ICP DAS USA ALM-04-MRTU User manual

ALM-04-MRTU User’s Manual
ALM-04-MRTU User’s Manual (Rev1.0, Jan./2020) ------------- 1
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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.
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ICP DAS assumes no liability for damages resulting from the use of this
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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 2020 by ICP DAS. All rights are reserved.
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The names used for identification only may be registered trademarks of their
respective companies.

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Document Revision
Version Date Description of chan
g
es
Rev1.0 2020-01-02 First
r
elease for ALM-04-MRTU

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Table of Contents
1.Introduction ...................................................................................................... 4
1.1Features .............................................................................................. 4
1.1.1Features Description ........................................................................... 5
1.2Specifications ...................................................................................... 6
2.Hardware .......................................................................................................... 8
2.1Outward Appearance .......................................................................... 8
2.1.1LED Indicator .................................................................................... 9
2.1.2Connector Pin Define .......................................................................... 9
2.2Reset to default ................................................................................. 10
2.3Dimensions ....................................................................................... 10
2.4Wire Connection ................................................................................ 11
2.4.1Wire connection define ....................................................................... 11
2.4.2Digital Input (DI) wiring .................................................................... 11
2.4.3Relay Output wiring .......................................................................... 12
2.4.4Line Out wiring ................................................................................ 12
2.4.5Power Input ..................................................................................... 12
2.4.6RS-485 Wiring ................................................................................. 12
3.Software .......................................................................................................... 13
3.1ALM04 Editor Utility ........................................................................ 13
3.1.1Main Screen ..................................................................................... 13
3.1.2Alarm Mode & Audio Editor .............................................................. 14
3.2Start your Edit .................................................................................. 15
3.2.1Make a Micro SD from project ........................................................... 18
3.2.2File content in SD Card ..................................................................... 18
3.3Alarm Mode Description ................................................................... 19
4.Modbus RTU Protocol.................................................................................... 23
4.1Function Code .................................................................................. 23
4.2Error Response ................................................................................. 23
4.3Data Encoding .................................................................................. 24
4.3.1Binary ............................................................................................. 24
4.3.216-bits Word(INT16) ......................................................................... 24
4.4ALM-04-MRTU Address Mapping .................................................... 25

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1. Introduction
The ALM-04-MRTU controller have RS-485 connection with Modbus RTU protocol
support. The controller makes an easy way to incorporate RS-485 connectivity into
monitoring and control systems. Which makes perfect integration to monitoring in
SCADA software, HMI Modbus & Utility.
Figure 1-1: Application architecture for the ALM-04-MRTU
1.1 Features
 RS-485 Interface
 Modbus RTU protocol
 Photo couple input, Relay output
 Wide operating temperature range
 Wide power supply range
 MP3 Audio, external Line Out
 Digital Volume control
 Support up to 64 audio files
 8 Alarm mode support
 4 Single channel or 15 Binary channel support

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1.1.1 Features Description
Modbus RTU protocols
The Modbus RTU function on the ALM-04-MRTU can be used to provide data
monitoring from HMI/SCADA software built with Modbus RTU driver. All the RS-485
& Modbus RTU configuration are store in MicroSD(T-Flash), it can be created by PC
Utility.
Built-in MP3 Audio decoder & Audio Output
The Alarm sound using MP3(MPEG1-Audio Layer Ⅲ) audio, it support most of
MP3 format(Sample Rate 24/44.1(prefer)/48 KHz, Bitrate 32 64 96 128(prefer) 160 192
Kbit/s), include an 3W audio power amplifier & 1KΩ Impedance Line Out can send the
alarm sound to external PA(Power Amplifier) system.
Support 4 channel trigger input with 8 alarm mode & Output
Include 4 channel Photo couple input & 8 kinds of alarm trigger mode, it also can be
triggering an extend device using external Relay Output. All modes & MP3 audio files
can be created or config by PC Editor.

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1.2 Specifications
Table 1-1: System Specifications
Communication
In
t
erface RS-485
Parity, Data bit, Stop bi
t
None/Odd/Even, 8, 1/2
Baud Rate 300 ~ 115200 bps
Protocol Modbus RTU
Watchdog Yes, 1.8s
LED Indicators
Power/Status
One 2 colors LED, Blue for System status,
Red for Alarm status.
Protection
ESD (IEC 61000-4-2) ±8 kV Air for Random Poin
t
EFT (IEC 61000-4-4) ±2 kV for Powe
r
Waterproof(IEC 60529) IP54 (Panel Mount Upright Position)
Power Requirements
Input Voltage Range 9 ~ 28 VDC with Reverse P
r
otection (Vin to GND)
Power Consumption 0.48 W Standby.
Mechanism
Dimensions(WxLxH) 72 mm x 72mm x 22 mm
Installation Panel Mount/Wall Mount/DIN-Rail Mounting
Environment
Ope
r
ating Temperature -20℃ ~ +75℃
Sto
r
age Temperature -30℃ ~ +85℃
Humidity 10% ~ 85% RH, Non-condensing

