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ALEOS 4.2.3 User Guide
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Supervisory Control and Data Acquisition (SCADA)
Supervisory Control and Data Acquisition (SCADA) describes solutions across a
large variety of industries and is used in industrial and engineering applications to
monitor and control distributed systems from a master location. SCADA
encompasses multiple RTUs, a central control room with a host computer (or
network), and some sort of communication infrastructure.
SCADA allows for “supervisory” control of remote devices as well as acquiring
data from the remote locations. Programmable Logic Controllers allow for a
higher degree of automated SCADA.
Programmable Logic Controller (PLC)
A Programmable Logic Controller (PLC) is a small industrial computer which
generally monitors several connected sensor inputs and controls attached
devices (motor starters, solenoids, pilot lights/displays, speed drives, valves, etc.)
according to a user-created program stored in its memory. Containing inputs and
outputs similar to an RTU, PLCs are frequently used for typical relay control,
sophisticated motion control, process control, Distributed Control System, and
complex networking.
Modbus TCP/IP
Modbus TCP/IP simply takes the Modbus instruction set and wraps TCP/IP
around it. Since TCP/IP is the communications standard for the Internet and most
networked computers, this provides a simpler installation. Modbus TCP/IP uses
standard Ethernet equipment.
Modbus on UDP
When Sierra Wireless AirLink devices are used in place of radios, one AirLink
device is connected to the central station (host) and one AirLink device is
connected to each remote unit. When the AirLink device is configured for Modbus
with UDP, the AirLink device connected to the host can store a list of IP addresses
or names with matching IDs. When the host at the central station sends serial
data as a poll request, the AirLink device at the host matches the RTU ID to a
corresponding IP of an AirLink device at a remote unit. A UDP packet is
assembled encapsulating the RTU ID and serial data transmitted from the host.
The UDP packet is then transmitted to the specific AirLink device at the remote
unit matching the RTU ID. The remote AirLink device then disassembles the
packet before transmitting the RTU ID and serial data to the remote unit. The
remote units operate in normal UDP mode, and their data is sent to the host via
the remote AirLink device and host AirLink device.
- ALEOS 4.2.3 Configuration 1
- User Guide 1
- Trademarks AirCard 4
- Contact 4
- Information 4
- Revision 5
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- Rev 2.3 Feb.12 8 8
- Rev 2.3 Feb.12 9 9
- ALEOS 4.2.3 User Guide 10
- 10 20080616 10
- Contents 11
- Rev 2.3 Feb.12 11 11
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- Rev 2.3 Feb.12 13 13
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- 1: Introduction 15
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- Tools and Reference Documents 17
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- Main Menu Tabs 20
- Configuring 20
- Operation Modes 20
- Telnet/SSH Mode 22
- Creating a Template 23
- Applying a Template 24
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- 3: Status 27
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- WAN/Cellular 29
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- Rev 2.3 Feb.12 31 31
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- Rev 2.3 Feb.12 33 33
- VPN connection has been made 33
- Security 34
- Services 35
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- Applications 38
- Rev 2.3 Feb.12 39 39
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- 4: WAN/Cellular Configuration 41
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- Keepalive 47
- Data Usage Using Keepalive 47
- Re-Activation 48
- 5: LAN Configuration 49
- DHCP/Addressing 50
- LAN Configuration 51
- Rev 2.3 Feb.12 51 51
- Internal DHCP Server 52
- Ethernet 53
- Virtual Ethernet 57
- Virtual Serial 59
- Host Port Routing 62
- Global DNS 63
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- 6: VPN Configuration 69
- Split Tunnel 70
- VPN Configuration 75
- Rev 2.3 Feb.12 75 75
- SSL Tunnel 76
- Rev 2.3 Feb.12 77 77
- L2TP+IPsec 78
- VPN 2 to VPN 5 82
- 7: Security Configuration 83
- Port Forwarding and DMZ 84
- Port Filtering - Inbound 86
- Port Filtering - Outbound 87
- Trusted IPs - Outbound 89
- MAC Filtering 90
- Packet Inspection 91
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- 8: Services Configuration 93
- ACEmanager 94
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- Configuring Engine Hours 98
- Dynamic DNS 99
- Third Party Services 100
- IP Manager 101
- Understanding Domain Names 102
- Dynamic Names 103
- Control Only 105
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- Gateway Only 107
- Control and Gateway 108
- Trusted Phone Number 111
- Telnet/SSH 112
- Email (SMTP) 113
- Management (SNMP) 114
- Services Configuration 115
- Rev 2.3 Feb.12 115 115
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- • SNMP is disabled 116
- • 65535 116
- Time (SNTP) 117
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- 9: GPS Configuration 119
- Remote Access Protocol (RAP) 120
- Before Configuring GPS 121
- Server 1 122
- Redundant Server 125
- Server 2 to Server 4 126
- Reliability Modes 127
- Local/Streaming 128
- Global Settings 130
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- Introduction 133
- Configuration Overview 135
- Action Description 137
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- Email/SMS 140
- Report Groups 141
- Configure Events 143
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- 11: Serial Configuration 145
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- MODBUS Address List 151
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- 12: Application Configuration 153
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- 13: I/O Configuration 161
- Pulse Count 162
- 14: Admin 163
- Advanced 164
- Radio Passthru 165
- A: Modbus/BSAP Configuration 169
- Modbus TCP/IP 170
- Modbus on UDP 170
- Host for Modbus on UDP 171
- Modbus with UDP 172
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- B: PPP over Ethernet (PPPoE) 175
- Figure B-10: PPPoE Connection 179
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- Figure B-14: PPPoE Connection 181
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- Protocol 183
- SYNTAX DisplayString 188
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- GPS Overview 205
- Configuring the Datum 208
- Over-The-Air (Remote) Host 208
- Local Host 209
- TCP GPS Report Polling 209
- Report Types 209
- Sending Reports Automatically 210
- Store and Forward 210
- RAP Configuration 212
- Device ID 213
- Odometer Data in Reports 213
- I/O Event Reports 214
- NMEA Configuration 215
- Streaming Messages (Local) 216
- TAIP Emulation Configuration 217
- Local Connection 218
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- E: AT Commands 221
- CDMA Info 223
- CPU Status 224
- ATS53=T192.168.100.23/12345 225
- ATS53=foo.earlink.com 225
- ATS53=192.168.100.23/12345 225
- ATS53=/12345 225
- Dynamic IP 232
- PPP/Ethernet 233
- PassThru 234
- Low Power 238
- Firewall 238
- Serial Port 244
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