23 is important for diagnostic tools available for S7-300 CPUs. The following link applies to Step 7 v5.x, but the diagnostic information is similar for TIAPortal. On the diagnostic buffer page there is a button named Save As., clicking on it saves all the logged messages to a text file, with all available information on possible causes of the problems. If you have access to Step 7, I suggest you go online and open your CPU's diagnostic buffer, where all events that matter to the CPU are logged, including the appearance of dianostic problems.
#Siemens simatic s7 300 sf and bf1 light series
But often when it appears along with a BF LED, it means that your program is trying to access (read or write) a node that is no longer available, due to the node being declared faulty. The SIMATIC S7-300 product series has the following approvals. Recommend item Contact information Sender name: Operating housings and support arm systems. an active SF shows a "system fault", which is more complex to decipher, could be an unreachable I/O address, a programming issue, or any number of problems. Ex enclosures Stainless steel, empty enclosure with screw fastened cover Ex enclosures Stainless steel Ex enclosures Plastic. This could be a cabling/connector problem, a missing termination on the bus (a Profibus problem) or a faulty module on a remote I/O node. The faulty node will also activate it's own BF LED to help identify it. All engine control panel have IM Controller and connected to central controller panel with Siemens simatic s-7 are.
#Siemens simatic s7 300 sf and bf1 light Pc
6ESAAXB0 ETM, INTERFACE MODULE IM SIMATIC DP, INTERFACE IM, FOR ET M, FOR MAX. NEW Siemens 6ES7647-7AL40-0AB0 SIMATIC Microbox PC 427B, Pentium M 1.4 GHz, 400MHz FSB, 2 MB SLC, PROFINET, Memory 2 GB DDR2 667, 80 GB HDD SATA, Windows XP Professional (CD) Still in stock. This SIMATIC S7 - computer family is a module in the automation concept for the manufacturing and process technique: Totally Integrated automation. Check the GSD file you loaded against the hardware and make sure the address DIP switches on the adapter are set correctly. SIMATIC DP, Connection IM, for ET M, for max. SIMATIC S7 is a product design of the company SIEMENS and is used for the current series of the programmable controllers.
If the BF1 and SF lights are flashing, there is something wrong with the networking. BF means "bus fault", and indicates a problem communicating to a node in Profibus or Profinet. If all goes well, the DC5V and Run lights on the S7-300 CPU should be green with nothing else lit. S7-300 CPUs use 2 diagnostic LEDs to show the user that something is wrong: