Siemens SIMATICS PCS7 사용자 설명서

DNP3 telecontrol protocol

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

G_PCS7_XX_00267

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 S7-400H

RTU S7-400