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Table 1-2: I/O Specification
Digital Input
Channels 4
Input Type Dry Contact: Sink
Dry Contact Level Off Voltage Level: Open
On Voltage Level: Close to GND
Photo-Isolation 3750 VDC
Input Condition Pulse Width must > 150mSec or more
Digital Output
Channels 1
Output Type Form A
Contact Rating (Resistive Load) DC50V/100mA
Table 1-3: Audio Specification
Audio
Sound Pressure Level 99dB@1KHz/1mete
r
Volume Control Digital Volume Control
Number of Playback 64(Max)
Audio File Format MPEG1-Audio Layer Ⅲ (MP3)
Sample Rate 24/44.1(prefer)/48 KHz
Bit Rate 32 64 96 128(prefer) 160 192 kbit/s
Audio Startup Time < 150ms
Audio Outpu
t
3W(Max)
Line Out Impedance 1KΩ
Table 1-4: Storage Specification
Storage
Audio Files Locate Micro SD(T-Flash) up to 32GB, bundle 4GB
File System Fat16/32
File Transfer PC Editor Utility, Copy to Micro SD

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2. Hardware
2.1 Outward Appearance
ALM-04-MRTU contains I/O connectors, Micro SD, Reset to Default and LEDs.
Figure 2-1: Front Panel
Figure 2-2: Back Panel
Micro SD
(
T-Flash
)
Connecto
r
Power/Status LED
Reset to Defaul
t
Swi
t
ch

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2.1.1 LED Indicator
Table 2-1: System Status Indicator
System Status Indicator
LED Controller Status LED Status
PWR
Power On Blue LED
Alarm Status Red LED
2.1.2 Connector Pin Define
Terminal NO Pin Name Wire Color
1 DI1 Brown
2 DI2 Red
3 DI3 Orange
4 DI4 Yellow
5 D+ Green
6 D- Blue
7 DI.GND Gray
8 Vin Red
9 Vin Red
10 GND Black
11 GND Black
12 Line Out Purple
13 RL White
14 RL White
Figure 2-3: I/O Connector of ALM-04-MRTU

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2.2 Reset to default
Press & hold the reset button on the bottom side over 6 Sec until the Red LED quick
flash and release, the ALM-04-MRTU will restore to default setting, default Device ID is
“1”, RS-485 setting is “115200,N,8,1”, Volume is “5”.
Figure 2-4: Reset button locate in the bottom side of ALM-04-MRTU
2.3 Dimensions
The diagrams below provide the dimensions of the ALM-04-MRTU to use in
defining your enclosure specifications. All dimensions are in millimeters.
Figure 2-5: Dimension of the ALM-04-MRTU

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2.4 Wire Connection
2.4.1 Wire connection define
The following describe the wire color & function
Figure 2-6: Wire color & function
2.4.2 Digital Input (DI) wiring
Figure 2-7: DI Dry contact wiring

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2.4.3 Relay Output wiring
Figure 2-8: Relay Output wiring
2.4.4 Line Out wiring
Figure 2-9: Line Out wiring
2.4.5 Power Input
Figure 2-10: Power Input
2.4.6 RS-485 Wiring
Figure 2-11: RS-485 Wiring

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3. Software
The ALM04_Editor Utility provides the simple way to create or modify the MP3
Audio files & RS-485 Modbus RTU configuration. It is available on Windows
application to configure the ALM-04-MRTU.
Utility Support Windows 7 (or later versions).
3.1 ALM04 Editor Utility
The following is the main screens provided by ALM Utility, these utility tools can be
thought as a useful tool for configuration and monitoring on the ALM-04-MRTU. It
supplies several functions, such as Monitoring, Configuration, Connection, Wi-Fi setting
and F/W upgrade, etc...
3.1.1 Main Screen
Figure 3-1: ALM04_Editor Utility main screen

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3.1.2 Alarm Mode & Audio Editor

