Siemens SIMATIC S7 User Guide

SIMATIC Automation Tool overview
1.2 Network access
SIMATIC Automation Tool V2.1 user guide
Manual, V2.1.1 07/2016, A5E33042676-AC
13
1.2
Network access
Communicating with Siemens devices
PROFINET devices connected directly to a network are discovered by using the MAC
(Media Access Control) address. A MAC address is unique to each device, cannot be
changed, and is printed on the device. Connected PROFINET devices are discovered
whether they are configured with an IP, subnet, and gateway address, or not configured
(addresses are 0.0.0.0).
However, a directly connected CPU must have a valid IP address, before communication
modules, signal modules, and decentralized I/O that are located behind the CPU become
visible in the SIMATIC Automation Tool device table.
For example, an S7-1500 CPU has a PROFINET network connection to the SIMATIC
Automation Tool and uses a local CP card to connect with another PROFINET network
where decentralized I/O are connected. You must assign a valid IP address to the S7-1500
CPU before the decentralized I/O network is visible in the SIMATIC Automation Tool device
table.
The type of network access you have depends on the command that you execute, as shown
in the following table.
SIMATIC Automation Tool
command
Device
address
used
Must provide CPU
password for a pro-
tected CPU
PG/PC and device connectivity
Scan (discover CPUs and I/O de-
vices)
MAC No
•
Local network
: You can access devices
through Ethernet switches, but cannot access
devices on another network through an IP ad-
dress router.
•
VPN
(Virtual Private Network) connection to a
local network
Flash LEDs on devices
MAC
No
Set IP address, subnet mask, and
gateway address on devices
MAC No
Set PROFINET name on devices
MAC
No
Reset devices to factory default
values
(for PROFINET I/O devices only)
MAC -
Set CPU time to PG/PC time
IP
Yes
•
Local network
: You can access devices
through Ethernet switches.
•
Remote network
: You can access devices on
another network through an IP address router.
•
VPN
connection to local network
Download program to CPUs
IP
Yes
Download new firmware to CPUs
and I/O devices
IP Yes
Put CPUs in RUN or STOP
IP
Yes
Set CPU time to PG/PC time
IP
Yes
Reset CPU memory
IP
Yes
Read CPU Diagnostic buffer
IP
Yes
Upload service data from CPUs
IP
Yes
Backup/restore CPU data
IP
Yes
Reset devices to factory default
values
(for CPU devices only)
IP Yes

Siemens SIMATIC S7 Specifications

General

Brand	Siemens
Model	SIMATIC S7
Category	Controller
Language	English