Mitsubishi MELSEC-A AJ71PT3 User Manual page 63

5. PROGRAMMING
(4) Input faulty station detection (address 599)
(a) Stores the 110 refresh states of the partial refresh type
remote 110 stations. 1 indicates that the input data could
not been read within the given period of time.
(b) The buffer memory stores the following data. The error
data locations for individual stations depend on the partial
refresh station setting.
blS b14 b13 b12 bl1 bl0 b9 b8 h7 b6 h5 b4 b3 b2 bl bO
•
1: Error
0: Normal
t t
t
1/0
refresh state of station set to address 250
~
I/O refresh state of station set to address 252
110 refresh state of station set to address 254
I/O refresh state of station set to address 278
1/0 refresh state of station set to address 280
(5) Receive data for partial refresh (addresses 600 to 855)
(a) ONIOFF data input from the partial refresh type remote 110
units.
(b) The buffer memory assignment depends on the partial
refresh station number and the number of digits specified.
For further information, see Section 5.4.2.
Address
8 5 5 E : = = 1
Stores data input from the 1st digit of
600
f---~---~
the station specified at address 250.
Stores data input to the 2nd digit of the
601
t::::::::::::::::----j
station specified at address 250.
•
(c) Partial refresh receive data has 16 bit locations per digit as
shown below:
h15 h14 b13 h12 bl1 blO b9 b8 b7 b6 b5 b4 b3 h2 bl bO
1: ON
2: OFF
-n
depends on the set number
of digits.
n=O for the
tst
digit
n=l for the 2nd digit
•
5-8