Data Acquisition and Control

IP-EC-8513 Incremental Encoder Counter

The Hytec IP-EC-8513 is a single-width Industry Pack that caters for four quadrature output incremental encoders. The signals Phase A, Phase B and Index from each of the four encoders are connected as TTL inputs at the I/O connector and operate on four 32 bit up/down counters which can be read or overwritten at any time. The maximum counting rate is 10MHz.

 A companion unit, the 8906 DIN-rail mounted interface block can be used with this IP card (together with a suitable transition board) to provide RS-422 conversion for the encoder signals which then connect through individual D-type connectors to the plant.

An EPICs driver is available for this card.

The 8513 is a firmware variant of the IP-SC-8512 and has the following features :- 

• 4 independent preset up/down counters

• Full 32 bits binary count capacity

• Each counter channel can count up/down from a pre loaded value

• Count rates from D.C. to 10MHz

• An ARM register allows individual channels to be enabled or inhibited

• Maskable interrupt generated by each channel on encoder index pulse

• Counter external inputs via transition board

• Counters can be read on the fly via a shadow register

• The ability to read the module identity, manufacturer, model, revisions and serial number from an onboard ID ROM.

View the full specification in .pdf format at IP-EC-8513

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