1) The document discusses various power supply modules, input/output modules, and central processing units for the SIMATIC S7-300 automation system. 2) It provides information on the specifications, features, and functions of different module types, including power supply wattage and voltage options, number of input/output channels, and diagnostic capabilities. 3) The document also shows front and side views of the modules and describes the LED indicators and switches used to monitor and control module and CPU functions.

1. SIMATIC S7-300
Power Supply Modules (PSs) - Overview
PS 305 2A
365 - 0BA01- 0AA0
X 2
3 4
PS307
5A
DC 5V
VOLTAGE
SELECTOR
ON
OFF
PS 307 5A
307 - 1BA00- 0AA0
PS307
5A
X 2
3 4
DC 5V
VOLTAGE
SELECTOR
ON
OFF
307 - 1BA00- 0AA0
PS307
5A
X 2
3 4
DC 5V
VOLTAGE
SELECTOR
ON
OFF
PS 307 10A
SIEMENS

2. SIMATIC S7-300
Power Supply Module - Front Plate Control
SIEMENS
230V
Voltage Selector
Switch
LED for 24V DC
L1
N
L+
M
L+
L+
M
M
E
Terminals for 24V DC
output Voltage

3. SIMATIC S7-300
Power Supply Modules - Features
Characteristics
 High efficiency
 Fan-free operation
 Making current limited in accordance with NAMUR
recommendation
 Short-circuit-proof outputs
 Electromagnetic emission and immunity corresponding to
EN50081-2/EN50082-2
SIEMENS

4. SIMATIC S7-300
Power Supply Modules - Electrical Specifications
Details PS 307 2A PS 307 5A PS 307 10A
Input Voltage 120/230V AC 120/230V AC 120/230V AC
Max. Output
Current 2A 5A 10A
Short cct.
Protection Yes Yes Yes
Output Voltage 24 DC±5% 24 DC±5% 24 DC±5%
SIEMENS

5. SIMATIC S7-300
SIMATIC S7- 300 System.
SIEMENS

6. SIMATIC S7-300
CPU314
SIEMENS
SF
BATF
DC5V
FRCE
RUN
STOP
RUN-P
RUN
STOP
M RES
SIMATIC
S7-300
Battery MPI
CPU315-2 DP
SIEMENS
RUN-P
RUN
STOP
M RES
SIMATIC
S7-300
Battery DP
SF
BATF
DC5V
FRCE
RUN
STOP
MPI
SF DP
BUSF
CPU 31X CPU 31X-2DP
SIMATIC S7- 300 : CPU Front Plate Controls.
SIEMENS

7. SIMATIC S7-300
Central Processing Unit ( CPU ): LED Indicators
SIEMENS
CPU 312 IFM
CPU 313
CPU 314/ 314 IFM
CPU 315/ 315-2DP
CPU 316-2DP
CPU 318-2
SF
BATF
DC5V
FRCE
RUN
STOP
SF
BATF
DC5V
FRCE
RUN
STOP
SF DP
BUSF
CPU in RUN
CPU in STOP
Physical
bus fault
5V DC Supply
Battery fault
Group fault
Forcing
No configuration
or incorrect
configuration

8. SIMATIC S7-300
Central Processing Unit ( CPU ): Mode Selector Switch
SIEMENS
RUN _ P
RUN
STOP
RUN_P :
• The CPU scan the User Program.
• The key cannot be taken out in this position.
• Reading a program from CPU is possible
• Changed program can loaded into the CPU
RUN :
• The CPU scan the User Program.
• The key can be taken out in this position.
• Reading a program from CPU is possible
• Changed program can not be loaded into the CPU
STOP :
• The CPU does not scan the User Program.
• The key can be taken out in this position.
• Reading a program from CPU is possible
• Changed program can be loaded into the CPU
MRES
MRES :
• The momentory contact position for resetting the
CPU memory.
• You must observe the special procedure for it.
• The contents of integrated retentive memory
remains unchanged.

