ABB WBPEEUD240002A2 digital input/output module

Description

Digital signal processing

The AIN-120 module uses a floating-point digital signal processor (DSP) to implement a low-pass filter.

The advantage of using a DSP device for this function is that significant noise suppression (better than 70 dB) can be achieved while maintaining a fast precipitation time (75 ms) for the input step response.

As mentioned earlier, The Delta-Sigma analog-to-digital converters used in the AIN-200, AIN-220, and AIN-200 have very high noise suppression (better than 70 dB), and the Delta-Sigma used in the AIN-220 and AIN-300 blocks The analog-to-digital converter has built-in digital signal processing and provides a low-pass filter.

calibrate

No field calibration required. Depending on the input type, the electronics automatically make the following adjustments to the original analog input:

Drift correction using on-board zero and range reference voltages.

Wire resistance adjustment for low-level, thermocouple, and RTD inputs.

Cold junction temperature compensation for thermocouple inputs using internal or external cold junction reference.

Digital input

The Harmony I/O system supports 24 VDC, 48 VDC, 125 VDC, 120 VAC, and 240 VAC digital inputs via DIO-400 blocks. Each DIO module supports 16 input channels. DIO accepts all input ranges, and each channel can be selected with a jumper. The buffeting time of the digital input can be selected by the software.

The DIO module reads the voltage level of its input channel, converts the voltage to a Boolean logic state (0 or 1), and then reports the input state to the controller. The module also provides channel status information along with reporting each input.

The digital input channel provides on-board current limitation for short circuit protection. Current limiting prevents circuit damage caused by excessive input channel current due to field input faults. After the fault is rectified, the channel will resume full function. The DIO block has an optically isolated input channel.

Digital output

The Harmony I/O system supports digital output through DIO-400 blocks, DOT-100 blocks, and DOT-120 blocks.

The DIO-400 block has an open-collector output channel that can switch between 24 VDC and 48 VDC voltages and a maximum load current of 250 mA. The user can choose 0, 1, or keep the default state. The output is an optical isolated channel. As an option, the DIO module's 24 VDC output can be used to drive the DPDT electromechanical relays in the RI-100 module or the solid-state relays in the RI-200 module. Depending on the type of RLY block, the relay outputs switchable voltages up to 240 VAC with a maximum load current of 10 amps.

The I/O system supports 24 VDC, 48 VDC, 125 VDC, 120 VAC, and 240 VAC digital outputs via DOT blocks. The output channel of DOT block is SPDT electromechanical relay output.

These outputs can switch voltages up to 240 VAC with a maximum load current of three amps.

The DOT-120 output channel uses a fuse and is monitored via a read-back circuit on the module.

The module continuously monitors the readback of the output contacts to verify and ensure the integrity of the hardware and field wiring. The module also reports the read-back value to the controller.

Choose Xiamen control Smith after sale worry

Excellent product quality

Only cooperate with manufacturers of first-line brands in the industry

Imports/Products

Good pre-sale service

Communicated with customers repeatedly about product model, quality, price and delivery date

Work with the customer to determine the best solution

Address user concerns in advance

Business execution in place

Ordered products delivered on time

Make perfect delivery plan to ensure the time limit

Assist users to handle the acceptance procedures

Perfect after-sales service

During the warranty period, problems will only be replaced and not repaired

Never put a problem on the back of your head

Service hotline 7x24 hours service

Solemn promise

1. All the items sold by the company, module card parts, etc., the quality problems arising from normal use during the warranty period are replaced free of charge, and there is no evasion.

2. For materials and equipment that have not been discontinued beyond the warranty period, only the cost of relevant parts will be charged for quality problems.

3. Provide replacement models and equipment replacement process services for discontinued materials and equipment.

4. Customers have purchased materials and equipment, lifetime free upgrade system software, related technical information provided free of charge.

5. Visit the use of materials purchased by customers from time to time, and solve any problems in time.

6. The company hotline provides 24-hour service, and the questions raised by customers are answered within 1 hour.

7. Not done, the company spirit of "thoughtful service, responsible to the end" attitude, from the customer's point of view to solve the problem, with serious and rigorous enterprise style, dedicated to each customer service.