Transcript SD4 Ethernet - SSE South Africa

MDS SD4
TM
Secure, Long Range IP/Ethernet
August 2007
Product Presentation
Agenda
•
Product Positioning
•
Product Overview
•
Enhanced Benefits
•
Network Scenarios
•
SD4 and IP/Ethernet
•
Latest Firmware Features
GE MDS SD Series
Digital Radio Transceiver
Product Positioning
MDS SD4 – Market Demands
• Increased demand for Ethernet and TCP/IP technology to
facilitate the operation and maintenance of SCADA systems
• Users of radio communications in Utility SCADA are concerned
with an increasing “noise floor” and the potential for radio
interference in the unlicensed bands (ISM Band WiLAN)
• Regulatory changes require radio communications with greater
spectral efficiency and increased cyber security
MDS SD4 - Product Positioning
Secure, Long-Range IP/Ethernet communications for SCADA applications
•
Serial and Ethernet interfaces . . . Future-proof technology migration onto IP
networks
•
AES 128-bit encryption . . . For secure communications and regulatory compliance
•
Backwards Compatible . . . Seamless integration into existing MDS 4710/4790
systems
•
Store & Forward . . . Spectrum saving feature for repeater sites using Store & Forward
function.
•
Media Access Control . . . Enhanced collision avoidance technology using Media
Access Control (MAC) feature.
Product Overview
MDS SD4 – Features & Benefits
1.
Application Flexibility
•
Low-power consumption . . . Sleep mode reduces power usage by up to 50%
•
Long range wireless . . . Twice the receive sensitivity for more range and less cost of
infrastructure (-112 dBm @ 9600bps)
•
Serial and Ethernet interfaces . . . Future-proof technology migration onto IP networks
•
Backwards Compatible . . . Seamless integration into existing MDS 4710/4790 systems
•
Software defined . . . Single hardware platform configurable for 6.25, 12.5 kHz or 25 kHz
channels
2.
Industrially Hardened
•
3.
Rugged . . . Class 1, Div 2 for Hazardous Locations and IEEE 1613 for noise immunity
Reliable & Scalable
•
4.
Licensed Band Operation . . . For exclusive-use, non-shared operation in 400 MHz band
Secure
•
AES 128-bit encryption . . . For secure communications
Flexible Communications
Ethernet Port
• 10/100 BaseT
• Data and firmware load
• HTML Configuration
Power Port
• 10-30 VDC
COM1 Serial Port
• Dual Function
• Data or Management
• Local Configuration
COM2 Serial Port
• RS232 or RS485
• Serial-to-Serial
• IP-to-Serial
Antenna Port
• 12.5 kHz channel spacing (ICASA)
• AES-128 Encryption
• Remote Management
SD4 Operating Modes
•
•
•
•
Packet with MAC
•
Enhanced mode for Media Access Control and Store & Forward
functions.
•
Required for AES-encryption & Multi-Host feature
•
Over The Air (OTA) format is NOT compatible with 4710
Packet
•
Default mode for SD4-ES and SD4-SS Modules
•
Required for AES-encryption & Multi-Host feature
•
Over The Air (OTA) format is NOT compatible with 4710
Transparent
•
OTA format is compatible with 4710
•
Best choice for new SD4 features in mixed 4710 networks
•
Supports Data on COM1 and IP/Ethernet
x710
•
Mode for integration into legacy 4710 networks only
SD4 Duplex Repeater
• Full Duplex Radio Module for Master / Repeater
Installations
• Options for Redundancy on RF channel
• Comes fitted with factory tuned Duplexer
• IP-to-Serial – with integrated terminal server
• AES 128-bit encryption
• Menu System for ease of configuration
Confidential - Internal Use Only
Enhanced Benefits
Built-in Web Configuration Page
• Uses web based SD Device Manager for easy configuration of all SD Series
parameters including transmit and receive frequencies, channel size and
modem speed
• SD Device Manager is also used to access important performance and
maintenance information
• SD Series configuration and maintenance can also be performed using Telnet
and HyperTerminal sessions
Spectrum Saving Store & Forward
• Saves radio spectrum by re-using frequencies to repeat signals
• Extend Communication paths using single radio Store and Forward
• Used in Packet with MAC mode for radio network management and collision
avoidance
Host Computer
SD4 Store&Forward
• Single Freq. Repeater
Remote Device
Comprehensive Network Management
• Manage your SD network using PulseNET NMS
• PulseNET is purpose-built for industrial communications and includes
sophisticated and meaningful pre-built workflows along with intuitive graphical
representations of the network
• Access historical network and equipment performance trending to optimize
availability through predictive maintenance
• A comprehensive NMS system with drill-down capabilities from the network
layer to the device level.