9. SIMATIC S7-300
Central Processing Unit ( CPUs ):
SIEMENS
Types of CPUs
Modular
( without I/Os)
CPU with MPI Port CPU with MPI Port + DP Port
MPI Port
Local I/Os
CPU 312 IFM
CPU 314 IFM
CPU 313
CPU 314
CPU 315
MPI Port
CPU 315-2DP
CPU 316-2DP
CPU 318-2DP
DP-Port
Stand alone
( with local I/Os)

10. SIMATIC S7-300
CPU 318-2
84 K / 256 Kbyte
512 Kbyte
yes
1024
256
0,1 ms
8192
512
512
PROFIBUS-DP
(Master/Slave)
with 125 stations;
MPI usable as
DP (12 MBaud)
Instructions/Data
User memory
Free addressing
DI / DO
AI / AO
Processing time/
1 K bin. instructions
Bit memories
Counters
Timers
CPU 314
8 K / -
24 KByte
no
1024
256
0,3 ms
2048
64
128
CPU 313
4 K / -
12 Kbyte
no
256
64
0,6 ms
2048
64
128
CPU 315
(CPU 315-DP)
16 (21) K / -
48 (64) KByte
no (yes)
1024
256
0,3 ms
2048
64
128
(PROFIBUS-
DP interface
master/slave
with 64 DP-
stations)
CPU 316-2DP
42 K / -
128 KByte
yes
1024
256
0,3 ms
2048
64
128
PROFIBUS-
DP interface
master/slave
with 64 DP-
stations
Central Processing Unit ( CPUs ): Specifications
SIEMENS

11. SIMATIC S7-300
CPU 312 IFM
2 K
6 KByte
no
256
64
0,6 ms
1024
32
64
10 DI / 6 DQ
Instructions
User memory
Free addressing
DI / DO
AI / AO
Processing time/
1 K binary instructions
Bit memories
Counters
Timers
For integrated
functions
CPU 314 IFM
10 K
32 KByte
no
1024
256
0,3 ms
2048
64
128
20 DI / 16 DQ /
4 AI / 1 AQ
IFM Central Processing Unit ( CPUs ): Specifications
SIEMENS

12. SIMATIC S7-300
SMs (Digital) - Basic Characterisitcs
SIEMENS
331 -
7KF00
- 0AB0
SM
331
AI
8x12
Bit
S
F
X
2
3
4
 Digital signals from 24 to 230 V,
DC or AC,
 20- or 40-pin front connector with screw-
type connections and spring-loaded
connections
 Powerful modules
 Process interrupt
 Diagnostics interrupt
 Setup via parameterization, no more
hardware settings

13. SIMATIC S7-300
Digital Input Module: SM 321( 24V DC )
L+ 24V
Mint
S7-300
Backplane
Bus.
M
Sensor
331 -
7KF00 -
0AB0
SM
331
AI
8x12
Bit
S
F
X
2
3
4
SM 321 ( DI ): Simple Block Diagram
SIEMENS

14. SIMATIC S7-300
Digital Input Module: SM 321
3
3
1
-
7
K
F
0
0
-
0
A
B
0
S
M
3
3
1
A
I
8
x
1
2
B
it
S
F
X
2
3
4
SM 321 ( DI ): Module Overview
SIEMENS
Module
Description
Number of
Channels
Rated input
Voltage
Diagnostic& Hard
ware Interrupt
SM 321: 6ES7 321 1BLx0 0AA0 32 X 24 V DC No
SM 321: 6ES7 321 1BH02 0AA0 16 X 24 V DC No
SM 321: 6ES7 321 7BHx0 0AA0 16 X 24 V DC Yes
SM 321: 6ES7 321 1BH50 0AA0
( Source type )
16 X 24 V DC No
SM 321: 6ES7 321 1CH80 0AA0 16 X 48 - 125 V DC No
SM 321: 6ES7 321 1EH01 0AA0 16 X 120 VAC No
SM 321: 6ES7 321 1EL00 0AA0 32 X 120 VAC No
SM 321: 6ES7 321 1FFx1 0AA0 8 X 120/230 VAC No
X = 0,1,2 etc.

