CWT-MB Standard Modbus I/O Rtu Scada Io Module 4-20mA Analog Input Output
Standard Modbus I/O Rtu Io Module
CWT-MB series Modbus IO module series with multi-channel DI/DO/AI/PT100 input. This module is designed for the whole industry, power supply, signal inputs and outputs, RS232 and RS485 interface(option Ethernet), interference protection designed to ensure data accuracy and reliability. RS485 communication interface performs MODBUS RTUprotocol, can be directly connected with the various types of PLC, DCS system, operator panel and a variety of configuration software.
model list
Ethernet is optional for all models
System parameters
CPU | 32-bit ATMEL ARM, 72MHZ |
OS | GCOS,10ms scheduling mechanism |
Power | 7-35VDC @2W, power supply reverse protection, isolation design |
Installation | DIN rail mounting or screw fixing |
Working Environment | -40°C~85°C,5%~95%RH(non-condensing) |
Protection | IP20 |
Watchdog | 1.5m guard |
Series port parameters
Port type | 1RS485 & 1RS232 |
Protection | DCDC isolation design, 2500V lightning protection, ESD, overvoltage, overcurrent protection |
Baud rate | 1200~115200,default 9600 |
Parity | Even, Odd, None |
start bit | 1 bit |
data bits | 8 bit |
Stopbits | 1,2bits |
Protocol | MODBUS RTU |
default | 9600.N.8.1,slave id is 1 |
Analog input
Input type | 4~20mA<default>,option: 0~20mA/0~5/1~5/0~10V |
Precision | 0.1%,16 bit |
Refresh rate | 0.01m |
Digital input
ON signal level | 5-30VDC,6mA@24VDC |
OFF signal level | 0-3VDC |
Protection | optocoupler isolation, 2500V lightning protection, overvoltage, overcurrent protection |
sample rate | 0.01m |
Digital output
Output type | normal open relay or Transistor output |
Isolation | optocoupler isolation& relay isolation |
Resistive load | 5A/250VAC, 5A/30VDC |
Response time | ≤0.01s |
PT100 Input
Input type | PT100 |
Precision | 0.1°C |
Measure range | -200°C to 320°C |
we also provide GSM/GPRS/3G/4G RTU
the modbus io module can extend DI/DO/AI/AO for Cellular RTU
£ CWT5000 series cellular RTU list
| model | IO interface | communication interface | Modbus | SMS | TCP/IP Over cellular | More detail |
| CWT5005A | 2DI+2DO | 1 RS232 | × | √ | × | view» |
| CWT5005B | 2DI+1DO(relay) | 1 RS232 | × | √ | × | view» |
| CWT5010 | 4DI+4DO | 1 RS232 | × | √ | × | view» |
| CWT5011 | 8DI+8DO+4AI | 1 RS232 | × | √ | × | view» |
| CWT5110 | 4DI+4DO | 1 RS232 | × | √ | √ | view» |
| CWT5111 | 8DI+8DO+4AI | 1 RS232 | × | √ | √ | view» |
| CWT5015 | 2DI+3DO(relay)+1AI | 1 RS232 | × | √ | √ | view» |
| CWT5016 | 4DI+4DO+4TI+4AI | 1 RS232 | × | √ | √ | view» |
| CWT5002 | 4DI+4DO | 1 RS232(RS485 optional) | √ | √ | √ | view» |
| CWT5018 | 4DI+2DO(relay)+8AI | 1 RS232+1RS485+1Ethernet | √ | √ | √ | view» |
| Cellular module default is 2G module, option: 3G/4G module | ||||||
£ Application case
£ Application
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£ Certificates
RS485 Ethernet Digital Analog Input Output SCADA modbus rtu Data Acquisition i/o Module
RS485 Ethernet Digital Analog Input Output SCADA modbus rtu Data Acquisition i/o Module
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