Omron CS1W-MCH71 -, Руководство по эксплуатации

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Overview
Section 7-1
Note (1) The total number of words (in a normal operation) when No. of motion
tasks = 1, No. of Axes = 1, and without custom area allocations
(2) The total number of words (in a normal operation) when No. of motion
tasks = 8, No. of Axes = 32, and all of general I/O are allocated
7-1-2 About I/O Refresh
CPU and MC Units exchange various data mentioned above (allocated bits,
allocated DM, custom bit area, etc.) with each other asynchronously. There-
fore, the following behaviors may be encountered.
When the CPU Unit's
Cycle Time is shorter than
the MC Unit's Unit Cycle Data will be notified to the MC Unit after the CPU Unit runs for several cycles.
Therefore, it is required to prepare the ladder program to confirm that data
has been notified from the CPU Unit to the MC Unit successfully.
Ex: Turn ON the origin search bit and then confirm that the busy flag of the
axis is turned ON.
When the CPU Unit’s
Cycle Time is longer than
the MC Unit’s Unit Cycle Data will be notified to the MC Unit after the CPU Unit runs for 1 cycle.
When the CPU Unit’s
Cycle Time and the MC
Unit’s Unit Cycle are
exactly the same There is a possibility that none of data is notified to the MC Unit. In this case,
set a longer or shorter Cycle Time for the CPU Unit.
7-1-3 Allocated Area List
Word Allocation Based on
the Unit Number The bit area and the range of respective DM areas are allocated based on the
unit number of the Unit.
CPU Bus Unit Allocated Bit Area Words
25 words are allocated for each Unit starting from the word 1500.
Custom I/O Area a_A Setting General I/O A General I/O 0 160
a_B Setting General I/O B General I/O 0 160
a_C Setting General I/O C General I/O 0 160
a_D Setting General I/O D General I/O 0 160
a_E Setting General I/O E General I/O 0 160
a_F Setting General I/O F General I/O 0 160
a_G Setting General I/O G General I/O 0 160
a_H Setting General I/O H General I/O 0 160
23 (See note
1.) 1551 (See
note 2.)
Area Brev-
ity
Direction Usage Remark No. of
words min.
No. of
words max.
Brevity
codes
Addresses in the CPU unit
n CPU Bus Unit allocated bit area
words Word 1500 – 1899
n = 1500 + 25
×
Unit Number
m CPU Bus Unit allocated DM
area words D30000 – D31599
m = 100
×
Unit Number
Unit Number Bit area Unit Number Bit area
0 Word 1500-1524 8 Word 1700-1724
1 Word 1525-1549 9 Word 1725-1749
2 Word 1550-1574 10 Word 1750-1774