W
● in update mode typical		0.85 W
● in communication mode typical		2 W
Power loss [W] with battery operation at 7.2 V DC
● in standby mode typical		0.002 W
● in update mode typical		0.51 W
● in communication mode typical		1.5 W
Permitted ambient conditions
Ambient temperature
● for vertical installation during operation		-40 ... +60 °C
● for horizontally arranged busbars during operation		-40 ... +70 °C
● during storage		-40 ... +70 °C
● during transport		-40 ... +70 °C
Relative humidity at 30 °C without condensation during operation maximum		95 %
Protection class IP		IP20; IP68 with protective housing (see accessories)
Design, dimensions and weight
Module format		Compact module
Width		130 mm
Height		100 mm
Depth		75 mm
Net weight		0.37 kg
Mounting type
● 35 mm DIN rail mounting		Yes
● wall mounting		Yes
Performance data
Number of users/telephone numbers definable maximum		20
Number of user groups definable maximum		10
Number of program block types		30
Number of configurable program blocks		32
Performance data IT functions
Number of possible connections
● as server by means of HTTP maximum		2
● as e-mail client maximum		1
Number of free texts for e-mails definable by user		20; maximum of 160 characters per user defined text
Number of entries in the e-mail buffer maximum		12
Storage capacity of the user memory
● as flash memory file system		8 192 Mibyte
Performance data telecontrol
Suitability for use
● Node station		No
● substation		Yes
● TIM control center		No
Control center connection		control center with IEC 60870-5, DNP3 function, TeleControl Server Basic
● by means of a permanent connection		supported
● by means of demand-oriented connection		supported
Protocol is supported
● TCP/IP		Yes
● DNP3		Yes
● IEC 60870-5		Yes
● SINAUT ST1 protocol		No
● SINAUT ST7 protocol		No
● Modbus RTU		No
Product function data buffering if connection is aborted		Yes; at IEC: about. 5,000 telegrams, at DNP3: about 10,900 telegrams, at TeleControl Server Basic: about 9,300 telegrams
Amount of data as user data per station in telecontrol mode maximum		256 Kibyte
Product feature Buffered message frame memory		Yes
Performance data Teleservice
Diagnostics function online diagnostics with SIMATIC STEP 7		No
Product function
● program download with SIMATIC STEP 7		No
● Remote firmware update		Yes
Configuration software
● required		No, configuration by using the integrated webserver
Product functions Diagnosis
Product function Web-based diagnostics		Yes
Product functions Security
Suitability for operation Virtual Private Network		Yes
Operating mode Virtual Private Network note		OpenVPN-Client
Product function with VPN connection		OpenVPN
Type of encryption algorithms with VPN connection		AES-256, DES-168, BF (BlowFish)
Type of authentication procedure with VPN connection		certificate based
Type of authentication with Virtual Private Network PSK		No
Type of hashing algorithms with VPN connection		SHA-1, SHA-224, SHA-256
Number of possible connections with VPN connection		2; one simultaneous productive connection only
Product function
● password protection for Web applications		Yes
● password protection for teleservice access		Yes
● password protection for VPN		Yes
● encrypted data transmission		Yes
● switch-off of non-required services		Yes
Product functions Time
Protocol is supported
● NTP		Yes
Product component Hardware real-time clock		Yes
Product feature Hardware real-time clock w. battery backup		Yes
Accuracy of the hardware real-time clock per day maximum		1.8 s
time synchronization
● from NTP-server		Yes
● from control center		Yes
● from mobile network provider		Yes

Дальнейшая информация

Technical requirements/compatibility

Telecontrol Server Basic Version V3 SP1 is required for connection to a Telecontrol control room.