ALM-04-MRTU contain 8 kinds of alarm mode, Mode 0 ~ 3 are DI1~DI4 in
single independence channel trigger, in DIx channel priority, the priority of DI
channel is DI4 > DI3 > DI2 > DI1.
Mode 4 ~ 7 are DI1~DI4 in Binary trigger, the priority of DI channel
(DI4,DI3,DI2,DI1) in this mode is 1111b(0x0F)>…> 0001b(0x01).
Alarm Mode
Mode Channel Trigger Function Mode Binary Trigger Function
0 General Pla
y
bac
k
4 General Pla
y
bac
k
1 Trigger Input priorit
y
Playback 5 Trigger Input priority Playback
2 Hold Repeat Pla
y
bac
k
6 Hold Repeat Pla
y
bac
k
3 Memory Once Playback 7 Memory Once Playback
Max 4 MP3 files can be added for each Channel or Binary trigger alarm, it will
playback from #1 to #4 for the trigger depend on the setting.
Relay output can set an extend alarm output to trigger another device.
All those setting can be done in PC Utility, show as below.
Figure 3-2: ALM-04-MRTU PC Utility Audio Editor page.

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3.2 Start your Edit
First, load your project if the “Project Dir:” is not your target work job, or you need
to start with a new project.
To Create a new project, use Load Project button, select the directory where you
want to put and add the new directory name “newwork1”, etc. show as below.
Figure 3-3: New a Project in Editor.
Then, Follow the step number,
(1) Set Modbus RTU Config & Volume:
For default,
Volume level is 6, range from 0(Mute)~10(Max).
For Modbus RTU Device ID is 1.
For RS-485 (115200,N,8,1)
Baud Rate: 115200
Parity: None
Data bit always be 8
Stop bit: 1
Modify those item for your system request.

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(2) Add Audio: Double Click on which File No. you are going to add the audio file, max
64 files can be assigned.
File No. play back, select Play Source (Audio file original location) or Play Project
(Audio file in project), click File No. and press Play button to play, and Stop button to
break playback.
Click File No. and press the Delete button to remove file name in list, show as below.
Figure 3-4: Play Back & Delete File.

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(3) Alarm Config: Frist you need to select Alarm Mode, then you can assign audio
File No. for each alarm channel from combo box, playback Repeat count & Alarm
Output Relay.
Figure 3-5: Alarm Config Mode0~3
Figure 3-6: Alarm Config Mode4~7

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3.2.1 Make a Micro SD from project
Open project folder uses the Open Folder button, copy all the files inside this folder
to the MicroSD root directory.
Figure 3-7: Open Project folder to copy
3.2.2 File content in SD Card
0xx.mp3 : File name start from 001.mp3~064.mp3 is MP3 audio file user can assign in
editor.
m3fn.txt : Content MP3 file’s long file name.
plist.cfg : Content the alarm index play rules, alarm mode, relay output enable, repeat
count.
rtu.cfg : Content the Modbus RTU & RS-485 setting e.g. “1,115200,N,8,1”,
The first “1” is for Modbus RTU Device ID.
“115200,N,8,1” is for RS-485,
Baud Rate: 115200
Parity: None
Data bit always be 8
Stop bit: 1
vol.cfg : Content the volume setting e.g. “5”, the volume level from 0(Mute) ~ 10(Max),
this file will be delete after the device boot up & been read.

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3.3 Alarm Mode Description
Mode 0: Channel Trigger-General Playback
 DI1 to DI4 playback in single independence trigger of 4 channels.
 A pulse input triggered the Playback. Playback repeat when the input is not release.
 When alarm in playback process, any input trigger will ignore.
 The highest DIx channel priority input will take place after the previous playback complete.
Figure 3-8: ALM-04-MRTU Mode 0
Mode 1: Channel Trigger-Trigger Input priority Playback
 DI1 to DI4 playback in single independence trigger of 4 channels.
 When alarm in playback process, any trigger input will break & take place the previous
playback.
 In this mode, it only playback once, even the input is not release.
 Only when multi trigger in same time the highest DIx channel priority will take place
.
Figure 3-9: ALM-04-MRTU Mode 1

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Mode 2: Channel Trigger- Hold Repeat Playback
 DI1 to DI4 playback in single independence trigger of 4 channels.
 When alarm in playback process, only higher DIx channel priority can break & take place the
previous playback.
 Playback will repeat when input are not release & will stop immediately when input released.
 When multi trigger in same time the highest DIx channel priority will take place
Figure 3-10: ALM-04-MRTU Mode 2
Mode 3: Channel Trigger- Memory Once Playback
 DI1 to DI4 playback in single independence trigger of 4 channels.
 When alarm in playback process, any trigger input will memory once for next playback.
 In this mode, it only playback once, even the input is not release.
 When multi trigger in same time the highest DIx channel priority will take place
Figure 3-11: ALM-04-MRTU Mode 3