Technology CPUs

Four technology CPUs with graded performances:
  • CPU 1511T-1 PN
  • CPU 1515T-2 PN/DP
  • CPU 1517T-3 PN/DP
  • CPU 1517TF-3 PN/DP
Features
CPU 1511T-1 PN
CPU 1515T-2 PN
CPU 1517T-3 PN/DP
CPU 1517TF-3 PN/DP
Work memory for program, integrated
225 KB
750 KB
3 MB
3 MB
Work memory for data, integrated
1 MB
3 MB
8 MB
8 MB
Load memory
Plug-in via SIMATIC Memory Card
Plug-in via SIMATIC Memory Card
Plug-in via SIMATIC Memory Card
Plug-in via SIMATIC Memory Card
Display diagonal
3.45 cm
6.1 cm
6.1 cm
6.1 cm
Command execution times
 
 
 
  • Bit operations
0.06 µs
0.03 µs
0.002 µs
0.002 µs
  • Word operations
0.072 µs
0.036 µs
0.003 µs
0.003 µs
  • Fixed-point operations
0.096 µs
0.048 µs
0.003 µs
0.003 µs
  • Floating-point operations
0.384 µs
0.192 µs
0.012 µs
0.012 µs
Bit memories, timers, counters
 
 
 
S7 counters/timers
2048 each
IEC counter
arbitrary (only limited by the work memory)
IEC timer
arbitrary (only limited by the work memory)
Bit memories
16 KB
I/O address range
 
Inputs
32 KB (all inputs are stored in the process image)
Outputs
32 KB (all outputs are stored in the process image)
Motion control
 
Number of motion control resources
800
2400
10240
10240
Extended functions
Yes
Yes
Yes
Yes
Integral interfaces
 
PROFINET IO IRT
1 x PN IO IRT (2 port switch)
1 x PN IO IRT (2 port switch)
1 x PN IO IRT (2-port switch)
1 x PN IO IRT (2-port switch)
PROFINET RT
-
1 x PN IO RT
1 x PN IO RT
1 x PN IO RT
PROFINET
-
-
-
-
PROFIBUS
-
-
1 x DP
1 x DP
OPC UA DA server
Yes (RT license required)
Yes (RT license required)
Yes (RT license required)
Yes (RT license required)
Web server
Yes
Yes
Yes
Yes
Standards, approvals, certificates
 
 
 
SIL according to IEC 61508: to SIL3 in each case
PL according to ISO 13849: to PLe in each case

Область применения

CPU 1511T-1 PN
for smaller applications with medium requirements on the program scope and processing speed, for distributed setup via PROFINET IO.
 
CPU 1515T-2 PN
for applications with medium/high requirements on the program scope, networking and processing speed. For distributed configuration via PROFINET IO. The additional integrated PROFINET interface with separate IP address can be used, for example, for network separation, for connecting further PROFINET IO RT devices, or for high-speed communication as an I-Device.
 
CPU 1517T-3 PN/DP
for applications with very high requirements regarding program scope, networking and processing speed. For distributed configuration via PROFINET IO and PROFIBUS DP. The additional integrated PROFINET interface with separate IP address can be used, for example, for network separation, for connecting further PROFINET IO RT devices, or for high-speed communication as an I-Device.
 
CPU 1517TF-3 PN/DP
for standard and fail-safe applications with very high requirements regarding program scope, networking and processing speed. For distributed configuration via PROFINET IO and PROFIBUS DP with PROFIsafe. The additional integrated PROFINET interface with separate IP address can be used, for example, for network separation, for connecting further PROFINET IO RT devices, or for high-speed communication as an I-Device.
 
All SIMATIC S7-1500 CPUs support motion control functions. STEP 7 provides motion control instructions that are standardized in accordance with PLCopen for configuring and connecting a drive to the CPU.
Motion control with the S7-1500 supports the following technology objects:
  • Speed-controlled axes
  • Positioning axes
  • Synchronized axes (relative synchronism with synchronization, without specification of the synchronous position, setpoint linkage)
  • External encoders
  • Cams
  • Cam track
  • Probe
The technology CPUs of the SIMATIC S7-1500 offer advanced motion control functions:
  • Extended synchronous operation functions
    • Synchronization with specification of the synchronous position
    • Actual value linkage
    • Shifting of the master value at following axis
    • Camming
  • Cam disk
  • Up to 4 encoder or measuring systems as actual position for position control