Fuji Electric MICREX-SX series SPF - I;O Address Assignment; Rules for Assigning I;O Addresses

2-8
Section 2 System Conguration
2-3 I/O address assignment
2-3-1 Rules for assigning I/O addresses
In MICREX-SX series SPF, follow the rules below to assign I/O addresses.
1) Unit No.
A number (1 to 6) is assigned to SPF expansion right side units, in their connected order. The number assigned to the main unit
is always “0” (zero). The front board is assigned “100” (xed) as an independent unit and the expansion left side unit with “200”
(xed).
<Example of unit No. assignment>
｛
Input:
Output:
Identifier
Unit No. Word No.
Bit address
(0 to F)
Period
<For Standard>
<For Expert (D300win)>
X (bit), WX (word), DX (double-word)
Y (bit), WY (word), DY (double-word)
｛
Input:
Output:
Prefix
Unit No. Word No.
Bit address
(0 to 15)
Period
Period
%IX (bit), %IW (word), %ID (double-word)
%QX (bit), %QW (word), %QD (double-word)
Expansion
left side unit
Unit No. 200
Expansion
right side unit
Unit No. 3
Expansion
right side unit
Unit No. 2
Expansion
right side unit
Unit No. 1
Main unit
Unit No. 0
Front board
Unit No. 100
2) Word No. and bit address
To each SPF unit, words starting from the word 0 (zero) are assigned for the number of words that the unit occupies. No same
word is assigned to both input and output. Therefore, for main unit and expansion units with both inputs and outputs, words are
assigned rst to inputs and then to outputs. All types of main units (regardless of the No. of I/O points provided) occupy eight
words of the I/O area (input: four words, output: four words).