***Spare part*** SIMATIC S7-300, CPU 315-2DP Central processing
unit with MPI Integr. power supply 24 V DC Work memory 128 KB
2nd interface DP master/slave Micro Memory Card required
General information
HW functional status 01
Firmware version V2.6
Engineering with
● Programming package STEP 7 V5.2 + SP1 or higher with HW update
Supply voltage
Rated value (DC)
● 24 V DC Yes
permissible range, lower limit (DC) 20.4 V
permissible range, upper limit (DC) 28.8 V
external protection for power supply lines
(recommendation)
2 A min.
Input current
Current consumption (rated value) 0.8 A
Current consumption (in no-load operation), typ. 60 mA
Inrush current, typ. 2.5 A
I²t 0.5 A²·s
Power loss, typ. 2.5 W
Memory
Work memory
● integrated 128 kbyte; For program and data
● expandable No
Load memory
● Plug-in (MMC) Yes
● Plug-in (MMC), max. 8 Mbyte
● Data management on MMC (after last
programming), min.
10 y
Backup
● present Yes; Guaranteed by MMC (maintenance-free)
● without battery Yes; Program and data
CPU processing times
for bit operations, typ. 0.1 µs
for word operations, typ. 0.2 µs
for fixed point arithmetic, typ. 2 µs
for floating point arithmetic, typ. 3 µs
CPU-blocks
Number of blocks (total) 1 024; (DBs, FCs, FBs OBs, SDBs); the maximum number of
loadable blocks can be reduced by the MMC being used.
DB
● Number, max. 1 023; Number band: 1 to 1023
● Size, max. 16 kbyte
FB
● Number, max. 1 024; Number range: 0 to 2047
● Size, max. 16 kbyte
FC
● Number, max. 1 024; Number range: 0 to 2047
● Size, max. 16 kbyte
OB
● Size, max. 16 kbyte
● Number of free cycle OBs 1; OB 1
● Number of time alarm OBs 1; OB 10
● Number of delay alarm OBs 1; OB 20
● Number of cyclic interrupt OBs 1; OB 35
● Number of process alarm OBs 1; OB 40
● Number of DPV1 alarm OBs 3; OB 55, 56, 57
● Number of startup OBs 1; OB 100
● Number of asynchronous error OBs 1; OB 80
● Number of synchronous error OBs 2; OB 121, 122
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