Siemens CPU 315-2 DP CPU, 6ES7315-2AF03-0AB0

SIMATIC S7-300, CPU 315-2 DP CPU with integrated 24VDC power supply.
64 kbyte working memory 2nd interface DP-Master/ Slave.

Supply voltage:
Rated value (DC): 24V
Permissible range, lower limit (DC): 20.4V
Permissible range, upper limit (DC): 28.8V
Input current:
Rated value at 24 VDC: 1000mA
Inrush current, max.: 8A
Power loss, max.: 8W
Work memory integrated: 64 kbyte; 64KB/ 21K instructions RAM (integrated)
Load memory:
Expandable FEPROM: yes; flash-EPROM
Expandable FEPROM, max.: 4 Mbyte
Integrated RAM, max.: 96 kbyte
Backup with battery: yes; all blocks
Backup without battery: yes; 4KB: bit memory, counter, times and data
CPU processing times:
For bit operations, typ.: 0.3μs
For bit operations, max.: 0.6μs
For word operations, typ.: 1μs
For fixed point arithmetic, typ.: 2μs
For floating point arithmetic, typ.: 50μs
For timer/ counter operations, typ. 12μs