BEI Sensors MHK5 Absolute Hollow Shaft Encoder - Manual (Page 4)

DEVICE NET USER MANUAL
Page 4 UME-OCD-D2 Version 05/04
BEI IDEACOD SAS
Espace Européen de l’Entreprise
9, rue de Copenhague
B.P. 70044 Schiltigheim
F 67013 Strasbourg Cedex
Tél : +33 (0)3 88 20 80 80
Fax : +33 (0)3 88 20 87 87
Mail : [email protected]
Web : www.bei-ideacod.com
1. Introduction
Absolute rotary encoders provide a definite
value for every possible position. All these val-
ues are reflected on one or more code discs.
The beams of infrared LEDs are sent through
code discs and detected by Opto-Arrays. The
output signals are electronically amplified and
the resulting value is transferred to the inter-
face.
The absolute rotary encoder has a maximum
resolution of 65536 steps per revolution (16 Bit).
The Multi-Turn version can detect up to 16384
revolutions (14 Bit). Therefore the largest result-
ing resolution is 30 Bit = 1.073.741.824 steps.
The standard Single-Turn version has 12 Bit, the
standard Multi-Turn version 24 Bit. The integrated CAN-Bus interface of the abso-
lute rotary encoder supports all of the De-
viceNet functions. The following modes can
be programmed and enabled or disabled:
-
Polled Mode
-
Change of State
The protocol supports the programming of the
following additional functions:
Code sequence (Complement)
Resolution per revolution
Total resolution
Preset value
The general use of absolute rotary encoders
with DeviceNet interface is guaranteed.