Specifications

2 - 23
Open status
Open read
y
status
(
closed
)
Closed status
Initial normal completion X19
OPEN instruction
OPEN instruction complete device
OPEN instruction complete device + 1
CLOSE instruction
CLOSE instruction complete device
CLOSE instruction complete device + 1
Open completion signal
(Address: 5000
H
)
Power-on
Parameter
communication
completed
One scan
One scan
1)
2)
3)
4)
6)
7)
5)
Internal
processing
Internal
processing
Number Description
1)
After parameter communication, confirm normal completion of the Ethernet module initial processing.
(Initial normal completion signal (X19): ON)
2)
Start the open processing using the dedicated instruction, OPEN.
(Open request signal (address: 5002
H … b0): ON)
3) The Ethernet module executes the open processing. (Internal processing only)
4)
When the open processing completes normally
Open completion signal (address: 5000
H ... b0) turns on. Data communication is enabled.
When the open processing completes abnormally
Confirm "Complete status" stored in the control data of the OPEN instruction and perform the recovery processing.
5) Start the close processing using the dedicated instruction, CLOSE. (Open request signal: OFF)
6) The close processing is executed. (Internal processing only)
7) Open completion signal turns OFF.