15. SIMATIC S7-300
SM 321 ( DI ): Specifications
SIEMENS
 Digital signals from 24 to 230 V, DC and AC.
 20- or 40-pin front connector with screw-type connections
and spring-loaded connections
 Powerful modules
 Process interrupt
 Diagnostics interrupt
 Setup via parameterization, no more hardware settings
 Status : Yes, Green LED per channel.
 No. of Channels : 8, 16, 32.
 All Modules are Single Width ( 125 X 130 X40 mm )

16. SIMATIC S7-300
Digital Output Module: SM 322( 24V DC)
331 -
7KF00 -
0AB0
SM
331
AI
8x12
Bit
S
F
X
2
3
4
SM 322 ( DQ ): Simple Block Diagram
SIEMENS
24V
M
Min
t
S7-300
Backplane
Bus.
L +

17. SIMATIC S7-300
Digital Output Module: SM 322
3
3
1
-
7
K
F
0
0
-
0
A
B
0
S
M
3
3
1
A
I
8
x
1
2
B
i
t
S
F
X
2
3
4
SM 322 ( DQ ): Module Overview
SIEMENS
Module
Description
Number of
Channels
Rated output
Voltage/current
Diagnostic&Hard
ware Interrupt
SM 322: 6ES7 322 1BL00 0AA0 32 X 24 V DC/0.5A No
SM 322: 6ES7 322 1BHx1 0AA0 16 X 24 V DC/0.5A No
SM 322: 6ES7 322 1BF01 0AA0 8 X 24 V DC/2A No
SM 322: 6ES7 322 8BFx1 0AA0 8 X 24 V DC/0.5A Yes
SM 322: 6ES7 322 1CF80 0AA0 8 X 48 - 125 V DC/
1.5A
No
SM 322: 6ES7 322 1EH01 0AA0 16 X 120 VAC/1A No
SM 322: 6ES7 322 1FFx1 0AA0 8 X 120 /230VAC/2A No
SM 322: 6ES7 322 1EL00 0AA0 32 X 120 VAC / 1A No
X = 0,1,2 etc.

18. SIMATIC S7-300
SIEMENS
M
Mint
S7-300
Backplane
Bus.
L +
24V
Block Diagram :
SM 322 ( Digital Relay Output ) : Simple Block Diagram

19. SIMATIC S7-300
SM 322 ( DQ , Relay ) : Module Overview
SIEMENS
3
3
1
-
7
K
F
0
0
-
0
A
B
0
S
M
3
3
1
A
I
8
x
1
2
B
i
t
S
F
X
2
3
4
Module
Description
Number of
Channels
Rated output
Voltage / Current
Number of
outputs
SM 322: 6ES7 322 1HH00 0AA0 16 X 24 - 120 V DC/2A - 0.2A
48 - 120 VAC/1.5A-0.5A
Isolated in
group 8
SM 322: 6ES7 322 1HF01 0AA0 8 X 24 - 120 VDC/ 2A - 0.2A
48 - 230 VAC/2A - 0.5A
Isolated in
group 2
SM 322: 6ES7 322 1HF80 0AA0 8 X 24 to 120 VDC
48 to 230 VAC
Isolated in gp. 1
5A REL.
SM 322: 6ES7 322 1HF20 0AA0 8 X 24 to 120 VDC
48 to 230 VAC
Isolated in gp. 1
5A REL.

20. SIMATIC S7-300
SM 322 ( DQ ) : Specifications
SIEMENS
 Different voltages
 24 - 120 V DC; 120 - 230V AC
 Different number of channels
 4, 8, 16 or 32 channels
 Different output currents
 0.5; 1 ; 1,5 ; 2 ; 3 or 5 A
 Electronic / relay outputs
 Modules with/without diagnostics capability
(Front connector unplugged; module defective
indication; short-circuit; etc.)
 Status : YES, Green colour LED per channel