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Yokogawa SR1B‑045N‑1KC – Module Overview
The Yokogawa SR1B‑045N‑1KC is a field‑interfacing digital output module designed for Yokogawa’s CS3000 (and related) Distributed Control Systems (DCS). It provides eight digitally controlled outputs (via relay or transistor) for operating valves, motors, pumps and other actuators, forming a reliable interface between the DCS logic and field devices
Technical Specifications
(Dimensions and weight included)
| Parameter | Value |
|---|---|
| Model No. | SR1B‑045N‑1KC |
| System support | Yokogawa CS3000 DCS |
| Output channels | 8 (configurable as relay or transistor) |
| Relay output current | Up to 2 A per channel |
| Transistor (solid‑state) | Up to 3 A per channel |
| Input/output voltage | 24 V DC |
| Operating temperature | –20 °C … +60 °C |
| Relative humidity | 0 – 92 % RH |
| Dimensions | 120 × 60 × 100mm |
| Weight | 0.8kg |
| Power supply | 18–28 V DC |
| Redundancy/hot‑swap | Dual‑redundant design; hot‑swappable with system operating |
Applications
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Process industries – oil & gas, petrochemical, power generation control
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Manufacturing automation – controlling actuators on assembly lines
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Building automation – pumps, HVAC, lighting, security system control
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General industrial – robotics, water/wastewater treatment, material handling
Advantages
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Dual‑redundancy – ensures uninterrupted operation even under module failure Hot‑swappable – can be replaced or serviced without stopping process.
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High drive capability – up to 3 A per channel accommodates various field loads.
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Compact design – efficient space use in DCS cabinets.
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Wide environmental tolerance – –20 °C to +60 °C and high humidity tolerance.
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Backward compatibility – integrates with legacy Yokogawa DCS systems.
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Reliable build – industrial‑grade ruggedness and long-term availability.
FAQ
-
Q: Is the module hot‑swappable without shutdown?
A: Yes—parallel operation and dual‑redundancy allow live replacement -
Q: Can each output be relay or transistor?
A: Yes, channels are independently configurable. -
Q: Max load per channel?
A: Up to 2 A for relay outputs; 3 A for transistor outputs -
Q: What supply voltage is required?
A: 24 V DC (18–28 V). -
Q: Working environment specs?
A: –20 °C to +60 °C, 0–92 % RH. -
Q: What system does it integrate with?
A: Designed for Yokogawa CS3000 / SR series DCS. -
Q: Weight and dimensions?
A: 0.8 kg; 120 × 60 × 100mm. -
Q: Is it a new original part?
A: Typically available both new‑original and re‑conditioned; verify upon order -
Q: Does vendor offer warranty?
A: Yes—usually 12 months warranty. -
Q: What’s lead time?
A: Often 1–3 days in stock, subject to global shipping circumstances
Related Series or Equivalent Models
| Model | Description |
|---|---|
| SR1B‑045N‑2KC | Similar 8‑channel digital output with updated part code |
| SR1B‑045N‑1KD | Alternate revision of digital output module |
| AAI135‑H03 | 16‑point analog input module (same platform) |
| SPW482‑E3 | Power supply module for SR1B rack |
| AAB841‑S00 | Analog I/O module within the same family |
| SR1220E2 | Yokogawa CPU/control module in B‑series family |
Popular Yokogawa DCS Modules
| Model | Role |
|---|---|
| AAI135‑H00 S1 | 16‑point analog input module |
| AAI143‑H00 S1 | Another variant of 16‑pt analog input |
| AAI141‑H03 S1 | Analog I/O module (16‑point) |
| PSCCM24AAN | Critical control module (CCM) for safety systems |
| SA I533‑H33/PRP | Analog input module with PRP function |
| SPW481‑53 | Power supply module within SPW family |
