DP840 ABB S800 I/O 8-Ch Pulse Counter Module
Manufacturer: ABB
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Part Number: DP840
Condition：New with Original Package
Product Type: Pulse Counter Modules
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Country of Origin: Sweden
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
ABB DP840 Pulse Counter Module
The DP840 is an 8-channel pulse counter and frequency measurement input module designed for ABB S800 I/O and System 800xA control platforms. Each independent channel can be individually configured to operate as a pulse counter, frequency or speed input, or standard digital input. The module supports NAMUR, 12 V, and 24 V signal levels, making it adaptable for pulse monitoring and flow measurement applications.
Signal Processing and Termination Unit Integration
Each of the eight channels accommodates signal input frequencies up to 20 kHz and utilizes a 16-bit accumulation counter. Input filter response times are configurable on a per-channel basis to suit different sensor characteristics. The DP840 connects to field wiring using compatible S800 module termination units, including the TU810V1, TU812V1, TU814V1, TU830V1, and TU833V1. Built-in cyclic self-diagnostics continuously evaluate hardware status to maintain measurement reliability.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | DP840 |
| Brand | ABB |
| Product Type | Pulse Counter / Frequency Measurement Module |
| System Compatibility | ABB S800 I/O, System 800xA |
| Input Channels | 8 independent channels |
| Channel Operating Modes | Pulse counter, frequency measurement, digital input |
| Counter Architecture | 16-bit accumulation counter |
| Maximum Frequency | 20 kHz per channel |
| Input Signal Types | NAMUR, 12 V, 24 V |
| Input Filtering | Configurable per channel |
| Redundancy Support | Single or redundant applications |
| Compatible Termination Units | TU810V1, TU812V1, TU814V1, TU830V1, TU833V1 |
| Operating Temperature | –20 deg C to +70 deg C |
| Storage Temperature | –40 deg C to +85 deg C |
| Weight | 0.7 kg |
| Country of Origin | Switzerland |
Frequently Asked Questions
Q: What functions can be assigned to the input channels on the DP840? A: Each of the 8 channels can be individually set up as a pulse counter, a frequency/speed measurement input, or a standard digital input.
Q: What is the maximum signal frequency supported per channel? A: The module supports input signal frequencies up to 20 kHz on each independent channel using a 16-bit counter.
Q: Which S800 module termination units can be used with the DP840? A: It is compatible with TU810V1, TU812V1, TU814V1, TU830V1, and TU833V1 termination units.