Siemens CPU 312 IFM User Manual

CPUs
1-73
PLC S7-300, CPU Specifications CPU 312 IFM to CPU 318-2 DP
A5E00111190-01
DP Master
 Services
– Equidistance Yes
– SYNC/FREEZE Yes
– Activation/deactivat
ion of DP slaves
Yes
 Transmission rates Up to 12 Mbps
 Address area max. 2 KB I/2 KB O
 User data per DP slave max. 244 bytes I and
244 bytes O
DP Slave
 Services
– Status/Modify;
Program; Routing
Yes, can be activated
 Device master file siem807f.gsg
 Transmission rate Up to 12 Mbps
 Transfer memory 244 bytes I/244 bytes O
2. Interface
Functionality
 DP Master Yes
 DP Slave Yes
– Status/Modify;
Program; Routing
Yes, can be activated
 Direct data exchange Yes
 PtP Connection No
 Default setting None
 Galvanically isolated Yes
Number of connections max. 16
– Of these, the
following are
reserved:
1 PD connection
1 OP connection
DP Master
 Services
– PD/OP
communication
Yes
– Equidistance Yes
– SYNC/FREEZE Yes
– Activation/deactivat
ion of DP slaves
Yes
 Transmission rates Up to 12 Mbps
 Number of DP slaves max. 125
 Address area max. 8 KB I/8 KB O
 User data per DP slave max. 244 bytes I and
244 bytes O
DP Slave
 Services
– Status/Modify;
Program;
Routing
 GSD file
 Transmission speed
 Transfer memory
Yes, can be activated
siem807f.gsg
Up to 12 Mbps
244 bytes I/244 bytes O
Dimensions
Assembly dimension
BHT (mm)
160125130
Weight Approx. 0.93 kg
Programming
Programming language STEP 7
Stored instructions See Instruction List
Nesting levels 16
System functions (SFCs) See Instruction List
System function blocks
(SFBs)
See Instruction List
User program security Password protection
Voltages, Currents
Power supply 24V DC
 Permissible range 20.4 V to 28.8 V
Current consumption (idle) typical 1.2 A
Inrush current typical 8A
l
2
t 0.4 A
2
s
External fusing for supply
lines (recommendation)
Circuit breaker; 2 A,
Type B or C
PD supply at MPI (15 to
30V DC)
max. 200 mA
Power losses typical 12 W
Battery Yes
 Backup margin at 25
C and continuous CPU
buffering
min. 1 year
 Battery shelf life at
25C
approx. 5 years
Accumulator Yes
 Clock back-up period
– at 0 to 25C Approx. 4 weeks
– at 40 C Approx. 3 weeks
– at 60  C Approx. 1 week
 Battery charging time Approx. 1 hour

Siemens CPU 312 IFM Specifications

General

Brand	Siemens
Model	CPU 312 IFM
Category	Controller
Language	English