This document describes the features and characteristics of the CB series products from RKC INSTRUMENT INC.
About this manual
The document outlines safety precautions and proper handling of the CB series temperature controllers, emphasizing fire‑hazard prevention, correct wiring, and regular maintenance before power is applied. It also describes the intended users and the required knowledge for safe operation.
Detailed sections cover communication configuration (RS‑485, baud rates, data format), wiring diagrams, fault analysis procedures, and ASCII tables for data exchange. The manual serves as a complete guide for installing, configuring, and servicing the controllers. This manual is written in Chinese.
What's inside
- Safety Instructions
- Installation
- Communication Settings
- Interface Specifications
- ASCII Table
- Fault Analysis
- Wiring Diagram
Specifications
| Communication Interface | RS‑485 |
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| Network Topology | Half‑duplex multi‑drop |
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| Supported Baud Rates | 2400, 4800, 9600, 19200 bps |
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| Data Bits | 7 or 8 |
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| Parity | None, Even, Odd |
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| Stop Bits | 1 or 2 |
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| Maximum Nodes | 32 devices |
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| Signal Voltage Levels | 0–2 V (logic low), 2–5 V (logic high) |
Frequently asked questions
What communication protocol does the controller use?
The controller uses an RS‑485 interface with half‑duplex multi‑drop communication.
How many devices can be connected to one controller?
Up to 32 devices, including the master controller, can be connected in the network.
What baud rates are supported?
The controller supports 2400, 4800, 9600 and 19200 bps.
What safety step must be taken before powering the controller?
All wiring must be completed and verified before applying power to avoid fire or equipment damage.