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The Yokogawa NP1*C, also cataloged as the NP1*C I/O Module, operates as a compact and versatile hardware interface designed for the NP1 series Programmable Logic Controller (PLC) platforms. This module provides direct electrical execution of field signal acquisition and command output, facilitating the integration of analog and digital instrumentation into robust industrial automation environments.
| Parameter | Specification |
|---|---|
| Model | NP1*C |
| Brand | Yokogawa |
| Type | I/O Module |
| Memory | 512 KB to 4 MB RAM / 256 KB to 2 MB Flash ROM |
| Dimensions | 100 mm x 100 mm x 50 mm |
| Weight | 0.2 kg |
| Operating Temp | -25°C to +70°C |
| Communication | RS-232, RS-485, Ethernet (model dependent) |
| Architecture | Modular I/O design |
The NP1C is engineered to offer high flexibility through its modular design, allowing users to configure a wide range of analog and digital I/O points tailored to specific machine or process control needs. Its internal memory architecture—supporting up to 4 MB of RAM and 2 MB of Flash ROM—enables the storage of complex control logic and system parameters directly at the module level. With integrated support for various industrial communication protocols, the NP1C ensures seamless data exchange between the PLC backplane and external monitoring or supervisory systems.
Q: Does the NP1C support hot-swapping during active system operation? A: No, the NP1C is not designed for hot-swapping. The host PLC rack must be powered down or placed in a defined maintenance mode prior to module removal or installation to prevent corruption of the backplane communication or potential electrical damage.
Q: How does the "*C" suffix impact configuration?
A: The "*C" designation indicates a specific series revision or model variant within the NP1 family, which may influence the specific communication capabilities (e.g., specific Ethernet or serial port hardware availability) and firmware compatibility.