Omron NT-DRT21, Руководство по эксплуатации

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6-3 Section Allocating PT Memory to the Host (Master)
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6-3-2 Allocating Input and Output Areas to the Master
The DeviceNet Interface Unit’s input and output areas are allocated to the Unit
as a DeviceNet Slave in the Master’s I/O memory.
With fixed allocation, words in the CPU Unit are allocated in the order of node
numbers starting from node 00. The words are divided into an output area and
an input area. The specific words that are allocated depend on the model of PC
that is being used.
CIO 1900
CIO 1963
CIO 2000
CIO 2063
Output
area
Input
area
CIO 1900 Node 0
CIO 1901 Node 1
CIO 1962 Node 62
CIO 1963 Node 63
CIO 2000 Node 0
CIO 2001 Node 1
CIO 2064 Node 62
CIO 2063 Node 63
IR 50
IR 81
IR 350
IR 381
Output
area
Input
area
IR 50 Node 0
IR 51 Node 1
IR 80 Node 30
IR 81 Node 31
IR 350 Node 0
IR 351 Node 1
IR 380 Node 30
IR 381 Node 31
To Slaves
From Slaves
To Slaves
From Slaves
IR 50
IR 99
IR 350
IR 399
Output
area
Input
area
IR 50 Node 0
IR 51 Node 1
IR 98 Node 48
IR 99 Node 49
IR 350 Node 0
IR 351 Node 1
IR 398 Node 48
IR 399 Node 49
To Slaves
From Slaves
CVM1/CV-series PCs CS1-series PCs
C200HS PCs
IR 50
IR 99
IR 350
IR 399
Output
area
Input
area
IR 50 Node 0
IR 51 Node 1
IR 98 Node 48
IR 99 Node 49
IR 350 Node 0
IR 351 Node 1
IR 398 Node 48
IR 399 Node 49
To Slaves
From Slaves
C200HX/HG/HE PCs
The DeviceNet Interface Unit will occupy the number of words (number of node
numbers) set for the input and output areas in the DeviceNet memory switch
screen. For example, when the Unit’s input area size has been set to 16 words,
the output area size has been set to 10 words, and the node number is set to 5,
the input area will occupy the words for nodes 5 through 20 and the output area
will occupy the words for nodes 5 through 14.
Note With the CS1 Series, the DeviceNet Output Area (CIO 0050 to CIO 0099) is con-
tained inside the I/O Area (CIO 0000 to CIO 0319). For this reason, in systems
with a large number of I/O points, edit the I/O table with the CX-programmer so
that there is no overlap of area allocation.
Each node address is allocated one input and one output word. If a Slave re-
quires more than one input or one output word, then it is assigned more than one
node address. If a Slave requires less than one word, it simply uses the right-
most bits in the word allocated to it.
Fixed Allocation