40-CH 0-5v 0-20mA 10K NTC thermistor analog input RS485 Modbus RTU

S5140 is a high quality and low cost analog data acquisition module with 40 analog inputs.  each input can be 0-5V,0-20mA,thermistor,dry contact,open-collector input,It also accept 0-10V input but need a external resistor. Output is RS485 BUS with surge protection, to reduce interference by serial port communication, the output isolated by high speed opto-couplers. The modules are slave devices that can be easily controlled via the RS485 serial interface using the industry standard Modbus protocol.

Highlights:

l         Surge-protected analog inputs with 12-bit resolution and 100k sample speed

l         Input can be any combination of 0-5V,4-20mA,0-10V,NTC 10K thermistor and dry contact

l         Surge-protected and isolated Rs485 ensure reliability

l         The channel number is configurable, can be set up from 1 channel through 40 channels, improve sample rate for small count analog input

l         Standard ModBus protocol allows for up to 254 unique devices on one RS485 network

l         A lot of spare FLASH can be used to store user's parameters

l         Islated RS485, non-isolated RS485, RS232 for optional

l         Can update your firmware via ISP through RS485 network

Application:

ü         Remote data acquisition

ü         Process monitoring

ü         Industrial process control

ü         Energy management

ü         Supervisory control

ü         Security systems

ü         Laboratory automation

ü         Building automation

ü         Product testing

ü         Direct digital control

Technical data:

Resolution-----------------------------------------------------------------------------------------------12-bit

Input channel number---------------------------------------------------------------------------------------       40

Input range--------------------------------0-5V,0-10v,0-20mA, thermistor, dry contact,open-collector

Input protection------------------------------------------------------------------------------Lightning,static

Accuracy-------------------------------------------------------------------------------------------------±0.1%

Zero drift-----------------------------------------------------------------------------------------------±3uV/℃

       Sample rate--------------------------18 sample/second(40 channels),900 sample/second(1 channel)

       Output BUS-----------------------------------------------------------------RS485(opto-couplers isolated)

       Output Protection-----------------------------------------------------------------------------Lightning,static

       Power input---------------------------------------------------------------------------------9~24V(AC/DC)

       Power consumption------------------------------------------------------------------------------------<0.6W

Ambient temperature:

              Operation-------------------------------------------------------------------------- -20~85℃(-4~185℉)

                   Storage---------------------------------------------------------------------------------------- -40~125℃(-40~257℉)

Ambient humidity-----------------------------------------------------------------------------------------------10%~90%RH

Material,enclosure-----------------------------------------------------------------------Flame proof plastic

Enclosure rating--------------------------------------------------------------------------------------------IP31

Colour----------------------------------------------------------------------------------------------White/Black

Size---------------------------------------------------------------------------------------------115*90*43 mm

Wiring diagram and description:

                                          Top view figure

                                          Communication wiring diagram

Dry contact wiring diagram

Input 1 to 40 can be configure as dry contact, open-collector input, AGND is common terminal for these input signal

                                          Thermistor,0-5V,4-20mA input

The thermistor can default is 10K NTC, can custom other type thermistor.

0-10V analog input,need a external 250R resistor.

Inputs

Each input can be jumper-configured in 1 of 4 ways

²        0-5V signal

²        0-10V, need a external 250R resistor

²        0-20mA

²        Dry contact, thermistor, open-collector. thermistor default is 10K NTC, but can custom according to your sensor type