Delta AH500 series, Hardware Operation Manual

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A H 5 0 0 H a r d w a r e a n d O p e r a t i o n M a n u a l
11 - 2 2

Completion of reading: The master station finishes reading data form a slave station

Completion of writing: The master station finishes writing data into a slave station.
Additional remark:
If the reading of data and the writing of data are synchronous, the related flags will be controlled in the
ways described below.
Read error Write error
Completion
of reading
Completion
of writing
The master station stops reading
data and writing data
simultaneously, or the master
station is reading data and writing
data simultaneously.
OFF OFF OFF OFF
The master station finishes reading
data and writing data
simultaneously.
OFF OFF ON ON
Timeout ON ON OFF OFF
The master station can not produce
a packet which will be sent.
ON ON OFF OFF
The data sent by a slave station can
not be stored in the master station.
ON OFF OFF ON
3. Description of the setting of the parameters related to a PLC Link:
The setting of the parameters related to a PLC Link is described below. (Suppose the master station and
slave station 1 are AHCPU530-EN.) The data in the device addresses starting from D100 in slave station 1
is read into the device address starting from D9 in the master station. The number of data read from slave
station 1 is 10. The data in the device addresses starting from Y0.0 in the master station is written into the
device addresses starting from Y2.0 in slave station 1. The number of written into slave station 1 is 5. The
slave station type is AHCPU530-EN (16#E001). The slave station address is 16#0001.
Item Reading/Writing Device code Value
Start address in the
master station
Reading
SR1404 16#0000
SR1405 16#0009
Writing
SR1468 16#0000
SR1469 16#A000
Start address in slave
station 1
Reading
SR1532 16#0000
SR1533 16#0064
Writing
SR1596 16#0000
SR1597 16#A020
Number of data read
from slave station 1
Reading SR1660 16#000A
Number of data
written into slave
station 1
Writing SR1692 16#0005
Slave station type
Reading
SR1724 16#E001
Writing
Slave station address
Reading
SR1756 16#0001
Writing
Device type
Reading SR1340 16#0000
Writing SR1372 16#0001
Additional remark:
There are a variety of Delta PLCs. Users can construct a PLC Link by connecting AH500 series CPU
modules to DVP series PLCs, and other models. Consequently, there are limitations on the devices which
can be used, the data exchange which can be performed, and the number of data which can be
exchanged.