CP 1242-7 V2 GPRS

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The CP 1242-7 GPRS V2 communications processor is used to connect a SIMATIC S7-1200 to the globally available GSM/GPRS mobile radio network and has the following characteristics:

Worldwide wireless exchange of data between S7-1200 controllers and/or between S7-1200 controllers and control centers with an Internet connection
Communication based on the GPRS (General Packet Radio Service) mobile wireless service with data transmission speeds of up to 86 Kbit/s in the downlink and 43 Kbit/s in the uplink
GPRS mode with fixed IP addresses and dynamic IP addresses with standard mobile phone contract
Time synchronization on the basis of NTP (Network Time Protocol)
Sending and receiving of text messages
LED signaling for fast diagnostics
Compact industrial enclosure in S7-1200 design for mounting on a standard mounting rail
Fast commissioning thanks to easy configuration using STEP 7

In conjunction with the TeleControl Server Basic software, the CP 1242-7 forms a telecontrol system with additional properties:

Connection of up to 5000 telecontrol stations to the control center via an OPC interface
Data buffering in the substations in the event of connection failures
Central status monitoring of the substations
No special provider services required for fixed IP addresses
Teleservice access with STEP 7 to the substations via the Internet

The CP 1242-7 V2 is a new product version of the CP 1242-7. The concept for process data transmission has been expanded with a simple data point configuration, which enables substantially easier commissioning without high programming overhead and minimizes susceptibility to errors during the projects implementation phase. CP 1242-7 has also been equipped with new functions, such as access to the internal Web server of the S7-1200. This opens up numerous new application areas.

Область применения

Using CP1242-7 GPRS V2 enables the S7-1200 to be used as a remote terminal unit (substation) in telecontrol applications. Typical application examples are the collection of measured values in outdoor areas over widely distributed geographical areas (level measurement for water tanks in the water/waste water industry) or centralized opening and closing of valves (oil/gas transport in pipelines).

Data exchange and centralized data monitoring for automation solutions spread over large geographical areas
Establishment of permanent or temporary communication link for mobile machines/vehicles without permanent location
Global remote access to the end customer's machinery in compliance with IT security requirements
Connection of difficult-to-access external stations without a network infrastructure

These applications can be found in the most diverse sectors:

Water/wastewater treatment plants – pump/valve controllers
Traffic and transportation – traffic light controls, lighting controls
Power engineering – monitoring of transformer stations, meter readout
Mechanical engineering – centralized remote maintenance of machines used around the world
Wind energy – condition monitoring of wind turbines
Vending machine manufacturers – monitoring, control of beverage vending machines

Дизайн

The CP 1242-7 GPRS V2 offers all the advantages of the S7-1200 design:

Rugged, compact plastic enclosure
Easily accessible connection and diagnostics elements, protected by front flaps
Removable connecting terminals
Simple mounting on the mounting rail of the S7-1200
3-pin plug-in terminal strip for connection of the 24 V DC external supply voltage
SMA connection for GSM/GPRS antennas

The CCP 1242-7 GRPS V2 is plugged into the left system bus interface of the S7-1200. The power is supplied via a 3-pin terminal strip on top of the module. The antenna socket and the SIM card slot are located on the underside of the module, protected by the lower front flap.

Функции

The CP 1242-7 GPRS V2 is a communication module for the S7-1200. The module allows the S7-1200 to be connected as a remote station to TeleControl Server Basic via the mobile radio network in just a few steps.

Connection of the SIMATIC S7-1200 to TeleControl Server via mobile radio and DSL internet access

Completely configurable application through "data point configuration"

The introduction of the "data point configuration" in STEP 7 dispenses with all programming effort for transfer of data to the control center.

The data of the CPU relevant to the control center is selected via user-friendly "item browsing" in STEP 7. In a clearly-arranged menu, the data transfer parameters are then assigned to the data points selected in this way. The cyclic or event-controller transfer of measurements, setpoints or alarms can thus be implemented in only a few operations and without programming effort.

Data backup

Data losses are prevented by the data buffering mechanisms integrated in the product.

In the event of a connection failure, up to 64,000 time-stamped values are buffered. When the connection returns, the buffered values are automatically transferred to the control center in the right order.

E-mail notification

Alert e-mails can be configured for timely provision of stations' states to service or maintenance personnel. If previously defined events (such as threshold violation) should occur, application-specific information is sent automatically by e-mail.

