Siemens SM 1221 Series PLC I/O Module for Use with SIMATIC S7-1200 Series, Digital

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RS Stock No.:
787-7945
Distrelec Article No.:
110-48-544
Mfr. Part No.:
6ES7221-1BH32-0XB0
Brand:
Siemens
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Brand

Siemens

Accessory Type

PLC I/O Module

Range

SIMATIC

Series

SM 1221

Input Type

Digital

Number of Inputs

16

For Use With

SIMATIC S7-1200 Series

Cable Length

300 (unshielded) m, 500 (shielded) m

Maximum Operating Temperature

+60°C

Dimensions

100 x 45 x 75 mm

COO (Country of Origin):
DE

Siemens PLC I/O Module, Digital Input Type, 16 Inputs - SIMATIC Series - 6ES7221-1BH32-0XB0


This PLC I/O module from Siemens is designed to increase the range of your SIMATIC S7-1200 programmable logic controller. Use it to build a modular CPU system that meets your specifications with no redundant equipment. It features 16 digital inputs, so you can adapt the controller as needed to various industrial automation, robotics or manufacturing tasks. For flexible operation, it can be connected with both sink and source configurations. Galvanic isolation between digital inputs (in groups of four) allows information transfer while preventing current leakage and protecting your equipment.

• Compact dimensions of 75 (L) x 45 (W) x 100mm (H) saves space on the control panel
• Operating temperature range of -40°C to +70°C for use in challenging environments
• DIN rail mounting enables easy installation

How do I know if this module is working properly?


For straightforward troubleshooting, LEDs on the front panel show input status at a glance. A built-in alarm provides quick notification in the event of a fault, and the system also supports messaging for diagnostic functions and monitoring the supply voltage.

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