Technical specifications
A.2 CPU 1211C
S7-1200 Programmable controller
System Manual, 03/2014, A5E02486680-AG
839
Timers
Limited only by memory size
Structure in DB, 16 bytes per timer
Counters
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- 13 Communication
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
Isolation (external signal to PLC logic)
Transformer isolated, 1500 VAC, for short term event safety only
Table A- 14 Power supply
Input
current
CPU only at max. load 60 mA at 120 VAC
30 mA at 24 VDC 300 mA at 24 VDC
CPU with all expansion
180 mA at 120 VAC
900 mA at 24 VDC 900 mA at 24 VDC
Isolation (input power to logic)
Ground leakage, AC line to functional
0.5 mA max. -- --