Siemens SIMATIC S7-1200

Communication
11.1 Asynchronous communication connections
S7-1200 Programmable controller
System Manual, V4.2, 09/2016, A5E02486680-AK
801
11.1
Asynchronous communication connections
Overview of communication services
The CPU supports the following communication services:
Communication ser-
vice
Functionality
Using PROFIBUS DP
Using
Ethernet
CM 1243-5
DP master
module
CM 1242-5
DP slave
module
PG communication Commissioning, testing, diagnos-
tics
Yes No Yes
HMI communication
Operator control and monitoring
Yes
No
Yes
S7 communication Data exchange using configured
connections
Yes No Yes
Routing of PG func-
tions
For example, testing and diagnos-
tics beyond network boundaries
No No No
PROFIBUS DP Data exchange between master
and slave
Yes Yes No
PROFINET IO Data exchange between I/O con-
trollers and I/O devices
No No Yes
Web server
Diagnostics
No
No
Yes
SNMP
1
(Simple Network Man-
agement Protocol)
Standard protocol for network
diagnostics and parameterization
No No Yes
S7 routing Using routing tables, communica-
tion partners can communicate
with each device even though the
devices are on different S7 sub-
nets.
No No Yes
Open communication
over TCP/IP
Data exchange over Industrial
Ethernet with TCP/IP protocol (with
loadable FBs)
No No Yes
Open communication
over ISO on TCP
Data exchange over Industrial
Ethernet with ISO on TCP protocol
(with loadable FBs)
No No Yes
Open communication
over UDP
Data exchange over Industrial
Ethernet with UDP protocol (with
loadable FBs)
No No Yes
1
The CPU supports SNMP V1 without TRAPs.