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PRODUCT DETAILSSIEMENS

ARTICLE NUMBER

6ES7231-7PB22-0XA8

SIMATIC S7-200 CN RTD Input Module

Two-channel analog input expansion for precise RTD and resistance measurement in compact S7-200 CN automation systems.

WARRANTYOne year

AVAILABILITYIn stock

TEL+86 17359287459

EMAILsales9@apterpower.com

DIAGNOSTICS, PROTECTION & INSTALLATION

Analog inputs2 AI	MeasurementRTD / resistance	Pt sensorsPt100 to Pt10000	Ni sensorsNi100 / 120 / 1000
Cu sensorCu10	Resistance ranges150 / 300 / 600 ohm	Resolution15 bit + sign	Power loss1.8 W

DIAGNOSTICS & PROTECTION

Use the CPU diagnostic buffer and application limits to detect implausible values.
Verify sensor type and measuring range before energizing the channel.
Separate low-level RTD wiring from switching and motor conductors.
Retain the complete article number when sourcing a lifecycle replacement.

INSTALLATION & UPGRADES

Designed only for SIMATIC S7-22X CPU expansion systems.
Configure the EM 231 channel type and range in STEP 7-Micro/WIN.
Use shielded sensor wiring and preserve the documented conductor routing.
Validate both channels after replacement with known reference values.

BRAND CHARACTERISTICS & APPLICATION FIELDS

BRAND CHARACTERISTICS	APPLICATION FIELDS
◆ Siemens order coding identifies the exact S7-200 CN sensor and range variant.	◆ Temperature measurement with platinum, nickel or copper resistance sensors.
◆ Compact expansion architecture supports space-conscious control panels.	◆ Machine utilities and compact process skids using S7-200 controllers.
◆ Official engineering data defines supported RTD and resistance characteristics.	◆ Retrofit support for installed S7-22X automation systems.
◆ Lifecycle replacement is simplified when order code and configuration are retained.	◆ Maintenance replacement where the original measurement range must be preserved.

RECOMMENDED MODELS · SIEMENS

6ES7321-1BL00-0AA0	6ES7322-1BH01-0AA0	6ES7132-6BF00-0CA0	6ES7122-1BB10-0AA0
6ES7288-2DR16-0AA0	6ES7222-1HF22-0XA8	6ES7131-6BH00-0BA0	6ES7422-1HH00-0AA0
6ES7231-7PB22-0XA8	6ES7221-1BH22-0XA0	6ES7142-4BF00-0AA0	6ES7132-6BD20-0BA0
6ES7132-4BD32-0AA0	6ES7952-0KH00-0AA0	6ES7421-1FH20-0AA0	6ES7953-8LF00-0AA0
6ES7131-4BF00-0AA0	6ES7972-0BA60-0XA0	6ES7193-4CB20-0AA0	6ES7400-2JA10-0AA0

RECOMMENDED MODELS · WEIDMÜLLER

UR20-FBC-PN-IRT-V2	UR20-16DI-P	UR20-16DO-P	UR20-4AI-UI-16
UR20-4AO-UI-16	UR20-8DI-P-3W	UR20-8DO-P	UR20-4AI-RTD-DIAG
UR20-2AI-SG-24-DIAG	UR20-PF-I	UR20-PF-O	UR20-PF-O-2DI-DELAY
UR20-1COM-232-485-422	UR20-1CNT-100	UR20-2FCNT-100	UR20-4RO-CO-255
UR20-8DI-P-2W-HD	UR20-16DO-P-PLC-INT	UR20-4AI-UI-DIAG	UR20-2AO-UI-16

QUOTE & SERVICE

01 IDENTIFYConfirm the complete article number.

02 VERIFYCheck revision and condition.

03 QUOTERequest price and availability.

04 DISPATCHPack and arrange shipment.

Tel: +86 17359287459 Email: sales9@apterpower.com

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Siemens S7-200 Datasheet Module

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