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Siemens 6ES7223-1PL21-0XA0 is a Digital Input Output Expansion Module for the Simatic S7 product family.
From a maintenance perspective, a digital input module receives discrete on/off states from field contacts and devices, then makes those states available to the controller for monitoring, sequencing, alarms, and interlocks. Connection and configuration should follow the requirements of the platform.
Within an S7 installation, the exact hardware order number determines supported interfaces and configuration behavior. System and software compatibility should be checked before replacement. The original equipment schedule should guide compatibility review.
Country of origin is listed as United States of America.
When this product is used for lifecycle support, technicians should confirm the installed revision, connection arrangement, and system assignment rather than assuming interchangeability with a similarly named module. This is relevant where the installation calls for this specific component class.
SIEMENS SIMATIC S7-200 DIGITAL I/O EM 223, FOR S7-22X CPU ONLY, 16 DI 24 V DC, SINK/SOURCE 16 DO RELAY, 2A/POINT
Product was cancelled by Siemens 10.01.2014. Successor 6ES7223-1PL22-0XA0
Product was cancelled by Siemens 10.01.2014. Successor 6ES7223-1PL22-0XA0
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