Siemens SIMATIC S7-400 Manual page 166

Technical specifications
10.1 Technical Specification of the CPU 414-3 PN/DP; (6ES7414-3EM05-0AB0)
PROFIBUS proxy functionality
Type of interface
Properties
isolated
Power supply to interface 24 V rated voltage (15
to 30 V DC)
Number of connection resources
10-10
Data length of all HMI
•
variables, max.
supported
•
Number of coupled
•
PROFIBUS devices
Data length per connection,
•
max.
MPI
•
PROFIBUS DP
•
Services
•
PG/OP communication
–
Routing
–
Global data communication
–
S7 basic communication
–
S7 communication
–
Time synchronization
–
Transmission rates
•
Services
•
PG/OP communication
–
Routing
–
S7 basic communication
–
S7 communication
–
Constant Bus Cycle Time
–
SYNC/FREEZE
–
Enable/disable DP slaves
–
Time synchronization
–
Transmission rates
•
Number of DP slaves
•
Address area
•
CPU and firmware version
32000 bytes
Yes
32
128 bytes (slave dependent)
Interfaces
1st interface
Integrated
RS 485/PROFIBUS
Yes
Maximum 150 mA
MPI: 32
DP: 16
Functionality
Yes
DP master/DP slave
1st interface MPI mode
Yes
Yes
Yes
Yes
Yes
Yes
Up to 12 Mbaud
1st interface DP master mode
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Up to 12 Mbaud
Max. 32
Max. 2 KB inputs / 2 KB outputs
S7-400 Automation System, CPU Specifications
Manual, 10/2006, 6ES7498-8AA04-8BA0