Table Of Contents - ICP DAS USA ACS-20B-MRTU User Manual

1. Introduction ......................................................................................................................... 6
1.1 Features .......................................................................................................................... 7
2. Hardware .............................................................................................................................. 8
2.1 Specifications .................................................................................................................. 8
2.2 Appearance ..................................................................................................................... 9
2.3 Pin assignments ............................................................................................................ 10
2.4 LED Indicators .............................................................................................................. 11
3. Configured by Hardware ................................................................................................... 12
3.1 Relay Hold Time ............................................................................................................ 12
3.2 Toggle Switch Mode ...................................................................................................... 13
3.3 Sensing Range ............................................................................................................. 13
3.4 Restore Default Communication Settings ..................................................................... 14
4. Configured by Software .................................................................................................... 15
4.1 ACS-20 Utility ................................................................................................................ 15
4.2 Serial Communication ................................................................................................... 16
4.3 Test Locked Mode ......................................................................................................... 17
4.4 Set Relay Hold Time ..................................................................................................... 17
4.5 Set Toggle Mode ........................................................................................................... 18
4.6 Invert Red/Blue LED ..................................................................................................... 18
4.7 Set RTC ........................................................................................................................ 19
4.8 Set IR Sensing Record Mode ........................................................................................ 20
4.9 Set Locked Periods ....................................................................................................... 20
4.10 Access All Settings ........................................................................................................ 21
4.11 Configuration File .......................................................................................................... 22
5. Modbus Command ............................................................................................................ 23
5.1 Modbus Register Table ................................................................................................. 24
5.1.1 Modbus Input Registers .......................................................................................... 24
5.1.2 Modbus Holding Registers ..................................................................................... 25
ACS-20-MRTU User Manual
Copyright © 2020 ICP DAS Co., Ltd. All Rights Reserved

Table of Contents

Version 1.1
E-mail: service@icpdas.com
2
Page：