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/DPNumber of DP masters• integrated 1 1 1• via CP 4 4 4Number of operable FMs and CPs(recommended)•FM 8 8 8• CP, point-to-point 8 8 8• CP, LAN 10 10 10Time of dayClock• Hardware clock (real-time clock) Yes Yes Yes• battery-backed and synchronizable Yes Yes Yes• Behavior of the clock following expiry ofbackup periodThe clock continues at the timeof day it had when power wasswitched offThe clock continues at the timeof day it had when power wasswitched offThe clock continues at the timeof day it had when power wasswitched off• Deviation per day, max. 10 s; Typ.: 2 s 10 s; Typ.: 2 s 10 s; Typ.: 2 sRuntime meter• Number 1 1 4• Number/Number range 0 0 0 to 3• Range of values0 to 2^31 hours(when using SFC 101)0 to 2^31 hours(when using SFC 101)0 to 2^31 hours(when using SFC 101)• Granularity 1 hour 1 hour 1 hour• retentiveYes; Must be restarted at eachrestartYes; Must be restarted at eachrestartYes; Must be restarted at eachrestartClock synchronization• supported Yes Yes Yes• to MPI, master Yes Yes Yes• to MPI, slave Yes Yes Yes• to DP, masterYes; on DP slave only time-ofdayslaveYes; on DP slave only time-ofdayslaveYes; on DP slave only time-ofdayslave• to DP, slave Yes Yes Yes• in AS, master Yes Yes Yes• in AS, slave Yes Yes• on Ethernet via NTP Yes; as client Yes; as clientS7 message functionsNumber of login stations for messagefunctions, max.16; Depending on the connectionsconfigured for PG/OP andS7 basic communication16; Depending on the connectionsconfigured for PG/OP andS7 basic communication32; Depending on the connectionsconfigured for PG/OP andS7 basic communicationProcess diagnostic messages Yes Yes Yessimultaneously active Alarm-S blocks, max. 300 300 300Test commissioning functionsStatus/control• Status/control variable Yes Yes Yes•VariablesInputs, outputs, memory bits,DB, times, countersInputs, outputs, memory bits,DB, times, countersInputs, outputs, memory bits,DB, times, counters• Number of variables, max. 30 30 30• of which status variables, max. 30 30 30• of which control variables, max. 14 14 14Forcing• Forcing Yes Yes Yes• Force, variables Inputs, outputs Inputs, outputs Inputs, outputs• Number of variables, max. 10 10 105Siemens ST 70 N · 20105/21