Siemens S7-1200 - Page 881

Technical specifications
A.6 CPU 1217C
S7-1200 Programmable controller
System Manual, 03/2014, A5E02486680-AG
881
Element
Description
Nesting depth 16 from the program cycle or startup OB
6 from any interrupt event OB
Monitoring
Status of 2 code blocks can be monitored simultaneously
OBs
Program cycle
Multiple
Startup
Multiple
Time-delay interrupts
4 (1 per event)
Cyclic interrupts
4 (1 per event)
Hardware interrupts
50 (1 per event)
Time error interrupts
1
Diagnostic error interrupts
1
Pull or plug of modules
1
Rack or station failure
1
Time of day
Multiple
Status
1
Update
1
Profile
1
Timers
Type
IEC
Quantity
Limited only by memory size
Storage
Structure in DB, 16 bytes per timer
Counters
Type
IEC
Quantity
Limited only by memory size
Storage Structure in DB, size dependent upon count type
• SInt, USInt: 3 bytes
• Int, UInt: 6 bytes
• DInt, UDInt: 12 bytes
Table A- 91 Communication
Technical data
Description
Number of ports
2
Type
Ethernet
HMI device
6 max.
Programming device (PG)
1
Connections
• 8 for Open User Communication (active or passive): TSEND_C,
TRCV_C, TCON, TDISCON, TSEND, and TRCV
• 3 for server GET/PUT (CPU-to-CPU) S7 communication
• 8 for client GET/PUT (CPU-to-CPU) S7 communication
Data rates
10/100 Mb/s
Isolation (external signal to PLC logic)
Transformer isolated, 1500 VAC, for short term event safety only
Cable type
CAT5e shielded