 |
Conitel 2020 ISO/OSI Model
Supported Information Types
Protocol Features
Implemented Protocol Stacks
Applicable Products
References
The Conitel 2020 protocol was developed by Leeds&Northrup for communication between a SCADA system and RTUs
of the same vendor.
Physical layer encoding is based on 32-bit words.
Conitel 2020 operates in half-duplex mode following the master/slave principle.
A master can communicate with up to 15 RTUs, an RTU only responds to explicit
requests by the master.
ISO/OSI Model
| 7 |
Application Layer |
Conitel-2020 Application Layer | | 6 |
Presentation Layer |
n/a |
| 5 |
Session Layer |
n/a |
| 4 |
Transport Layer |
n/a |
| 3 |
Network Layer |
n/a |
| 2 |
Link Layer |
n/a |
| 1 |
Physical Layer |
PCM, 32 bit
RS232 (V.24) |
Supported Information Types
| Control Direction |
Double Command | | Regulating step command | | Setpoint [12 bit] | | Monitoring Direction |
Single indication [1 Bit] | | Measured value [12 bit] | | Counter value [12 bit] | | Counter value [24 bit] |
Protocol Features
| Physical Layer |
PCM, half-duplex, 32 bit data words
|
| Application Layer |
on-demand transmission of analog and counter values
on-demand transmission of single point indications with change detection
"Select before operate" transmission of commands and indications
|
| Address Space |
RTU addresses 1..15
up to 16 groups with up to 16 12-bit-words each
|
Implemented Protocol Stacks
Applicable Products
 | ipConvLite | inexpensive protocol converter for standardized application
start price 1.800,- €
Details...
|  |
 | ipConvOPC | Softwarepackage for conversion between OPC DA 3.0 Server and standard protocols
Details...
|
 | ipConvPS | Universal protocol converter with integrated Profibus-DP, Slave interface
Details...
|
| ipConvPM | Universal protocol converter with integrated Profibus-DP, Master interface
Details...
|
 | ipConv | Universal protocol converter for highest degree of flexibility
Details...
| |
References
 | Project CFE
Details...
| Mexico | ipConv | Conitel-2020, Slave / DNP V3.00, Slave / DNP V3.00, Master / Harris-5000/6000, Slave / Recon, Slave / Indactic 33/41, 2033, Slave / Fuji, Slave / XMAT, Master / |
|
|