Network Scenarios
Simple IP/Serial Application
SD4 with Repeater + Local RTU/PLC
SD4 at Remote Locations
• Serial + ETH & Encryption
GE MDS SD4
Remote
• Connects to RTU/PLC
GE MDS SD4
Remote
PLC/RT
U
SD4 installed at Master Site
• Serial + ETH & Encryption
• Connects to Host Computer
Repeater
Host Computer
• Connects to Host PLC
SD4 Duplex Repeater
• Serial + ETH for PLC Interface
MDS SD4 and IP/Ethernet
Optimized Communications
Frame/Packet/Message Structure
Ethernet and IP protocols add information to data payloads to allow
communications to occur in layers.
Industrial Protocols like Modbus TCP/IP works the same way
ping
Eth ICMP data
SNMP
Eth
IP
UDP SNMP data
FTP
Eth
IP
TCP FTP data
Modbus TCP/IP Eth
IP
TCP
20
20
18
data
MB hdr
8
data
10
(Size in bytes)
SCADA to RTU Communications
All SCADA protocols work with master-slave model
Modbus TCP
DNP3 over IP
Any serial polled protocol encapsulated over IP
PC Server
SCADA Software
RTU#1
RTU#1 Query
Virtual data transfer
TCP
Server
RTU#1 Query
TCP
Client
TCP
TCP
IP
IP
Eth
Eth
Actual data transfer
Modbus data is encapsulated within
TCP/IP/Ethernet frames/packets
Ethernet frame
Eth
IP
TCP RTU#1 Query
The RTU receives the Ethernet frame
and extracts the data before
processing it
Wireless Ethernet Bridges
A bridge transmits frames at the Ethernet layer level
Every wireless bridge works this way
PC Server
SCADA Software
RTU#1
RTU#1 Query
RTU#1 Query
Virtual data transfer
TCP
Client
TCP
TCP
IP
IP
Eth
Eth
W Eth
Ethernet frame
Eth
IP
TCP
Server
W Eth
Ethernet frame
TCP RTU#1 Query
Eth
Wireless Ethernet frame (80+ bytes)
W
Eth
IP
TCP RTU#1 Query
IP
TCP RTU#1 Query
MDS SD4 Optimized Communications
SD4 eliminates TCP/IP overhead
Works with:
Modbus TCP/IP
DNP3 over IP
Any serial polled protocol encapsulated over IP
PC Server
SCADA Software
RTU#1 Query
SD4
TCP
Client
192.168.1.101
192.168.1.201
TCP
Server
TCP
Client
TCP
Server
TCP
TCP
TCP
TCP
IP
IP
IP
IP
Eth
Eth
Eth
Eth
192.168.1.100
Wireless SD4 frame (20+
bytes)
RTU#1 Query
Ethernet frame
Eth
IP
RTU#1
SD4
TCP RTU#1 Query
TCP/IP/Ethernet headers are
removed by the sending SD4 radio
Eth
Wireless Ethernet frame (80+ bytes)
Eth
IP
IP
TCP RTU#1 Query
TCP/IP/Ethernet headers are regenerated by
the receiving SD4 radio. The RTU receives
exactly the same Modbus data as if it was
connected directly to PC Server
W Eth
W
192.168.1.200
Ethernet frame
Only the data portion is
transmitted over the air
W Eth
RTU#1 Query
TCP RTU#1 Query
SD4 and IP/Ethernet Data
• All IP connections terminate locally at the SD radio
• The transmitting SD extracts RTU data packet content and broadcasts it
over-the-air
• The receiving SD regenerates the TCP/UDP data packet
• Makes efficient use of the channel, but has limitations
• SD radios don’t route or bridge Ethernet data, it encapsulates industrial
protocols in IP payloads
Latest Firmware
Features
SD4 New Features
• New in the latest firmware revision for the SD series
radios (release 4.1.5)
– Extended Ethernet capability; supporting up to 3 simultaneous TCP/IP
Client/Server connections to hosts and devices and “ping” over the air to
remote devices.
– Extended Over The Air data speeds; now up to 19200bps on a simplex
12,5Khz channel. Double the previous rates.
– Added maintenance functions e.g. reprogram remotes over the air, modem
type, frequencies etc.
– Simultaneous use of COM1, COM2 and ETH ports for data, acting like a full
gateway for device connectivity.
– WEB interface for easy programming with setup wizards
– MAC network management with reduced overhead and guaranteed zero
collisions over the air.
– Store & Forward functionality for spectrum saving repeaters.
– Terminal Server feature for Eth to Serial Conversion.
– Full support for exception based protocols e.g. DNP3 & IEC 60870-5-101/104.