Hitachi EH-150 Series Applications Manual page 60

Chapter6 Communication Mode
 Sample program [ Initial setting + Data receiving ]
(1) Ladder program
[EH-CPU]
R7E3
R7E3
R7E3 DIF0
X2113
1
<=
WX212
...
WR7 = H0000
Initial setting command
...
WR8 = 200
Command timeout time
WR9 = H000A
I/O address of sending data area
WRA = H0100
( WR100 )
WRB = H000A
I/O address of receiving data area
WRC = H0200
( WR200 )
WRD = H0400 ...
Size of receiving data area
WR100 = H000E ...
No. of send data (byte)
WR101 = H0000 ...
Communication mode
WR102 = H0100 ...
Message composition, etc.
WR103 = H0000 ...
Start character
WR104 = H0DFF ...
Stop character
WR105 = H0000 ...
Check code calculation type
...
WR106 = 200
Receiving timeout time
WR107 = H0000 ...
Data interval time
TRNS 9 ( WY214 , WR0 , M0 )
DIF1
WR7 = H0010 ...
Data receive command
M0 = 1
6 - 18
s parameter
Sending data area
(parameter for initial
setting)
TRNS 9 command
M0
S
For initial setting
Data receive command set Data receive command set
TRNS 9 command start TRNS 9 command start