OB735 Smart Energy Meter
Three phase CT operated metering - 7 DIN modules, Standard DIN rail Format (DIN43880)
High Accuracy - IEC62053-21/22 Class 1.0, 0.5S
Industrial control & AMR compatible
Large clear backlit display
Benefits and Main Features
> Three phase metering
> Standard DIN rail Format (DIN43880)
> CL.1 Accuracy (EN50470)
> Energy consumption LED
> Isolated pulse output and IR (DIN43864)
> LCD display, 6 integer 1 decimal
> Large clear backlight display
> Internal transformer
> Transformer metering 1.5(6)A
> 27 CT rates can be selected
> Optional single-phase model
> Smart communication port, RS485 & M-bus versions available
> Can be set through front panel or via communications
> Memory back-up (EEprom)
> 7 DIN modules
> CE approval
| Model | OB735 CT Operated Modbus Meter |
|---|---|
| Manufacturer | Owen Brothers |
| In Depth | Modbus is a serial communications protocol originally published by Modicon (now Schneider Electric) in 1979 for use with its programmable logic controllers (PLCs). Simple and robust, it has since become a de facto standard communication protocol, and it is now a commonly available means of connecting industrial electronic devices. Modbus enables communication among many (approximately 240) devices connected to the same network, for example a system that measures temperature and humidity and communicates the results to a computer. Modbus is often used to connect a supervisory computer with a remote terminal unit (RTU) in supervisory control and data acquisition (SCADA) systems. Many of the data types are named from its use in driving relays: a single-bit physical output is called a coil, and a single-bit physical input is called a discrete input or a contact. Each device intended to communicate using Modbus is given a unique address. In serial and MB+ networks, only the node assigned as the Master may initiate a command. On Ethernet, any device can send out a Modbus command, although usually only one master device does so. A Modbus command contains the Modbus address of the device it is intended for. Only the intended device will act on the command, even though other devices might receive it (an exception is specific broadcastable commands sent to node 0 which are acted on but not acknowledged). All Modbus commands contain checksum information, to ensure a command arrives undamaged. The basic Modbus commands can instruct an RTU to change a value in one of its registers, control or read an I/O port, as well as command the device to send back one or more values contained in its registers. |
| Length | 12 |
| Height | 7 |
| Bredth | 15 |
| HS Tariff Code | HS8536901000 |
| Packing Buffer (in percentage) | 10 |
| Packing Type | Individual |
