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HomeProductsStandard Automation ProductsSiemensTechnical data for failsafe CPUs

Technical data for failsafe CPUs


CPU CPU 315F-2 DP 1) CPU 315F-2 PN/DP CPU 317F-2 DP 1) CPU 317F-2 PN/DP

CPU 319F-3 PN/DP

Dimension (mm)
40 x 125 x 130 80 x 125 x 130 80 x 125 130 120 x 125 x 130
Order No. group: 6ES7 312-6FF. 315-2FH. 317-6FF. 317-2FK. 318-3FL
RAM 192 KB 256 KB 1 MB

1.4 MB

Instructions 36 K (F instr.) 50 K (F instr.) 20 K (F instructions) 280 K (F onstr.
Processing times
Bit operation 0,1µs 0,05µs 0,01 µs
Word operation 0,2µs 0,2µs 0,02µs
Fixed-point operation 2 µs 0.2 µs 0.02 µs
Floating-point operation 3 µs 1 µs 0.04 µs
Bit memories/timers/counters
Bit memory 2048 bytes 4096 bytes 8182 bytes
S7 timers/counters 256/256 512/512 2048/2048
IEC timers/counters
Address areas
I/O (bytes) 2048/2048 8192/8192 8192/8192 8192/8192
I/O Process image 128/128 bytes 256/256 bytes 2048/2048 bytes 2048/2048 bytes
Digital channels (central) 1024 1024 1024 1024
Analog channels (central) 256 256 256 256
DP interface
DP maser systems internally/CP ■/■ ■/■ ■/■
DP slave
PROFINET interface
ISO-on-TCP (RFC 1006)    
Web server    



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