Diagnostics

The CP 1242-7 GPRS V2 offers comprehensive diagnostic options for a quick and informative analysis of the station status. Elementary diagnostic information about the connection to the control center is signaled directly via LEDs at the CP.

Using STEP 7 and the Web server, comprehensive information can be retrieved, such as connection history, buffer status or the transferred measured values.

Remote maintenance

For remote access from the control center to the substation, the CP provides a remote maintenance port in parallel with process operation. This ensures access for monitoring and program changes.

Web server access

Access to the Web server of the CPU via the mobile wireless interface for easy diagnostics.

Особенности

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.
Fast and flexible data communication
Operators are therefore quickly provided with alarms, statuses and values from the process, and they can influence process control by entering commands or setpoints at any time.
Simple and low-cost engineering
The cyclic or event-controller transfer of measurements, setpoints or alarms can be implemented in only a few operations and without programming effort.
Remote diagnostics
Saves traveling and maintenance costs due to cost-effective remote programming, diagnostics, control and monitoring via the Internet.

Технические данные

Order number		6GK7242-7KX31-0XE0
Product type designation		CP 1242-7 V2
Transmission rate
Transfer rate
● for GPRS transmission
— with downlink maximum		86 kbit/s
— with uplink maximum		43 kbit/s
Interfaces
Number of interfaces acc. to Industrial Ethernet		0
Number of electrical connections
● for external antenna(s)		1
● for power supply		1
Number of slots
● for SIM cards		1
Type of electrical connection
● for external antenna(s)		SMA socket (50 ohms)
● for power supply		3-pole terminal block
Slot version
● for SIM card		Standard
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		No
● LTE		No
Operating frequency
● 850 MHz		Yes
● 900 MHz		Yes
● 1800 MHz		Yes
● 1900 MHz		Yes
Transmit power
● at operating frequency 900 MHz		2 W
● at operating frequency 1800 MHz		1 W
● at operating frequency 1900 MHz		1 W
Supply voltage, current consumption, power loss
Type of voltage of the supply voltage		DC
Supply voltage external		24 V
Supply voltage external at DC Rated value		24 V
Relative positive tolerance at DC at 24 V		20 %
Relative negative tolerance at DC at 24 V		20 %
Consumed current
● from external supply voltage at DC at 24 V typical		0.1 A
● from external supply voltage at DC at 24 V maximum		0.22 A
Power loss [W]		2.4 W
Permitted ambient conditions
Ambient temperature
● for vertical installation during operation		-20 ... +60 °C
● for horizontally arranged busbars during operation		-20 ... +70 °C
● during storage		-40 ... +70 °C
● during transport		-40 ... +70 °C
Relative humidity at 25 °C without condensation during operation maximum		95 %
Protection class IP		IP20
Design, dimensions and weight
Module format		Compact module S7-1200 single width
Width		30 mm
Height		100 mm
Depth		75 mm
Net weight		0.133 kg
Mounting type
● 35 mm DIN rail mounting		Yes
● S7-300 rail mounting		No
● wall mounting		Yes
Product properties, functions, components general
Number of units
● per CPU maximum		3
Performance data
Number of users/telephone numbers definable maximum		10
Performance data open communication
Number of possible connections for open communication
● by means of T blocks maximum		like CPU
Performance data IT functions
Number of possible connections
● as e-mail client maximum		1
Performance data telecontrol
Control center connection		Telecontrol Server Basic
● by means of a permanent connection		supported
● by means of demand-oriented connection		supported
● Note		Connection to SCADA system using OPC interface
Protocol is supported
● DNP3		No
● IEC 60870-5		No
Product function data buffering if connection is aborted		Yes; 64,000 values
Performance data Teleservice
Diagnostics function online diagnostics with SIMATIC STEP 7		Yes
Product function
● program download with SIMATIC STEP 7		Yes
● Remote firmware update		Yes
Configuration software
● required		STEP 7 Basic/Professional V13 SP1 or higher
Product functions Diagnosis
Product function Web-based diagnostics		Yes
Product functions Security
Product function
● password protection for teleservice access		Yes
● encrypted data transmission		Yes
Product functions Time
Protocol is supported
● NTP		Yes
time synchronization
● from control center		Yes

Дальнейшая информация

Technical requirements/compatibility

CPU:
A S7-1200 CPU as of firmware version 4.1 is required for operation.

Engineering:
STEP 7 Basic/Professional V13 SP1 (TIA Portal) or higher must be used for configuration.

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