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RS485 MODBUS Module 8AI

User Manual

2.2.  Technical Specifications

Power Supply

Voltage

10-38VDC; 10-28VAC

Maximum Current

120 mA @ 12V / 100 mA @ 24V

Inputs 

No of inputs

8

Voltage input

0V to 10V (resolution 1.5mV)

Voltage input

-10V to 10V (resolution 1.5mV)

Voltage input

0V to 1V(resolution 0.1875mV)

Voltage input

-1V to 1V(resolution 0.1875V)

Current input

4mA to 20mA (resolution 3.75μA)

Current input

0mA to 20mA (resolution 3.75μA)

Current input

-20mA to 20mA (resolution 3.75μA)

Measurement resolution

14 bits

ADC processing time

16ms / channel

Digital outputs

Maximum current and voltage

500mA / 55V

Temperature

Work

-20 °C - +65°C

Storage

-40 °C - +85°C

Connectors

Power Supply

2 pin

Communication

3 pin

Inputs & Outputs

2 x 10 pin

Quick connector

IDC10 

Configuration

Mini USB

Size

Height

120 mm

Length

101 mm

Width

22,5 mm

Interface

RS485

Up to 128 devices

Expansion Module  – 8 analog inputs

User Manual

Version 1.5

4 / 15

Содержание 8AI

Страница 1: ...RS485 MODBUS Module 8AI Expansion Module 8 analog inputs Version 1 5 User Manual Manufactured for...

Страница 2: ...ithout incurring any liability for the purposes of commercial law This information does not release you from the obligation of own judgement and verification We reserve the right to change product spe...

Страница 3: ...te adapter The device has a set of 8 analog input measurements In addition the module is equipped with 2 configurable digital outputs This module is connected to the RS485 bus with twisted pair wire C...

Страница 4: ...4mA to 20mA resolution 3 75 A Current input 0mA to 20mA resolution 3 75 A Current input 20mA to 20mA resolution 3 75 A Measurement resolution 14 bits ADC processing time 16ms channel Digital outputs M...

Страница 5: ...shown below The module is mounted directly to the rail in the DIN industry standard Power connectors communication and IOs are at the bottom and top of the module USB connector configuration and indi...

Страница 6: ...terminated at both ends with a resistor across the line equal to its characteristic impedance Both ends must be terminated since the direction of propagation is bi directional In the case of an RS485...

Страница 7: ...rs Access to registers is via MODBUS RTU or MODBUS ASCII 3 5 1 Default settings You can restore the default configuration by the switch SW6 see 3 5 2 Restore the default configuration Baud rate 19200...

Страница 8: ...bits 8 8 data bits 40006 5 0x05 Response delay Time in ms 40007 6 0x06 Modbus Mode 0 RTU 1 ASCII 4 Indicators Indicator Description Power supply LED indicates that the module is correctly powered Comm...

Страница 9: ...RS485 MODBUS Module 8AI User Manual 5 Module Connection Expansion Module 8 analog inputs User Manual Version 1 5 9 15...

Страница 10: ...odule as shown below Jumper Description off Voltage measurement shorted Current measurement 7 Switches Switch Function Description 1 Module address 1 Setting module address from 0 to 31 2 Module addre...

Страница 11: ...uts Read Write Alarms state bit 8 and 9 alarm outputs 30053 52 0x34 Analog 1 Read Value of analog input in mV for voltage inputs in A for current inputs 30054 53 0x35 Analog 2 Read 30055 54 0x36 Analo...

Страница 12: ...ion and 6 Selecting the input mode 40088 87 0x57 Input 2 settings Read Write 40089 88 0x58 Input 3 settings Read Write 40090 89 0x59 Input 4 settings Read Write 40091 90 0x5A Input 5 settings Read Wri...

Страница 13: ...ut is connected 807 806 0x326 Input 7 Read Set when the input is connected 808 807 0x327 Input 8 Read Set when the input is connected 817 816 0x330 Alarm 1 Read Alarm state 1 818 817 0x331 Alarm 2 Rea...

Страница 14: ...the current value of other registers of the module This program can be a convenient way to test the system as well as to observe real time changes in the registers Communication with the module is don...

Страница 15: ...Modbus Network 6 3 4 Types of Modbus Registers 7 3 5 Communication settings 7 3 5 1 Default settings 7 3 5 2 Restore the default configuration 7 3 5 3 Configuration registers 8 4 Indicators 8 5 Modul...

Страница 16: ...Input No Voltage input default Current input 1 2 3 4 5 6 7 8...

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