Siemens SIMATIC S7-400H - Communication; Communication Services; Overview of Communication Services

S7-400H
System Manual, 03/2012, A5E00267695-11
213
Communication
14
14.1 Communication services
14.1.1 Overview of communication services
Overview
Table 14- 1 Communication services of the CPUs
Communication service Functionality Allocation of S7
connection resources
via MPI via DP via
PN/IE
PG communication Commissioning, testing, diagnostics Yes Yes Yes Yes
OP communication Operator control and monitoring Yes Yes Yes Yes
S7 communication Data exchange via configured
connections
Yes Yes Yes Yes
Routing of PG functions e.g. testing, diagnostics beyond
network boundaries
Yes Yes Yes Yes
PROFIBUS DP Data exchange between master
and slave
No No Yes No
PROFINET IO Data exchange between I/O
controllers and I/O devices
No No No Yes
SNMP
(Simple Network
Management Protocol)
Standard protocol for network
diagnostics and parameterization
No No No Yes
Open communication over
TCP/IP
Data exchange over Industrial
Ethernet with TCP/IP protocol (with
loadable FBs)
Yes No No Yes
Open communication over
ISO on TCP
Data exchange over Industrial
Ethernet with ISO on TCP protocol
(with loadable FBs)
Yes No No Yes
Open communication over
UDP
Data exchange over Industrial
Ethernet with UDP protocol (with
loadable FBs)
Yes No No Yes
Data set routing for example, parameter assignment
and diagnostics of field devices on
PROFIBUS DP with PDM.
Yes Yes Yes Yes