Omron PROFINET NX-PNC202, Руководство пользователя

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9 Setting Up the PROFINET Coupler Unit
9 - 28
NX-series PROFINET Coupler Unit User’s Manual (W623)
• One block of mapped output data and one block of mapped input data are maintained in the
PROFINET Unit.
• Refer to
9-6 NX Unit IO Allocation
on page 9-27 for details about IO allocation and PROF-
INET Coupler Unit Status.
• Bit-sized NX Units (digital IO types, up to 8 points), e.g. NX-ID3317, NX-OC2633 are
grouped together in words. They are mapped from the right-most bit to the left-most bit.
• Word-sized NX Units (analog IO types) and 8 points or higher Bit-sized NX Units, e.g.
NX-AD2203, NX-DA203, NX-ID4342 (8 points Input), NX-OD5121 (16 points output) are
mapped in word units, from the low to the high word address.
• The combined total size of mapped input data can be up to 512 bytes.
• The combined total size of mapped output data can be up to 512 bytes.

IO Mapping Example
IO data is mapped to the PROFINET Coupler Unit’s IO data blocks in the same order the NX Units
are connected to the PROFINET Coupler Unit, regardless of the NX Units’ models.
The example below shows the IO data mapping to the Input / Output blocks.
The following example shows the mapping of NX Output Units.
Additional Information
• Refer to the appropriate NX-series User’s Manual for more information on NX Unit data allo-
cation sizes.
• Refer to 9-2 Setting IO Device Terminal Parameters on page 9-5 for more information about
status data configuration.
Word
15 8
0
Word
15 8
0
Some areas may be unused
when data is mapped.
Unused
First word Unused
Output area
Input area
#6 #5
#6 #5
#4 #3 #2 #1
PROFINET Coupler Unit Status
PROFINET
Coupler
Unit
NX-ID3317 NX-ID3317 NX-ID3317 NX-AD2203 NX-OD3121 NX-OC2633
#1
#4
#3 #2
+3
+1
+2
Word
Data is allocated in 2-bit units
to NX Units which require 4 bits.
There may be unused areas
as shown in the following table.
Unused
PROFINET IO Device Configuration
15
8
0
PROFINET
Coupler Unit NX-OD3121
#1
NX-OD3121
#2
NX-OD3121
#3
NX-OC2633
#4
NX-OD3121
#5
NX-DA2203
#6
+0
+1
+2
+3
#6
#4 #3 #2 #1 #5
#5