Siemens Simatic S7 Series

Technical specifications
A.2 S7-200 SMART CPUs
S7-200 SMART
572 System Manual, 09/2015, A5E03822230-AC
Table A- 12 Communication
Technical data
Description
Number of ports Ethernet: 1
Serial ports: 1 (RS485)
Add-on serial ports: 1 (with optional RS232/485 signal board)
HMI device 4 per port : RS485, SB CM01(RS232/485 signal board)
8 per port: Ethernet
Programming device (PG)
Ethernet: 1
Connections Ethernet: 1 for programming device, 8 for HMIs, 8 for CPUs, 8 active GET/PUT, 8 pas-
sive GET/PUT
RS485: 4 for HMIs per port
CPUs (peer-to-peer)
Ethernet: 8
Data rates Ethernet: 10/100 Mb/s
RS485 system protocols: 9600, 19200, and 187500 b/s
RS485 freeport: 1200 to 115200 b/s
Isolation (external signal to PLC
logic)
Ethernet: Transformer isolated, 1500 V AC
RS485: none
Cable type Ethernet: CAT5e shielded
RS485: PROFIBUS network cable
Table A- 13 Power supply
Technical data
CPU ST20 DC/DC/DC
CPU SR20 AC/DC/Relay
Voltage range
20.4 to 28.8 V DC
85 to 264 V AC
Line frequency
--
47 to 63 Hz
Input current CPU only at
max. load
160 mA at 24 V DC (without driving 300
mA sensor power)
430 mA at 24 V DC (with driving 300 mA
sensor power)
210 mA at 120 V AC (with 300 mA power
sensor output)
90 mA at 120 V AC (without 300 mA power
sensor output)
120 mA at 240 V AC (with 300 mA power
sensor output)
60 mA at 240 V AC (without 300 mA power
sensor output)
CPU with all
expansion
accessories
at max. load
720 mA at 24 V DC 290 mA at 120 V AC
170 mA at 240 V AC
Inrush current (max.)
11.7 A at 28.8 V DC
9.3 A at 264 V AC
Isolation (input power to logic)
--
1500 V AC
Ground leakage, AC line to func-
tional earth
-- 0.5 mA max.
Hold up time (loss of power) 20 ms at 24 V DC 30 ms at 120 V AC
200 ms at 240 V AC
Internal fuse, not user replacea-
ble
3 A, 250 V slow blow 3 A, 250 V, slow blow