ICP DAS USA ALM-04-MRTU, User Manual

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ALM-04-MRTU User’s Manual
ALM-04-MRTU
User’s Manual (Rev1.0, Jan./2020) ------------- 4
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