The Model 5312B Encoder Interface

The Model 5312 offers an affordable solution for PC- based applications needing encoder data acquisition.

Inputs on the 5312B may be single-ended or differential and are conditioned by a four-phase digital filter. Power (+5V) and grounding connections are provided for encoder use. Five jumper-selectable filter clock frequencies, ranging up to 10 MHz, are also available. Noise immunity may be maximized by selecting the lowest frequency that's compatible with the highest input rate expected.

The board applies the signal inputs to a 24-bit decoder/counter with programmable modes. The counter may be used either for quadrature decoding or as a counter for pulse and direction or count up/down inputs. Counters may be cascaded in 24-bit groups. The counters are independent, but may be initialized simultaneously by issuing commands to a single port. When an index pulse occurs, the count may be latched or a new count value may be loaded.

The 5312B's design reflects ACS-Tech80's commitment to open architecture design philosophy. With its industry-standard language support, library-based programming offers far more flexibility for OEM applications and throughput isn't slowed by lengthy ASCII command transfers. Motion specific function calls enhance standard languages, which enable ease of programming. 16-Bit and 32-bit libraries with C, C++ and Visual Basic examples are provided. LabVIEW and Windows NT drivers are also available.

ACS-Tech80, 7351 Kirkwood Lane North, Maple Grove, MN 55369. Tel: 763-542-9545; Fax: 763-542-9785.