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Mini Modbus 4DI

Expansion Module – 4 digital inputs

Version 1.2

User Manual

Manufactured for

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Summary of Contents for Mini Modbus 4DI

Page 1: ...Mini Modbus 4DI Expansion Module 4 digital inputs Version 1 2 User Manual Manufactured for ...

Page 2: ...out 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 specifications without notice Please read the instructions carefully and follow the recommendations contained therein WARNING Failure to follow instructions can result in equipment damage or impede the use ...

Page 3: ...h allow to connect two encoders All inputs are isolated from the logic by optocouplers Each channel can be individually configured in one of several modes This module is connected to the RS485 bus with twisted pair wire Communication is via MODBUS RTU or MODBUS ASCII The use of 32 bit ARM core processor provides fast processing and quick communication The baud rate is configurable from 2400 to 115...

Page 4: ...Vrms Input Type PNP or NPN Counters No 4 Resolution 32 bits Frequency 1kHz max Impulse Width 500 μs min Temperature Work 20 C 65 C Storage 40 C 85 C Connectors Power Supply 3 pin Communication 3 pin Inputs 2 x 3 pin Configuration Mini USB Size Height 90 mm Length 56 mm Width 17 mm Interface RS485 Up to 128 devices Maximum current with active Modbus transmission and high state on all inputs Expansi...

Page 5: ...s should be taken at the installation stage to prevent these effects These protective steps include control cabinet grounding module grounding cable shield grounding protective elements for electromagnetic switching devices correct wiring as well as consideration of cable types and their cross sections 3 2 Network Termination Transmission line effects often present a problem on data communication ...

Page 6: ...ad 2 3 30001 Input Registers Registered Read 3 4 40001 Output Registers Registered Read Write 4 6 16 3 4 Communication settings The data stored in the modules memory are in 16 bit registers Access to registers is via MODBUS RTU or MODBUS ASCII 3 4 1 Default settings Parameter name Value Address 1 Baud rate 19200 Parity No Data bits 8 Stop bits 1 Reply Delay ms 0 Modbus Type RTU Expansion Module 4 ...

Page 7: ...p Bits LSB 1 one stop bit 2 two stop bits 40004 3 0x03 Data Bits MSB 7 7 data 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 ON LED indicates that the module is correctly powered TX The LED lights up when the unit received the correct packet and sends the answer 1 2 3 4 LED indicates that on the input is high stat...

Page 8: ...Mini Modbus 4DI User Manual 5 Block diagram 6 Module Connection Expansion Module 4 digital inputs User Manual Version 1 2 8 12 IN1 IN2 μC RS485 VCC GND GND 485 485 COM1 IN3 IN4 COM2 ...

Page 9: ... Counter 2 MSB Read Write 32 bit counter 2 40056 55 0x37 Counter 2 LSB Read Write 40057 56 0x38 Counter 3 MSB Read Write 32 bit counter 3 40058 57 0x39 Counter 3 LSB Read Write 40059 58 0x3A Counter 4 MSB Read Write 32 bit counter 4 40060 59 0x3B Counter 4 LSB Read Write 40061 60 0x3C CCounter 1 MSB Read Write 32 bit value of captured counter 1 40062 61 0x3D CCounter 1 LSB Read Write 40063 62 0x3E...

Page 10: ...d Write Capture counter 1 1154 1153 0x481 Capture 2 Read Write Capture counter 2 1155 1154 0x482 Capture 3 Read Write Capture counter 3 1156 1155 0x483 Capture 4 Read Write Capture counter 4 1169 1168 0x490 Captured 1 Read Write Captured value of counter 1 1170 1169 0x491 Captured 2 Read Write Captured value of counter 2 1171 1170 0x492 Captured 3 Read Write Captured value of counter 3 1172 1171 0...

Page 11: ... 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 done via the USB cable The module does not require any drivers Configurator is a universal program whereby it is possible to configure all available modules Expansion Module 4 digital inputs User Manual Ver...

Page 12: ...ation 5 3 3 Types of Modbus Registers 6 3 4 Communication settings 6 3 4 1 Default settings 6 3 4 2 Configuration registers 7 4 Indicators 7 5 Block diagram 8 6 Module Connection 8 7 Modules Registers 9 7 1 Registered access 9 7 2 Bit access 10 8 Configuration software 11 Manufactured for Aspar s c ul Oliwska 112 80 209 chwaszczyno Poland ampero ampero eu www ampero eu Tel 48 58 351 39 89 48 58 73...

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