ABB DI825 DCS1

ABB’s DI825 module is an important part of DCS(distributed control system).The following is a detailed introduction to the module:

1.Basic features

Brand and model:ABB,DI825.

Input type:digital input module.

Number of inputs:has 16 digital input channels.

Input voltage and current:The input voltage range is 18~30 volts DC,and the input current is 6 mA at 24 volts.

Channel grouping and monitoring:The input channels are divided into two independent isolation groups,each containing eight channels and with a voltage monitoring input.If voltage monitoring is enabled,channels 18 and 916 will display a channel error when the process voltage fails for its channel group.The detection time of this supervision is 70 milliseconds.

ABB DI825 DCS1

2.Functional features

Error signal detection:The voltage monitoring input will give a channel error signal when the voltage disappears,which can be read through the module bus.

Digital filtering:Input channels can be digitally filtered,with different filtering completion times of 2,4,8 and 16 milliseconds,which means that noise pulses shorter than the filter are filtered out,and pulses longer than 3,6,12 and 24ms pass through the filter.

Multiple MTU type support:Multiple different types of MTUs(such as TU830/TU833,TU810/TU814,TU818,TU838,etc.)can be used to meet different connection requirements.

S800 I/O system integration:The DI825 module has been adopted by the S800 I/O system,which has a high degree of flexibility in signal interface and field wiring to meet user specifications,engineering or maintenance requirements.

3.Communication and connection

Communication function:Supports serial communication methods such as RS232,RS422,RS485,and supports radio stations,telephone dialing,telephone polling dialing,etc.It also supports wired Ethernet and wireless Ethernet communications,and the drivers of all devices support mobile network standards such as GPRS,CDMA,GSM,etc.

Module connection:In the specific installation process,terminal connection and signal adapter products are used to meet the connection requirements.

IV.Application and compatibility

Application field:DI825 module is widely used in CNC machinery,metallurgy,oil and gas,petrochemical,chemical,paper printing,textile printing and dyeing,machinery,electronic manufacturing,automobile manufacturing,plastic machinery,electricity,water conservancy,water treatment/environmental protection,municipal engineering,boiler heating,energy,power transmission and distribution and many other industries.

System compatibility:DI825 module supports hot configuration during operation,various levels of redundancy,HART routing and event sequence(SOE).It can be integrated and communicated with other ABB systems through interfaces such as S100 I/O of CI856.

In summary,ABB’s DI825 module is a powerful,flexible and reliable digital input module suitable for various industrial automation and control systems.

The company mainly imports PLC modules,programmable controllers,servo control systems and DCS spare parts,such as:ABB,AB(Rockwell),GE(General Electric),Bentley,Honeywell Er),Emerson.),Motorola,Invensys,Westinghouse,etc.The company has established close cooperative relations with many world-renowned PLC and DCS product maintenance service providers.We can purchase goods directly from abroad and provide equipment and spare parts from different countries and manufacturers.

We supply goods directly from abroad,without intermediaries,reducing the cost of use.

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