SIMATIC S7-400 FM 455 C Continuous Controller
$5,239.03 – $5,821.14
FM 455C — 16-channel continuous closed-loop controller module, 8 AI (with thermocouple/2-wire) or 16 AI (with Pt100/4-wire) + 16 DI + 16 AO, 24V DC supply, typ. power loss 12W. [VERIFIED via Siemens official datasheet]
Technical Specifications
| Module Type | Function Module (Continuous Control) |
| Analog Inputs | 16 channels with thermocouple/2-wire connection, or 8 channels with Pt100/4-wire connection |
| Digital Inputs | 16, IEC 61131 Type 2 |
| Analog Outputs | 16 |
| Power Supply | 24V DC (20.4–28.8V permissible range) |
| Power Loss | Typ. 12W, max. 17.3W |
Typical Applications
Used to offload continuous PID-type closed-loop control tasks (such as temperature or flow control loops) from the main CPU to a dedicated function module — the integrated analog and digital I/O on the module itself reduces the need for separate signal modules in control-loop-heavy applications.
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