Infrastructure/Communication Networks/RS-485
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Some workplace installation of the GridLab have a local RS-485 network. This type of network is mainly used to communicate between several devices of the same type and ends usually with a RS-485 to TCP/IP gateway or something like that. | Some workplace installation of the GridLab have a local RS-485 network. This type of network is mainly used to communicate between several devices of the same type and ends usually with a RS-485 to TCP/IP gateway or something like that. | ||
| + | |||
| + | == Usage within the district units == | ||
| + | The power meters [[Hardware/Siemens SICAM P50|SICAM P50]], which are a part of the [[Low Voltage GridLab/District Unit/Measurement|District Units]], uses such a RS-485 network. The communication between a master device and the power meters happens over a [[Hardware/Exsys_EX-6051|Exsys EX-6051]] RS-485 to TCP/IP gateway. The configuration of that gateway may be found in the device description of the [[Hardware/Exsys_EX-6051|Exsys EX-6051]] and the [[Infrastructure/Communication Networks/Local Area Network/Internet Protocol/Address List|IP address list]]. | ||
| + | |||
| + | ==== Protocol ==== | ||
| + | The used protocol is [http://en.wikipedia.org/wiki/Modbus Modbus] RTU. The protocol parameters are listed below. | ||
| + | {|class=wikitable | ||
| + | ! Paramter !! Value | ||
| + | |- | ||
| + | | Protocol || Modbus RTU | ||
| + | |- | ||
| + | | Baudrate || 115200Bd/s | ||
| + | |- | ||
| + | | Parity || None | ||
| + | |- | ||
| + | | Flow Control || None | ||
| + | |- | ||
| + | |} | ||
| + | |||
| + | ==== Addressing ==== | ||
| + | The addressing of the power meters consists of two digits. The tens indicates the [[Low Voltage GridLab/District Unit/Measurement|District Unit]] of the power meter and the units the power meter within the [[Low Voltage GridLab/District Unit/Measurement|District Unit]]. So for example the address of the the power meter 4 of the [[Low Voltage GridLab/District Unit/Measurement|District Unit]] 2 is 24. | ||
| + | |||
| + | ==== Hardware ==== | ||
| + | Description of the connecting cable | ||
| + | |||
| + | |||
[[Category:Infrastructure]] | [[Category:Infrastructure]] | ||
[[Category:Communication Networks]] | [[Category:Communication Networks]] | ||
Revision as of 13:17, 29 August 2014
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Some workplace installation of the GridLab have a local RS-485 network. This type of network is mainly used to communicate between several devices of the same type and ends usually with a RS-485 to TCP/IP gateway or something like that.
Usage within the district units
The power meters SICAM P50, which are a part of the District Units, uses such a RS-485 network. The communication between a master device and the power meters happens over a Exsys EX-6051 RS-485 to TCP/IP gateway. The configuration of that gateway may be found in the device description of the Exsys EX-6051 and the IP address list.
Protocol
The used protocol is Modbus RTU. The protocol parameters are listed below.
| Paramter | Value |
|---|---|
| Protocol | Modbus RTU |
| Baudrate | 115200Bd/s |
| Parity | None |
| Flow Control | None |
Addressing
The addressing of the power meters consists of two digits. The tens indicates the District Unit of the power meter and the units the power meter within the District Unit. So for example the address of the the power meter 4 of the District Unit 2 is 24.
Hardware
Description of the connecting cable
