Siemens simatic s7-300 sf on and bf1 light blinking

#Siemens simatic s7 300 sf on and bf1 light blinking manual#
#Siemens simatic s7 300 sf on and bf1 light blinking windows#

If any of the messages in the diagnostic buffer seem to relate to your SF/BF, but you find it difficult to understand, copy and paste them here, we might be able to help you understand the source of the problem. The SF could be related to addressing issues in the program, if you are using addresses that are associated with a slave that is in BF the CPU will complain through a SF LED. It could also mean that the slave is not reachable over the Profibus network in that case check the cable, connectors and termination. Review the configuration of the slave in HWConfig. Look for messages related to slave addresses, OB86 (node failure OB), OB 121 (Programming error).ДЄ BF signals a Bus Fault, which means either that the bus address of the ET 200M does not match what you have configured in the HWConfig editor, or that you have not selected the correct part number for the IM 153-x head module of the ET 200M, or that the modules configured in the ET 200M do niot match the actual ones. So your first step is to open the diagnostic buffer (CTRL + D in the Simatic Manager, or Menu- Tools- Module Information). You can attach the text file to this thread so we can examine it with you, and help you find out what the CPU is complaining about.The documents proposed are very good, but for now start with the diagnostics provided by your CPU.Д®very time an 'event' happens in your program (and SF/BF are considered an event) it will be logged in the diagnostic buffer of the CPU.

#Siemens simatic s7 300 sf on and bf1 light blinking manual#

This manual provides you with descriptions of the system functions, organization blocks and loadable standard functions.

Switch on the power supply module or replace the IM 153-1. 23 is important for diagnostic tools available for S7-300 CPUs. STEP 7 - System and Standard Functions for S7-300 and S7-400 WinLC RTX includes integrated system functions and organization blocks, which you can use when programming. hi alli have a problem with my plc model (6es7 151-8abo1-0ab0)(SF) and (BF-PN) fault both go to red lightand all thy systm not working (not responding to any order from HMI and siemens inverters fault 0. SF BF ON LEDs SF BF ON Meaning Remedy off off off No voltage on the IM 153-1 or there is a hardware fault with the IM 153-1. 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. 300 OHM 600 OHM, CYCLE TIME 110 MS/CHANNEL WITH LED SF (GROUP FAULT)SIMATIC DP. 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. 12 S7-300 modules with redundancy capability, Timestamping suitable for. 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. 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. BF means 'bus fault', and indicates a problem communicating to a node in Profibus or Profinet. The operating conditions surpass requirements to DIN IEC 6.

#Siemens simatic s7 300 sf on and bf1 light blinking windows#

S7-300 CPUs use 2 diagnostic LEDs to show the user that something is wrong: S7-300 systems are designed for stationary use in weather-proof locations. Chapter 1 Basic S5 Programming -1 TTI Trans Tech International 2013 STEP 5 S5 for Windows Training 1 Basic S5 Programming 1.

Siemens simatic s7-300 sf on and bf1 light blinking