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The Allen-Bradley 1746-HSCE2 is a SLC 500 High-Speed Counter Module. This High-Speed Counter Module has 4 Single-Ended and 2 Differential Quadrature Inputs and 4 Outputs with an Input Frequency of 1 Megahertz and a 1746-RT25G I/O Connection.
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The Allen-Bradley 1746-HSCE2 is a Multi-Channel High-Speed Counter. The Controller offers a set of two ±A, ±B, and ±Z input channels and it supports three operating modes that allow two, three, or four-channel operation. These provide a track for two quadratures, a differential line driver, or for incremental encoders. The input channels A and B are configurable to count single-ended pulse for up to 4 input devices. The module features a capacity to control adjustments when actively counting pulses. This allows greater reliability. The Z input channel handles the storing, holding, and resetting of the counter data. When using a low-frequency input signal, the 1746-HSCE2 may accept false pulses. To avoid high-frequency noise on low-frequency signals, the user should remove the noise with the 1746-HSCE2 input cable to lead the current away from noise sources. In case of short circuit or overloaded current, the 1746-HSCE2 has a protection that is thermal cut-out based. This serves as a limit that will turn off all channels within milliseconds when the thermal cut-out temperature is reached.
The 1746-HSCE2 is compatible with all SLC 500 CPU modules. The counter capability extends to 24 bits (±8,388,607) with operating class 1 or 4. The input voltage ranges from 4.2-30V DC and output current to 1 Ampere. Input frequency response reaches to 1 M Hz and 0.7-1.6 ms back-plane response time. It is a self-determined rate of periods with no sequence mode and has 16 ranges to count/rate modes. The controller has a 1 preset input for Counters 1 and 2 only but no preset input for Counters 3 and 4. The controller’s isolation voltage is tested to withstand at 1000 V. The back-place current at 5 V is 250 mA and 0 mA at 24 V with a throughput of 700μs typical. It also has a maximum and minimum thermal dissipation of 1.25 W.
High-Speed Counter Module
4 Single-Ended and 2 Differential Quadrature
Backplane Current (5 Volts):
100 milliseconds in, 2.5 milliseconds out
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https://i2.wp.com/www.aotewell.com/wp-content/uploads/2017/11/SAM_9931-6.jpg?fit=3888%2C2592&ssl=125923888David Chonghttps://www.aotewell.com/wp-content/uploads/2017/03/aotewell.net-logo4.pngDavid Chong2017-11-27 17:43:012017-11-27 17:43:01Allen-Bradley MicroLogix 1400 1766-L32AWAA with (20) Digital 120V AC