Communication Capabilities of the NP1L-RS4
The NP1L-RS4 delivers RS-485 serial communication for Fuji MICREX-SX SPH programmable controllers. This module enables data exchange between the CPU and external field devices. Engineers select it for multi-drop networks requiring reliable industrial connectivity.
Serial Interface Specifications
A single RS-485 channel supports both full-duplex and half-duplex operation modes. Therefore, you can configure the NP1L-RS4 for diverse master-slave topologies. The module employs start-stop synchronous transmission with software-selectable parameters.
| Parameter | Specification |
|---|---|
| Port Type | RS-485, 1 channel |
| Communication Mode | Full-duplex or half-duplex (software selectable) |
| Synchronization | Start-stop synchronous |
| Baud Rates | 1200 to 57,600 bps |
| Transmission Distance | Up to 1 km at 19.2 kbps |
| Connector | D-sub, 9-pin male |
Electrical and Isolation Parameters
Photocoupler isolation separates the communication lines from internal circuitry. Consequently, the NP1L-RS4 withstands 445 V AC for one minute between I/O pins and frame ground. Insulation resistance reaches 10 MΩ minimum at 500 V DC.
Physical Dimensions and Power Requirements
The unit occupies a single slot within the SPH rack configuration. Its compact profile suits space-constrained control panels.
| Parameter | Specification |
|---|---|
| Weight | Approximately 140 g |
| Occupied Slots | 1 |
| Internal Current Draw | ≤80 mA at 24 V DC |
| Operating Temperature | 0°C to +55°C |
| Storage Temperature | -20°C to +70°C |
| Humidity Range | 10% to 90% RH, non-condensing |
Network Capacity and Integration
Each NP1L-RS4 supports connections to as many as 31 slave stations. Station numbers range from 0 to F hexadecimal. Meanwhile, the SX bus accommodates up to 16 modules in Class B configurations. Function blocks within the CPU handle protocol processing, which simplifies application development.
Details
| Weight | 0.45 kg |
|---|---|
| Dimensions | 120 × 100 × 75 mm |
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