PC/104 Counter/interface Card
Description
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REVISIONS
NO 1 VERSION 1.
0 APPROVED 2000-09-18
Data Sheet
MMI200-PC/104
Encoder Interface Board SSI
(Bi-directional interface for absolute encoders according to the specification of DR.
J.
HEIDENHAIN GmbH) (Unidirectional interface for absolute encoders)
square wave incremental signals
(TTL-interface for incremental encoders with a 32 bit encoder counter)
Table of contents
1 GENERAL DESCRIPTION
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2 3 4
4 4 4 5
2 ISA INTERFACE 3 REGISTER DESCRIPTION
3.
1 3.
2 3.
3 3.
4 On-board command register Optical coupler input register On-board interrupt enable register MMI4832 registers
DataShee
4 OPTICAL COUPLER
4.
1 4.
2 Optical coupler inputs Optical coupler outputs
6
6 7
5 MEASUREMENT SYSTEM INTERFACE 6 BOARD DESIGN MECHANICS 7 ELECTRICAL SPECIFICATIONS
7.
1 7.
2 7.
3 Absolute Maximum ratings Recommended operating conditions Electrical characteristics Approvals
Compiled: Checked: Released:
8 10 10
10 10 11
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Date
2000-09-18 2000-09-18 2000-09-18 Status: valid
MAZeT GmbH
DOC.
NO: DB-99-064e
Page 1 of 11
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REVISIONS
NO 1
1
DATA SHEET MMI200-PC/104
VERSION 1.
0
APPROVED 2000-09-18
1
General description
The MIP200-PC/104 board comprises two measurement channels for data acquisition.
It is used as an interface board for EnDat, SSI or incremental encoders.
A timer is available in all operational modes (i.
e.
EnDat, SSI, incremental).
The timer can be used to generate a hardware strobe for equidistant data sampling by defini...
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