Ethernet Communication Module DVPEN01-SL
DVP-PLC Operation Manual
27
5.6 Data Exchange
DVPEN01-SL is able to designate a data exchange area for PLC MPUs to exchange and synchronize their data.
Setting data exchange
1.
Enable Data Exchange
Check/uncheck the station addresses to enable/disable data exchange. The station address can be
selected individually. For example check Station Address 1 to enable the data exchange and uncheck the
Station Address 2 to disable the data exchange as the the image shown below. This can also be achieved
by setting up CR20~21. Please refere to chapter 4.2 in this manual for more information.
2.
Enable Condition
You can select
Always Enable
or
Program Control
. If
Always Enable
is selected, DVPEN01-SL will
execute data exchange continuously until the setting in DCISoft is changed. If
Program Control
is
selected, DVPEN01-SL will execute data exchange according to the program setting (CR#13=2: Executing
data exchange; CR#13=0: Stopping executing data exchange).
3.
Station Address
and
IP Address
You have to enter the IP address of DVPEN01-SL at the other end. For example, if you would like
DVPEN01-SL to exchange data with 192.168.0.1, set No. 1 as 192.168.0.1. When the data are being
exchanged, if the value in CR#28 is H’0001, the data will be exchanged with 192.168.0.1.
4.
Master Device
,
Slave Device
, and
Quantity
.
Reading (
): Start address of the master’s receiving register
Start address of the slave’s sending register
Writing (
): Start address of the master’s sending register
Start address of the slave’s receiving register
When data exchange is executed, DVPEN01-SL executes the writing (
) first before the reading (
).
Quantity: A slave is able to send and receive the data in 100 consecutive registers at the same time.
For data exchange, D register is parted into 2 sections, D0000~D4095 and D4096~D9999. Please DO
NOT use different sections for the consecutive sent and received data (start a number of data).
5. See section 6.9~section 6.11 for more details.
