Hitachi EH-150 Series Applications Manual page 61

[EHV-CPU]
R7E3
R7E3
R7E3 DIF
X2113 DIF
1
<=
WX212
Reference : Refresh of Input / Output data
Since the I/O processing system of EH-150 is refreshment processing, the data of X and Y is usually refreshed at a
scanning end. (In the case of the above program, it becomes a scanning end that X2113 and WX212 change.)
EH-150 is supporting the command refreshed for I/O data (FUN 80 – FUN 82) also in the middle of scan. Please
describe, just before referring to X and WX if needed.
...
WR7 = H0000
Initial setting command
...
WR8 = 200
Command timeout time
DR9 =ADR(WR100) ...
I/O address of sending data area
( WR100 )
DRB = ADR(WR200) ...
I/O address of receiving data area
( 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 )
...
WR7 = H0010
Data receive command
M0 = 1
6 - 19
Chapter6 Communication Mode
s parameter
Sending data area
(Parameter for initial
setting)
TRNS 9 command
M0
S
For initial setting
Data receive command set
TRNS 9 command start