Siemens CPU 315-2 DP Reference Manual

CPU Function, depending on CPU and STEP 7 Version
4-10
PLC S7-300, CPU Specifications CPU 312 IFM to CPU 318-2 DP
A5E00111190-01
Function
Block
See...Execution time
in ms
Application
SFC 100* Setting TOD and TOD Status MODE 1 274
MODE 2 84
MODE 3 275
Online help
Standard
and
System-
SFC 105* Reading dynamic system
resources
MODE 0 117-1832
MODE 1 138-2098
MODE 2 139-1483
functions in
STEP 7
SFC 106 Releasing dynamic system
resources
MODE 3 140-2128
MODE 1 123-1376
MODE 2 126-1334
SFC 107
resources
Creating block related messages
MODE 2 126-1334
MODE 3 125-1407
Initial call 257
SFC 108
including an acknowledgement
function
Creating block related messages
without acknowledgement function
Empty call 101
Initial call 271
Empty call 115
* MODE 0:
Depending on the size of the target area SYS_INST and the number of
system resources still to be fetched.
MODE 1 and 2:
Depends on the number of active messages (occupied system resources).
MODE 3:
Depends on the number of active messages (occupied system resources) and
the number of instances used with the CMP_ID to be found.

Siemens CPU 315-2 DP Specifications

General

Memory	64 KB
Power Supply	24 V DC
Order Number	6ES7 315-2AG10-0AB0
Number of DP Masters	1
Number of DP Slaves	124
Load Memory	64 KB
Number of Timers	256
Number of Counters	256
Data Memory	64 KB
Operating Temperature	0 to 60 °C
Integrated Interfaces	MPI, DP
Digital Outputs	Not integrated
Analog Inputs	Not integrated
Analog Outputs	Not integrated
Programming Languages	LAD, FBD, STL
Digital Inputs	Not integrated
Weight	660 g