CPU modules
4.1 CPU module CPU555
SIMATIC TDC hardware
86
System Manual, 08/2017, A5E01114865-AL
User program size
The size of the user program (compressed to approx. 50 %) that was downloaded to
program memory and the size of free program memory can be viewed in the CFC by
selecting the following menu command:
●
PLC / Load / Info
Utilization
Average load (measured with block PSL) should not exceed 90%, since this may lead to
sporadic overload.
Program memory
The user program created in CFC is downloaded to program memory. Program memory
features Flash EPROM (2, 4 or 8 MB).
Program memory for user program: See Additional components (Page 82)
PROFINET interfaces
LAN interfaces
•
Support of distributed I/O
•
Operating control and monitoring
•
Communication with a PC
•
Download function
•
TCP/UDP communication with other CPUs
•
Set time of day
PROFINET I/O interfaces
1)
•
X1 P1 R PN (LAN): 10/100 Mbps
•
X1 P2 R PN (LAN): 10/100 Mbps
•
X1 P3 PN (LAN): 10/100 Mbps
1) All X1 interfaces have the same IP address
I/O address range
Inputs
8192 bytes
Outputs
8192 bytes
Process image partition
Quantity
1
Address area
Inputs, max.
8192 bytes
Outputs, max.
8192 bytes
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