SIMATIC Teleservice
Remote maintenance of automation systems

Highlights

• Shorter response times for service call-outs
• On-site service call-outs can be reduced by up to 60%
• Easy-to-handle solution, tailored to industrial automation
• Support for SIMATIC-specific services
• Support for PROFIBUS and Ethernet analog networks

The possible applications for TeleService are manifold. Plants can be diagnosed, values set and data transmitted from any place on earth via a telephone cable.TeleService contributes significantly to reduce travel and personnel costs for service calls and has therefore been a standard product in automation for a long time.

SIMATIC TeleService comprises the following coordinated components:

• TeleService adapter with integral analog or ISDN modem and serial interface for external modem, e.g. wireless modem
• TeleService software with access data management, enabling user-friendly establishment of the connection to the automation components
• Function blocks for remote maintenance, remote link, and alarm via SMS or fax

Application

• Remote maintenance
  For remote maintenance a technician dials into a remote plant by telephone. STEP 7 can be used to read status information or to correct the user program remotely.

• Remote connection
  Remote connections are used to transmit data over the telephone network. TeleService supports program-controlled connection buildup between the PG or PC and automation system. Process data exchanges between several automation systems can also be coordinated..Three types of remote connection are possible:
  • Remote connections to a plant which are initiated by a programming device or PC, for example, to transmit recipes to a remote plant or to transmit process or plant files for analysis or processing at a central office
  • Remote connections to the PG or PC initiated by the plant
  • Remote connections between two plants for exchanging process data.
• Sending a text message or e-mail from a plant
  This function can be used to send text messages by SMS from a plant to a mobile phone. TeleService can also send the SMS to a provider which then forwards the message as a fax or e-mail. The TeleService Adapter IE is used to send e-mails directly.
• Remote access to HMI device
  With the TeleService Adapter IE, it is possible to access an HMI device for remote maintenance. WinCC flexible with Sm@rt- Service/Sm@rtAccess is required for human machine interfacing. Internet Explorer or the SmartClient option is used.

Supported bus links

Security against undesired access

• Establishing connection via dial-in
• User login using CHAP
• Call-back possible
• With TeleService Adapter IE, a firewall ensures that only SIMATIC-specific services are routed through.