ICP DAS USA M-2004 User manual

M-2004 & M-7004 User Manual, v 1.0.2, Apr. 2020 E-mail: [e-mail]
Copyright © 2017 ICP DAS Co., Ltd. All Rights Reserved.
1
M-2004 and M-7004
User Manual
Version 1.0.2/ April 2020

M-2004 & M-7004 User Manual, v 1.0.2, Apr. 2020 E-mail: [e-mail]
Copyright © 2017 ICP DAS Co., Ltd. All Rights Reserved.
2
Warranty
All products manufactured by ICP DAS are under warranty
regarding defective materials for a period of one year from the
date of delivery to the original purchaser.
Warning
ICP DAS assumes no liability for damages resulting from the use
of this product. ICP DAS reserves the right to change this manual
at any time without notification. The information furnished by ICP
DAS is believed to be accurate and reliable. However, no
responsibility is assumed by ICP DAS for its use, or for any
infringements of patents or other rights of third parties resulting
from its use.
Copyright
Copyright @ 2017 by ICP DAS Co., Ltd. All rights are reserved.
Trademarks
The names used for identification only may be registered
trademarks of their respective companies.
Contact Us
If you have any problems, please feel free to contact us.
Email: [email protected]

M-2004 & M-7004 User Manual, v 1.0.2, Apr. 2020 E-mail: [e-mail]
Copyright © 2017 ICP DAS Co., Ltd. All Rights Reserved.
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Table of Contents
Table of Contents......................................................................3
Chapter 1. Hardware.............................................................4
1.1. Introduction....................................................................................4
1.2. Features........................................................................................7
1.3. Specifications................................................................................8
1.4. Pin Assignment ...........................................................................10
1.5. Wiring..........................................................................................12
1.6. Block Diagram.............................................................................13
1.7. Dimensions..................................................................................14
1.8. Jumper Settings ..........................................................................15
Chapter 2. Quick start.........................................................16
Chapter 3. Using DS18B20 Temperature Sensor..............23
Chapter 4. DCON Command Sets......................................28
Chapter 5. Modbus Address Mappings.............................34
Chapter 6. Troubleshooting ...............................................41

M-2004 & M-7004 User Manual, v 1.0.2, Apr. 2020 E-mail: [e-mail]
Copyright © 2017 ICP DAS Co., Ltd. All Rights Reserved.
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Chapter 1. Hardware
1.1. Introduction
The M-2004/M-7004 is a digital temperature sensor module that
provides four ports for 2- or 3 wire DS18B20 digital temperature
sensor input. The DS18B20 temperature sensor has a high
accuracy of ±0.5°C when measuring temperatures between -10
and + 85°C, with a total measurement range of between -55 and
+125°C. Up to 20 DS18B20 sensors can be connected to each
port on the M-2004/M-7004 module in a daisy-chain
arrangement with a maximum wiring distance of 100 meters.
The M-2004/M-7004 module is fully RoHS compliant, and
features 4 kV ESD protection as well as 3000 VDC intra-module
isolation.

M-2004 & M-7004 User Manual, v 1.0.2, Apr. 2020 E-mail: [e-mail]
Copyright © 2017 ICP DAS Co., Ltd. All Rights Reserved.
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Applications
Temperature Measurement
Environment Monitoring
Tunnel Monitoring
Building Monitoring

M-2004 & M-7004 User Manual, v 1.0.2, Apr. 2020 E-mail: [e-mail]
Copyright © 2017 ICP DAS Co., Ltd. All Rights Reserved.
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M-2004 & M-7004 User Manual, v 1.0.2, Apr. 2020 E-mail: [e-mail]
Copyright © 2017 ICP DAS Co., Ltd. All Rights Reserved.
7
1.2. Features

M-2004 & M-7004 User Manual, v 1.0.2, Apr. 2020 E-mail: [e-mail]
Copyright © 2017 ICP DAS Co., Ltd. All Rights Reserved.
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1.3. Specifications
System Specifications
M-2004

M-2004 & M-7004 User Manual, v 1.0.2, Apr. 2020 E-mail: [e-mail]
Copyright © 2017 ICP DAS Co., Ltd. All Rights Reserved.
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M-7004

M-2004 & M-7004 User Manual, v 1.0.2, Apr. 2020 E-mail: [e-mail]
Copyright © 2017 ICP DAS Co., Ltd. All Rights Reserved.
10
1.4. Pin Assignment
M-2004