Siemens 3RK1207-3CE00-2AA2 AS-Interface SlimLine Compact SC22.5 4AI RTD Module

Conspectus

SIEMENS AS-Interface SlimLine Compact

3RK1207-3CE00-2AA2 AS-Interface SlimLine Compact SC22.5 4AI RTD Module

Legi quattuor signa resistentiae aut RTD per terminalia vitrea et transmite valores mensuratos per AS-Interface in modulo latitudinis 22.5 mm.

Ad Primum Aspectum

Nota	Siemens
Modellum	3RK1207-3CE00-2AA2
Typus Producti	Modulus Ingressus Analogicus
Functio principalis	Acquire resistance and temperature measurements
Applicatio	AS-i control-cabinet networks

RTD and resistance ranges

Pt100, Ni100 and resistance measurements use selectable conversion ranges.

Screw-terminal wiring

Four-wire measurement terminals also accommodate simulated two- and three-wire connections.

Selectable active channels

DIP switches deactivate unused channels to improve the analog transmission time.

Product Overview

3RK1207-3CE00-2AA2 connects resistance thermometers and resistive sensors to an AS-Interface network using four analog inputs. The SlimLine Compact SC22.5 enclosure uses screw terminals and a standard-address AS-i slave interface.

Selectable 50 or 60 Hz filtering and switchable measured-value smoothing allow the analog acquisition to be adapted to the installation, while front LEDs indicate communication and fault status.

Focus ordinandi: Select the correct RTD characteristic and wire arrangement, and deactivate unused input channels with the device de-energized.

Key Functions

Mensurare temperaturas RTD et resistentias

Modulus convertit signa Pt100, Ni100 et 0 ad 600 Ω in valores analogicos cyclicos pro magistro AS-i.

Adaptare rejectionem rumoris et lenitionem

Bitus parametrorum seligunt suppressionem interference 50 vel 60 Hz et activant filtrum digitalis lenitionis primi ordinis.

Minuere traficum canalium non usitatorum

AI0 manet activus, dum interruptores DIP possunt deactivare AI1 per AI3 cum pauciores mensurationes requiruntur.

Official Specifications

Canali Analogici Input	4, cum AI0 permanenter activo
Profilus Servi AS-i	7.3.E; servus ad adressam normalem
Resolutio Mensurae	15 bits plus sign
Intervalum normale Pt100	−200 usque ad +850 °C
Pt100 Climaticus Intervallum	−120 usque ad +130 °C
Ni100 Temperatura Intervallum	−60 usque ad +250 °C
Resistentia Mensurandi Intervallum	0 ad 600 Ω
Conexio de Masurare	Fluctuans, 4-filarius; 2- et 3-filarius simulatus per 4-filarios terminales
Resistentia input	2 MΩ
Mensura Curretis	1.667 mA
Maxima Tensio Ingressus ad Terram	±10 V limitis destructionis
Maximalis Differentialis Inputus Tensio	±20 V limitis destructionis
Selectio Suppressionis Interferentiae	50 Hz aut 60 Hz
Constantia Temporalis Lenitionis	unus modulus lectionis sine lenitione; octo cycli cum lenitione
Canis Custos Communicationis	Indicatio defectus post plus quam 50 ms absente telegrammate datorum dominantis
Coniunctio terminalis	Fistulae fixationis
Altiore Latitudo	22,5 mm
Gradus praesidium	IP20

Fons officialis: Siemens product manual and technical specifications

Quaestiones Frequenter Rogatae

Utrum sensorem Pt100 et sensorem Ni100 simul coniungere possim ad 3RK1207-3CE00-2AA2?

Modulus modos mensurae Pt100 et Ni100 sub praescripta parametrorum positione sustinet.

Utrum 3RK1207-3CE00-2AA2 supportat connexionem per terminales vitarum ad apparatus mobiles?

The Pt100 climatic range covers −120 to +130 °C with a measured-value increment of 0.01 °C.

Does 3RK1207-3CE00-2AA2 require an auxiliary power connection for RTD measurement?

No, the resistance and thermal-resistance module is supplied through AS-i without an auxiliary supply.

How can I shorten the analog transfer time when using only one sensor on 3RK1207-3CE00-2AA2?

Deactivate unused AI1 through AI3 with the DIP switches while the module is de-energized.

Can I turn off every input channel of 3RK1207-3CE00-2AA2?

No, analog input AI0 always remains active.

How should I choose the noise filter for 3RK1207-3CE00-2AA2?

Set the interference suppression parameter to the installation line frequency of either 50 or 60 Hz.

Why does the red FAULT LED remain on when 3RK1207-3CE00-2AA2 loses master communication?

The communication watchdog sets the I/O fault bit when no master data telegram is received for more than 50 ms.

Compatibility & Ordering Notes

Before ordering 3RK1207-3CE00-2AA2: Choose the screw-terminal RTD variant and reserve a standard AS-i slave address, then match the sensor range and simulated two-, three- or four-wire connection.

Compatibility Checklist for 3RK1207-3CE00-2AA2

• Use the Pt100 or Ni100 characteristic appropriate to the connected sensors.
• Change active-channel DIP switches only while de-energized.
• Keep unused connection terminals unassigned after disabling their channels.
• Protect the IP20 module from conductive contamination inside a suitable cabinet.

Hot Selling Models