CPU ADAM 821x
Chapter 4 Deployment of the CPU 821xNET
ADAM 8000 Manual CPU 821x – Rev 1.1
4-31
Communication links to foreign systems
The organization format is the abbreviated description of a data source or a
data destination in a PLC environment. The following table lists the
available ORG formats.
In the case of READ and WRITE the ORG block is optional.
The ERW identifier is used for the addressing of data blocks. In this case
the data block number is entered into this identifier. The start address and
quantity provide the address for the memory area and they are stored in
HIGH/LOW format (Motorola-formatted addresses)
Description
Type
Range
ORG identifier
BYTE
1..x
ERW identifier
BYTE
1..255
Start address
HILOWORD
0..y
Quantity HILOWORD
1..z
The following table contains a list of available ORG formats:
ORG identifier 01h-04h
CPU area
DB
MB
EB
AB
ORG identifier
01h
02h
03h
04h
Description Source/destination
data
from/into data block in
main memory.
source/destination data
from/into flag area.
Source/destination
data from/into process
image of the inputs
(PAE).
source/destination data
from/into process
image of the outputs
(PAA).
DBNR
valid range:
DB from where the
source data is retrieved
or to where the
destination data is trans-
ferred.
1...255
irrelevant irrelevant irrelevant
Start address
Significance
valid range:
DB-No. from where the
data is retrieved or
where data is saved.
0...2047
MB- No. from where
the data is retrieved or
where data is saved.
0...255
EB-No. from where the
data is retrieved or
where data is saved.
0...127
AB-No. from where the
data is retrieved or
where data is saved.
0...127
Quantity
Significance
valid range:
Length of the
source/destination data -
block in words.
1...2048
Length of the
source/destination data
block in words.
1...256
Length of the
source/destination data
block in words.
1...128
Length of the
source/destination data
block in words.
1...128
ORG format
