Siemens SIMATIC S7 System Manual page 697

Table A- 27 Communication
Technical data
Number of ports
HMI device
Programming device (PG) Ethernet: 1 connection
CPUs (PUT/GET)
Open user communication Ethernet: 8 active and
Data rates
Isolation (external signal
to PLC logic)
Cable type
Table A- 28 Power supply
Technical data
Voltage range
Line frequency
Input CPU only at
current max. load
CPU with all
expansion
accessories
at max. load
Inrush current (max.)
S7-200 SMART
System Manual, V2.3, 07/2017, A5E03822230-AF
CPU ST30 DC/DC/DC
Ethernet: 1
Serial ports: 1 (RS485)
Add-on serial ports: 1 (with
optional RS232/485 signal
board)
Ethernet: 8 connections
Serial ports: 4 connections
per port
Serial ports: 1 connection
Ethernet: 8 client and 8 server
connections
8 passive connections
Ethernet: 10/100 Mb/s
RS485 system protocols:
9600, 19200, and 187500 b/s
RS485 freeport: 1200 to
115200 b/s
Ethernet: Transformer isolat-
ed, 1500 V AC
RS485: none
Ethernet: CAT5e shielded
RS485: PROFIBUS network
cable
CPU ST30 DC/DC/DC
20.4 to 28.8 V DC
--
64 mA at 24 V DC (without
driving 300 mA sensor power)
365 mA at 24 V DC (with
driving 300 mA sensor power)
624 mA at 24 V DC
6A at 28.8 V DC
CPU SR30 AC/DC/Relay
Ethernet: 1
Serial ports: 1 (RS485)
Add-on serial ports: 1 (with
optional RS232/485 signal
board)
Ethernet: 8 connections
Serial ports: 4 connections
per port
Ethernet: 1 connection
Serial ports: 1 connection
Ethernet: 8 client and 8 server
connections
Ethernet: 8 active and
8 passive connections
Ethernet: 10/100 Mb/s
RS485 system protocols:
9600, 19200, and 187500 b/s
RS485 freeport: 1200 to
115200 b/s
Ethernet: Transformer isolat-
ed, 1500 V AC
RS485: none
Ethernet: CAT5e shielded
RS485: PROFIBUS network
cable
CPU SR30 AC/DC/Relay
85 to 264 V AC
47 to 63 Hz
92 mA at 120 V AC (with
power sensor)
40 mA at 120 V AC (without
power sensor)
52 mA at 240 V AC (with
power sensor)
27 mA at 240 V AC (without
power sensor)
136 mA at 120 V AC
72 mA at 240 V AC
8.9 A at 264 V AC
Technical specifications
A.2 S7-200 SMART CPUs
CPU CR30s AC/DC/Relay
Ethernet: 0
Serial ports: 1 (RS485)
Add-on serial ports: 0
Ethernet: Not available
Serial ports: 4 connections
per port
Ethernet: Not available
Serial ports: 1 connection
Ethernet: Not available
Ethernet: Not available
Ethernet: Not available
RS485 system protocols:
9600, 19200, and 187500 b/s
RS485 freeport: 1200 to
115200 b/s
Ethernet: Not available
RS485: none
Ethernet: Not available
RS485: PROFIBUS network
cable
CPU CR30s AC/DC/Relay
85 to 264 V AC
47 to 63 Hz
90 mA at 120 V AC
70 mA at 240 V AC
--
16.3 A at 264 V AC
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