Beckhoff M2510 Uživatelský manuál stáhnout pdf (Strana 5)

M2510 Analog Input Beckhoff II/O Lightbus System

Date: 20.08.93 Version : 2.0 Page 5 of 11

2. Function Description - Software

The 4 ADCs work in stand alone mode. They are triggered by the 'CYCLE' signal, when the

telegram is received.

When the twelve bit of data are read, the transformation result of the previous cycle is used.

There is no need for selection or other communications, since all control signals needed are

created by the hardware.

As there are always 2 ADCs read in a 32 bit telegram, two addresses in the II/O system have

to be reserved for the whole module.

II/O Lightbus

Address 1

ADC 2 ADC 1

Port D3 Port D2 Port D1 Port D0

LSB

DDDD DDDD DDDD DDDD

MSB

xxxx DDDD xxxx DDDD

II/O Lightbus

Address 2

ADC 4 ADC 3

Port D3 Port D2 Port D1 Port D0

LSB

DDDD DDDD DDDD DDDD

MSB

xxxx DDDD xxxx DDDD

1 2 3 4 5 6 7 8 9 10 11

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