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Siemens SIPLUS S7-200 EM221 - Temperature Extremes Module

Siemens SIPLUS S7-200 EM221 digital input module for extreme temperatures.

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ManufacturerSiemens

Part number6AG1221-1BF22-2XB0

Type SIPLUS S7-200 EM221

Based on 6ES7221-1BF22-0XA0

Operating Temp -25 to +70°C

Conformal Coating Yes

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12-month warranty

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Extended operating temperature range (-25°C to +70°C) Conformal coating for environmental resistance 8 x 24V DC digital inputs Designed for Siemens S7-200 PLC Robust SIPLUS design

Product description

The Siemens SIPLUS S7-200 EM221 (6AG1221-1BF22-2XB0) is an expansion module designed for the S7-200 programmable logic controller. This enhanced version is built upon the 6ES7221-1BF22-0XA0 and is specifically rated for extreme temperature conditions, operating reliably from -25°C to +70°C. It features conformal coating for added protection against environmental factors, making it suitable for challenging industrial settings.

This module is ideal for applications requiring I/O expansion in environments with significant temperature fluctuations or high humidity, such as in outdoor control cabinets, refrigeration units, or process industries. Its rugged design ensures consistent performance where standard modules might fail.

Stanlo Automation, a veteran-owned surplus parts distributor, provides the Siemens SIPLUS S7-200 EM221 module. Equip your S7-200 systems with reliable, high-performance components designed for demanding operational conditions.

Technical specifications

Type	SIPLUS S7-200 EM221
Based on	6ES7221-1BF22-0XA0
Operating Temp	-25 to +70°C
Conformal Coating	Yes
Digital Inputs	8 DI 24V DC
Isolation	Input to logic

Common applications

Outdoor control panels

Refrigeration systems

Food processing plants

Harsh industrial environments

Automation in extreme climates

Compatible systems

Siemens S7-200 PLC systems Various S7-200 CPU models

Also known as

SIPLUS S7-200 DI module Siemens 8 DI module -25C to 70C 6ES7221-1BF22-0XA0 extreme temp

Replaces / compatible with

This module replaces the standard 6ES7221-1BF22-0XA0 in applications exposed to extreme temperatures or corrosive environments. It is compatible with the Siemens S7-200 PLC family.

Technical note

Expert tip

Verify compatibility with your specific S7-200 CPU firmware version before installation, especially if using advanced S7-200 system features.

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Frequently asked questions

What specific environmental advantages does the Siemens 6AG1221-1BF22-2XB0 offer over a standard EM221 module?

The SIPLUS 6AG1221-1BF22-2XB0 offers a significantly wider operating temperature range, from -25°C to +70°C, compared to standard modules. Additionally, it includes conformal coating to protect against moisture, dust, and chemical contaminants, ensuring reliability in harsh conditions.