Products for Totally Integrated Automation and Micro ... - Siemens

© Siemens AG 2010SIMATIC S7-300Central processing unitsFail-safe CPUs■ Technical specifications (continued)6ES7 315-6FF04-0AB0 6ES7 315-2FJ14-0AB0 6ES7 317-2FK14-0AB0Product-type designation CPU 315F-2 DP CPU 315F-2 PN/DP CPU 317F-2 PN/DPBackup• presentYes; guaranteed by MMC(maintenance-free)Yes; guaranteed by MMC(maintenance-free)Yes; guaranteed by MMC(maintenance-free)• without battery Yes; Program and data Yes; Program and data Yes; Program and dataCPU/ blocksDB• Number, max. 1 024;Number range: 1 to 160001 024;Number range: 1 to 160002048;Number range: 1 to 16000• Size, max. 64 Kibyte 64 Kibyte 64 KibyteFB• Number, max. 1 024; Number range: 0 to 7999 1 024; Number range: 0 to 7999 2 048; Number range: 0 to 7999• Size, max. 64 Kibyte 64 Kibyte 64 KibyteFC• Number, max. 1 024; Number range: 0 to 7999 1 024; Number range: 0 to 7999 2 048; Number range: 0 to 7999• Size, max. 64 Kibyte 64 Kibyte 64 KibyteOB• Size, max. 64 Kibyte 64 Kibyte 64 KibyteNesting depth• per priority class 16 16 16• additional within an error OB 4 4 4CPU/ processing timesfor bit operations, min. 0.05 µs 0.05 µsfor word operations, min. 0.09 µs 0.09 µs 0.03 µsfor fixed point arithmetic, min. 0.12 µs 0.12 µs 0.04 µsfor floating point arithmetic, min. 0.45 µs 0.45 µs 0.16 µsTimes/counters and their retentivityS7 counter• Number 256 256 512• Retentivity- can be set Yes Yes Yes- lower limit 0 0 0- upper limit 255 255 511• Counting range- can be set Yes Yes Yes- lower limit 0 0 0- upper limit 999 999 999IEC counter• present Yes Yes Yes• Type SFB SFB SFBS7 times• Number 256 256 512• Retentivity- can be set Yes Yes Yes- lower limit 0 0 0- upper limit 255 255 511- preset no retentivity no retentivity no retentivity• Time range- lower limit 10 ms 10 ms 10 ms- upper limit 9 990 s 9 990 s 9990s5Siemens ST 70 N · 20105/19