To communicate MELSEC-A Series (Ethernet Interface Unit) with the display, you need to set the ladder program of the External Device and the DIP switch of the Ethernet Interface Unit. Settings of the sample ladder program and the DIP switch are shown below.
Please refer to the manual of the External Device for more details.
LD |
M9038 |
|
DMOVP |
Hxxxxxxxx D100 |
: IP address of External Device*1 |
MOVP |
K0 D102 |
|
MOV |
H8000 D116 |
: Connecting method (TCP) |
MOV |
K1024 D124 |
: Port No. of External Device (in case of entering "1024" for example) |
DMOV |
Hxxxxxxxx D125 |
: IP address of display*1 |
DMOV |
HFFFFFFFF D128 |
|
MOV |
HFFFF D130 |
|
LD |
M9036 |
|
TOP |
H0000 H0000 D100 K50 |
|
LD |
X19 |
|
MOV |
K5 D113 |
|
TOP |
H0000 K13 D113 K1 |
|
LD |
M9036 |
|
OUT |
Y0019 |
: Initial request signal |
LD |
M9036 |
|
OUT |
Y0008 |
: Open request signal |
| END |
|
|
*1: xxxxxxxx shows IP address (in Hex). Check with a network administrator about IP address. Do not set the duplicate IP address.
:
Mode Setting Switch
Settings |
Setup Description |
|---|---|
0 |
On-line |
Communication Condition Setting Switch
DIP Switch |
Settings |
Setup Description |
SW1 |
OFF |
Selection of line processing at TCP timeout error |
SW2 |
OFF |
Data Code Setting |
SW3 |
ON |
CPU Communication Timing Settings |
SW4 |
OFF |
Initial Timing Settings |
Always turn OFF (binary code) the data code switch of the External Device.
When you write from the display during operation of the External Device, set to write enable.