The 6ES7221-1BF10-0XA0: It is designed exclusively for S7-21X CPUs, so verify your CPU model before specifying. Because production has stopped, sourcing this module goes through surplus or broker channels.
Siemens 6ES7221-1BF10-0XA0 EM 221 DI, Discontinued
MPN6ES7221-1BF10-0XA0
Siemens SIMATIC S7-200 EM 221 digital input module, 8 DI 24V DC optically isolated, order code 6ES7221-1BF10-0XA0, discontinued product.
$89.15Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Weight | 0.07 kgs |
Product details
Frequently asked questions
What are the key specifications of this module?
It provides 8 digital inputs, 24V DC, optically isolated, for the S7-200 series (S7-21X CPUs only).
Can this module be used with the S7-200 CPU 6ES7212-1FA01-0XB0?
Yes, it is compatible with S7-21X CPUs such as the 6ES7212-1FA01-0XB0. It expands the input count by 8 optically isolated channels.
MPN
6ES7221-1BF10-0XA0