ADLINK Technology PCI-8132, Руководство пользователя

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Operation Theorem
The encoder error interrupt is provided to detect abnormal situation.
Simultaneously changing of EA and EB signals will cause an encoder error.
If bit #14 of the interrupt factor register (INT factor) is set as 1, the IRQ will
be generated when detect encoder error during operation.
The index inputs (EZ) signals of the encoders are used as the “ZERO”
index. This signal is common on most of the rotational motors. EZ can
be used to define the absolute position of the mechanism. The input
logic polarity of the EZ signals is programmable by software function
_8132_ set_home_config(). The EZ signa ls status of the four axis can be
monitored by _8132_ get_io_status() .
♦
Relative Function:
_8132_set_cnt_src(),_8132_set_pls_iptmode(): Refer to section 6.4
4.5 Multiple PCI-8132 Cards Operation
The software fuction library support maximum up to 12 PCI-8132 Cards,
that means maximum up to 24 axes of motors can be controlled. Since
PCI-8132 has the characteristic of Plug-and-Play, users do not have to
care about setting the Based address and IRQ level of cards. They are
automatically assigned by the BIOS of system when booting up. Users
can utilize Motion Creator to check if the plugged PCI-8132 cards are
successfully installed and see the Baseaddress and IRQ level assigned by
BIOS.
One thing needed to be noticed by users is to identify the card number of
PCI-8132 when multiple cards are applied. The card number of one
PCI-8132 depends on the locations on the PCI slots. They are numbered
either from left to right or right to left on the PCI slots. These card numbers
will effect the corresponding axis number on the cards. And the axis
number is the first argument for most funcions called in the library. So it
is important to identify the axis number before writing application
programs. For example, if 3 PCI-8132 cards are plugged in the PCI slots.
Then the corresponding axis number on each card will be:
Axis No.
Card No.
Axis 1 Axis 2
1 0 1
2 2 3
3 4 5