SIMATIC Industral Software - Tools for configuring and programming ...

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S7-PDIAG and ProAgent for effective process diagnostics 20 Diagnostics Task Open/closed monitoring for a press. If the press is closed for longer than 2 minutes (the stamp of the press is down), a fault has occurred. Solution with S7-PDIAG The function block to be monitored is created using STEP 7. The upper left figure shows the relevant program section that has been programmed using LAD. The relevant operand has been marked yellow. If this is selected, the input window of S7-PDIAG shown in the same figure is opened. The monitoring criteria as well as the text message for the HMI system are entered here. The program code that is required for monitoring is automatically created and executes independently of the actual user program. Solution without S7-PDIAG If S7-PDIAG is not used, the relevant error monitoring must be explicitly programmed. A possible solution is shown in the lower left figure. The text message also has to be assigned in the display unit. The program code necessary for diagnostic purposes can include timers, counters and bit memories which are then no longer available to be used by the user program. The program will, however, become less clear which can cause problems when changes have to be implemented later.
Remote maintenance via TeleService Machines and plants are increasingly operated in places which are far away from the place of manufacture. Manufacturers of plants must nevertheless be able to provide support in the event of a fault. Especially during the warranty period this can result in high costs. TeleService helps to reduce this risk. 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 tool in automation for a long time. Application Remote connections with TeleService can be used for remote maintenance and remote linking. Remote maintenance permits access to a CPU with STEP 7 or an HMI device over WinCC. A remote link is a connection for data transmission. TeleService also allows text messages to be sent by SMS or e-mail through SIMATIC controllers. 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 an SMS or an 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. TeleService adapter with integrated modem Connection build-up Access to the automation network is not via the virus-prone office network, but instead using a login and password, over a secure connection from the telephone network through the TeleService adapter directly into the automation network. In addition to password protection, a call back function is provided. When this function is activated, the system calls a specified number back and establishes the connection to this number. In the case of Industrial Ethernet, the firewall integrated into the TeleService Adapter IE that is configured for automation tasks ensures that only the relevant ports and utilities are enabled. The connection to the automation systems is established using existing communication networks: ■ Analog telephone network ■ ISDN ■ Mobile telephone network The TeleService adapter already includes a modem for connections to automation systems. A PG or PC in the plant is not required. Apart from the version of the TeleService Adapter with an MPI, PROFIBUS DP and PPI interface, an IE version with an interface to Industrial Ethernet is now also available. This means that for teleservice with a PROFINET CPU, for example, the new industry-compatible router can be installed in a rack and operated from an external 24 V supply. Diagnostics 21
Page 1 and 2: 1 SIMATIC Industrial Software Tools
Page 3 and 4: Contents Standard tools STEP 7 Prof
Page 5 and 6: Standard tools STEP 7 Professional
Page 7 and 8: STEP 7 Basis Universal development
Page 9 and 10: STEP 7 Basis Universal development
Page 11 and 12: Engineering tools S7-SCL Programmin
Page 13 and 14: S7-PLCSIM Software testing without
Page 15 and 16: CFC - Interconnection and parameter
Page 17 and 18: Modular PID control SIMATIC control
Page 19: S7-PDIAG and ProAgent for effective
Page 23 and 24: SIMATIC iMap Function In SIMATIC iM
Page 25 and 26: Premium Studio Premium Studio offer
Page 27 and 28: Experts for outstanding, tailor-mad

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