User's Manual

DNP3 telecontrol protocol20
DNP3 telecontrol protocol
Widely distributed outstations (RTUs) can be controlled and
monitored with the DNP3 telecontrol protocol via serial or
Ethernet TCP/IP communication links by means of the tele-
control center in SIMATIC PCS 7. The control center integrated
with SIMATIC PCS 7 TeleControl into the operator system of
the process control system is the master during telecontrol
communication.
The slaves are represented by the outstations. SIMATIC
S7-300/S7-300F and S7-400/S7-400F/S7-400H/S7-400FH
controllers as well as third-party RTUs can be used as out-
stations.
Further hardware and software components round off the
range of products:
• TIM communication modules
•TCP/IP converters – serial and MD modem modules
•GSM/GPRS components
• TCP/IP routers and switches
• SCALANCE S612 and S613 security modules
• Dedicated-line accessories
•Cables
• Engineering package for configuration of DNP3 data
objects, stations, networks and connections as well as
for diagnostics
In order to implement the telecontrol networks, the basic
topologies of point-to-point, multi-point, star and ring can be
configured using classic or also TCP/IP-based media, and com-
bined flexibly independent of the infrastructural conditions.
DNP3 - example of classic dedicated network (star + multi-point topologies)
Classic WAN media
• Dedicated line via modem, e.g. SINAUT MD2
• Private wireless networks
• Analog telephone network
• Digital ISDN network
• Mobile radio network GSM
RS 485
MD2 MD2
· · ·
· · ·
MD2
G_PCS7_XX_00267
MD2
MD2
MD2
Ethernet
MD2
Control center
SIMATIC PCS 7 TeleControl
DNP3 master
Dedicated network
with star topology
Range without repeaters (example)
with conductor cross-section 0.8 mm
- 1 200 bit/s max. 33 km
- 2 400 bit/s max. 27 km
- 19 200 bit/s max. 11 km
Star +
multi-point
TIM 3V-IE
DNP3 (slave)
TIM 3V-IE
DNP3 (slave)
TCP/IP to serial
converter
TIM 4R-IE
DNP3 (slave)
TIM 4R-IE
DNP3 (slave)
RTU S7-300
RTU S7-300
RTU S7-400H RTU S7-400
© Siemens AG 2011