Magnetrol 2xx Spécifications télécharger pdf (Page 5)

57-649 Jupiter Magnetostrictive Transmitter - FOUNDATION fieldbus™

Details regarding cable specifications, grounding, termination,

and other network information can be found in IEC 61158

or the wiring installation application guide AG-140 at

www.fieldbus.org.

1.2 Benefits

The benefits of F

OUNDATION fieldbus

™

can be found

throughout all phases of an installation:

1. Design/Installation: Connecting multiple devices to a single

pair of wires means less wire and fewer I/O equipment.

Initial Engineering costs are also reduced because the

Fieldbus Foundation requires interoperability, defined as

“the ability to operate multiple devices in the same system,

regardless of manufacturer, without a loss of functionality.”

All F

OUNDATION fieldbus

™

devices must be tested for

interoperability by the Fieldbus Foundation. Orion

Instruments Jupiter device registration can be found at

www.fieldbus.org. Choose Magnetrol as the device manu-

facturer when searching for the registration.

2. Operation: With control now taking place within the

devices in the field, better loop performance and control are

the result. A F

OUNDATION fieldbus

™

system allows for mul-

tiple variables to be brought back from each device to the

control room for additional trending and reporting.

3. Maintenance: The self-diagnostics residing in the smart

field devices minimizes the need to send maintenance

personnel to the field.

1.3 Device Configuration

Device Descriptions

The function of a F

OUNDATION fieldbus

™

device is deter-

mined by the arrangement of a system of blocks defined by

the Fieldbus Foundation. The types of blocks used in a typi-

cal User Application are described as follows:

Resource Block describes the characteristics of the

OUNDATION fieldbus

™

device such as the device name,

manufacturer, and serial number.

Function Blocks are built into the F

OUNDATION fieldbus

™

devices as needed to provide the desired control system

behavior. The input and output parameters of function

blocks can be linked over the Fieldbus. There can be

numerous function blocks in a single User Application.

Transducer Blocks contain information such as calibration

parameters and sensor type. They are used to connect the

sensor to the input function blocks.

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