Dutec I/O Plexer, Руководство пользователя по оборудованию, Страница: 55 / 64

Appendix C
C-5
Addressing (See below for hardware setup)
Each I/O PLEXER contains up to 6 units, each with its own address; a two letter address
code; a two letter address code is shown for each instruction.; These indicate which of the 6
addresses are used; they are listed below:
MC Master unit control functions Factory setting 00Hex *
MD Master unit digital I/O functions Factory setting 40Hex *
MA Master unit analog I/O functions Factory setting 80Hex *
E1 1
st
digital expander functions Factory setting C0Hex *
E2 2
nd
Digital expander functions Factory setting D0Hex *
E3 3
rd
digital expander functions Factory setting E0Hex *
Some instructions have counterparts in more than one unit:
DD --This instruction exists for MD, E1, E2, E3
IO --This instruction exists for MD, MA, E1, E2, E3
AU --This instruction exists for MC, MD, MA, E1, E2, E3
LU --Applies to all units addressed in this I/O PLEXER, use MC
*See below for setup
Instruction response data fields
c,d,e Multiple position fields
Each module position maps to a digit in a 16 digit bit number.
Each digit or bit is a 1 or 0 only. This number is then converted to 4 digit numbers.
Each four numbers is converted into a hex digit.
For e leading hex zeroes can be omitted.
Module#: 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
-1 st Char- -2 nd Char- -3 rd Char- -4 th Char-
Bit pattern 0000 0001 0010 0011 0100 0101 0110 0111
Hex Digit: 0 1 2 3 4 5 6 7
Bit Pattern: 1000 1001 1010 1011 1100 1101 1110 1111
Hex Digit: 8 9 10 11 12 13 14 15
In all position fields, 1's specify which positions are affected and 0's are disregarded unless
they are listed below.
c,d,e
In instructions, 1's specify which positions are affected-
for setup m, analog, which outputs are set to specified values
for setup m, digital, which outputs are set to set ON
for setup G, to
IO , which modules are configured as outputs
for setup G, to MC , which modules are analog
for digital a, which input durations trigger on positive edges
for digital J, which modules are to be ON
for digital N, which outputs latch ON-to-OFF
for digital T, which start counting
In instructions, 0's specify which positions are affected or-
for setup G, which modules are configured as inputs
for setup H, I which modules are not to be configured
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