CPU 1214 BC (6ES72141KF400XB0) — SIMATIC S7-1200 Compact Controller
In-catalog comparison (top peers by parametric similarity)
The table below presents 6ES72141KF400XB0 alongside up to three in-catalog alternatives. Similarity scores reflect parametric proximity only; they are not interchange endorsements. Any peer listed here requires the reader's own technical qualification before use in a specific control architecture.
| Specification | 6ES72141KF400XB0 (seed) | 6ES72151AG400XB0 | 6ES72111BE400XB0 | 6ES72110BA230XB0 |
|---|---|---|---|---|
| Series | SIMATIC | SIMATIC | SIMATIC | SIMATIC |
| Encapsulation | Box | Box | Box | Box |
| Expandable | Non-Expandable | Non-Expandable | Non-Expandable | Non-Expandable |
| Memory Size | 125KB | 125kB | 50KB | — |
| Digital Inputs | 4 | 14 | 6 | 6 |
| Digital Outputs | 4 Relay | 10 Pulse (4) | 4 Relay | 4 Relay |
| Display Type | — | No Display | No Display | No Display |
| Ingress Protection | — | IP20 | IP20 | IP20 |
| Operating Temperature | — | 20°C ~ 60°C | 20°C ~ 60°C | 0°C ~ 55°C |
| Similarity (0–1) | — | 0.6424 | 0.6424 | 0.6424 |
Why each is parametrically similar
6ES72151AG400XB0 — shares the SIMATIC series, non-expandable box encapsulation, and 125 kB memory footprint. It extends the digital input count to 14 and switches output configuration from relay to pulse (4), increasing I/O density within the same physical form factor.
6ES72111BE400XB0 — matches the seed on series, non-expandable box encapsulation, relay output type, and expandable flag. Memory is reduced to 50 KB and I/O count scales down proportionally (6 DI / 4 DO).
6ES72110BA230XB0 — aligns on series, non-expandable box encapsulation, and relay output type. The MPN prefix relationship and shared "compact" naming convention place it in the same product generation. Operating temperature window differs (0–55 °C vs. 20–60 °C ranges in the peers).
Key parameters — 6ES72141KF400XB0
| Parameter | Value |
|---|---|
| Series | SIMATIC |
| Memory Size | 125 KB |
| Digital Inputs | 4 |
| Digital Outputs | 4 Relay |
| Fast Digital Inputs | 16 |
| Fast Digital Outputs | 4 |
| Encapsulation | Box |
| Expandable | Non-Expandable |
| RoHS | ROHS3 Compliant |
| Product Status | Active |
The 6ES72141KF400XB0 occupies the mid-range slot in the S7-1200 compact CPU family. The 125 KB working memory supports medium-complexity machine-level programs. The mixed I/O complement combines standard digital discrete channels with a dedicated high-speed input block (16 F-DI) and four high-speed outputs (4 F-DO), positioning this variant for applications requiring pulse-train or encoder-driven feedback without adding expansion modules.
Relay outputs on this model are suitable for switching AC loads or low-voltage DC loads without external interface modules. The non-expandable enclosure type indicates a fixed I/O baseline; the 16+4 fast channel count is onboard only.
Integration considerations
Mounting orientation and clearances follow standard SIMATIC S7-1200 panel-mount or DIN-rail practice for box-format compact controllers. Routing of discrete field wiring for the 4 relay output channels typically requires one dedicated return per channel for load isolation. Fast digital inputs support quadrature encoder or high-speed counting modes when the application demands position tracking or event counting at frequencies beyond standard scan thresholds.
Cabinet thermal management should account for the full I/O load and CPU activity; ambient temperature limits for the install site should align with the controller's rated operating range once confirmed from sourcing documentation.
FAQ
Does the 6ES72141KF400XB0 support Ethernet communication? The seed record does not list Ethernet as a specified interface; review the ordering variant description or actual hardware identification for port availability.
What is the high-speed input capability of 6ES72141KF400XB0? The unit specifies 16 fast digital inputs (16 F-DI) and 4 fast digital outputs (4 F-DO) onboard. Frequency and mode support follow S7-1200 high-speed function block conventions.
Can the 6ES72141KF400XB0 be expanded with additional I/O modules? The specification records list this unit as non-expandable (non-expandable flag). No expansion bus or signal module compatibility is indicated in the catalog data.