Technical Specifications
| Parameter | Specification |
|---|---|
| Model | ALR121‑S01 |
| Type | Serial Communication Module (RS‑422/RS‑485, 2‑port) |
| Interface | RS‑422 (point‑to‑point) / RS‑485 (multipoint) |
| Transmission Speeds | 1 200 / 2 400 / 4 800 / 9 600 / 19 200 / 38 400 bps |
| Current Consumption | Approx. 0.5 A |
| External Dimensions | Width ≈ 32.8 mm × Height ≈ 142.9 mm × Depth ≈ 125.5 mm |
| Weight | Approx. 0.34 kg |
FAQ
Q1: What does the suffix “‑S01” in ALR121‑S01 indicate?
A1: The “‑S01” denotes a standard module with a specific revision, typically including minor functional updates compared to the “‑S00” version.
Q2: Which communication protocols are supported?
A2: It supports RS‑422 for point‑to‑point and RS‑485 for multipoint serial communication networks.
Q3: What baud rates are supported by this module?
A3: Supported baud rates include 1 200, 2 400, 4 800, 9 600, 19 200, and 38 400 bps.
Q4: What are the dimensions and weight of the module?
A4: The module is approximately 32.8 mm wide, 142.9 mm high, 125.5 mm deep, and weighs about 0.34 kg.
Q5: What is the module’s current consumption?
A5: It draws approximately 0.5 A under normal operating conditions.
Q6: Can ALR121‑S01 be used in redundant communication setups?
A6: Yes, dual modules can be installed in adjacent slots to provide fault‑tolerant communication.
Q7: What systems is this module designed for?
A7: It is intended for field control systems and safety control stations requiring serial communication with subsystems like FA‑M3 or Modbus devices.
Q8: Where can installation and wiring guidance be found?
A8: Comprehensive installation and wiring instructions are provided in the ALR121 series hardware specification and installation manual.
