Siemens P technical specifications 101, Hart communication

© Siemens AG 2008

SITRANS P measuring instruments for pressure

Transmitters for gage, absolute and differential pressure, flow and level

DS III series for absolute pressure (from differential pressure series)

HART communication
HART communication	230 ... 1100 Ω
Protocol	HART Version 5.x
Software for computer	SIMATIC PDM
PROFIBUS PA communication
Simultaneous communication with	4
master class 2 (max.)
The address can be set using	Configuration tool or local opera-
	tion (standard setting address
	126)
Cyclic data usage

Communication FOUNDATION Fieldbus
Function blocks	3 function blocks analog input,
	1 function block PID
• Analog input
- Adaptation to customer-specif-	Yes, linearly rising or falling char-	2
ic process variables	acteristic

-Electrical damping T63 , adjust- 0 ... 100 s able

- Simulation function	Output/input (can be locked within
	the device with a bridge)
- Failure mode	Can be parameterized (last good
	value, substitute value, incorrect
	value)

• Output byte	5 (one measuring value) or
	10 (two measuring values)
• Input byte	0, 1, or 2 (register operating mode
	and reset function for metering)
Internal preprocessing
Device profile	PROFIBUS PA Profile for Process
	Control Devices Version 3.0,
	Class B

- Limit monitoring	Yes, one upper and lower warning
	limit and one alarm limit respec-
	tively
- Square-rooted characteristic	Yes
for flow measurement
• PID	Standard FF function block
• Physical block	1 Resource block

Function blocks	2
• Analog input
- Adaptation to customer-specif-	Yes, linearly rising or falling char-
ic process variables	acteristic

-Electrical damping T63 , adjust- 0 ... 100 s able

- Simulation function	Input /Output
- Failure mode	Can be parameterized (last good
	value, substitute value, incorrect
	value)
- Limit monitoring	Yes, one upper and lower warning
	limit and one alarm limit respec-
	tively

Transducer blocks	1 transducer block Pressure with
	calibration, 1 transducer block
	LCD
• Pressure transducer block
- Can be calibrated by applying	Yes
two pressures
- Monitoring of sensor limits	Yes
- Simulation function: Measured	Constant value or over parameter-
pressure value, sensor temper-	izable ramp function
ature and electronics tempera-
ture

• Register (totalizer)	Can be reset, preset, optional
	direction of counting, simulation
	function of register output
- Failure mode	Can be parameterized (summation
	with last good value, continuous
	summation, summation with incor-
	rect value)
- Limit monitoring	One upper and lower warning limit
	and one alarm limit respectively
• Physical block	1
Transducer blocks	2
• Pressure transducer block
- Can be calibrated by applying	Yes
two pressures
- Monitoring of sensor limits	Yes
- Specification of a container	Max. 30 nodes
characteristic with
- Square-rooted characteristic	Yes
for flow measurement
- Gradual volume suppression	Parameterizable
and implementation point of
square-root extraction

- Simulation function for mea- sured pressure value and sen- sor temperature

Constant value or over parameter- izable ramp function

Siemens FI 01 · 2009

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