Siemens P technical specifications 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 gage and absolute pressure, with front-flush diaphragm

	HART communication
	HART communication	230 ... 1100 Ω
	Protocol	HART Version 5.x
	Software for computer	SIMATIC PDM
2
	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
	• 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
	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
	• 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-	Constant value or over parameter-
	sured pressure value and sen-	izable ramp function
	sor temperature

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-
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)
- 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
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

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Siemens FI 01 · 2009