ABB GJR5251600R0202 07AI91 Analog Input Unit

ABB GJR5251600R0202 07AI91 Analog Input Unit

Basic information

The ABB GJR5251600R0202 07AI91 is an analogue input unit for receiving and processing analogue signals. In areas such as industrial automation systems, it serves to convert external analogue signals into digital signals for further processing by the control system.

Functional features

Signal reception range:

Able to receive many types of analogue signals, such as voltage signals (e.g. 0 - 10V) or current signals (e.g. 4 - 20mA). This wide range of signal reception makes it compatible with the output signals of different sensors, such as temperature sensors, pressure sensors, flow sensors, etc., whose output signals can be directly connected to the unit.

Highly accurate conversion:

The unit is equipped with a high-precision analogue-to-digital conversion function. It can accurately convert the received analogue signals into digital signals to ensure the accuracy of the signals. For example, in high-precision industrial process control, even small signal changes can be accurately converted and processed, enabling fine control of production processes.

Signal Conditioning Function:

May contain signal conditioning circuits for filtering, amplifying and other processing of the input analogue signal. Filtering removes noise interference from the signal and improves the signal quality; amplification can amplify weak signals to a suitable range to meet the requirements of subsequent conversion and processing.

Compatibility and integration:

The analogue input unit has good compatibility with other ABB automation equipment and many standard industrial control systems. It can be easily integrated into existing automation systems, such as PLC (Programmable Logic Controller) control systems, where the converted digital signals are transmitted to the PLC for further logic processing via a standard communication interface.

Areas of application

Industrial automation process control:

Widely used in process control in the chemical, petroleum, power and other industries. For example, in the chemical production process, it can receive analogue signals from temperature sensors, convert them into digital signals and then transmit them to the control system, which is used to monitor and control the temperature in the reaction kettle to ensure that the chemical reaction is carried out under the appropriate temperature conditions.

Manufacturing automated production line:

In the automated production line of automobile manufacturing, machining and other manufacturing industries, it is used to receive analogue signals from various sensors. For example, in the automotive engine assembly line, receive the signal of the pressure sensor to monitor the pressure of the bolt tightening, to ensure the quality of assembly.

Intelligent building system control:

In the automation system of intelligent buildings, it is used to receive analogue signals from environmental sensors. For example, receiving signals from light intensity sensors to adjust the lighting system in the building, or receiving signals from temperature sensors to control the operation of the air conditioning system to achieve intelligent management of the building.

Electrical interfaces

The electrical interfaces for the output of measured values and  communication with external systems include  

• The integrated Ethernet-10/100BASE-T interface for  

– gas analyzer configuration with configuration software ECT  

– QAL3 data transfer if the QAL3 monitoring option is integrated in the gas analyzer  

– data transmission with Modbus TCP/IP protocol (measured  values, status signals and control signals)  as well as the integrated I/O modules depending on the functional  range and order  

· Profibus module with one RS485 and one MBP interface (also  according to VDI 4201 Part 2),  

· Modbus module with one RS485 and one RS232 interface (also  according to VDI 4201 Part 3),  

· Digital I/O module with four digital inputs and four digital outputs,  

· 2-way analog output module with two analog outputs,  

· 4-way analog output module with four analog outputs.