162
10 BUFFER MEMORY ACCESS
10.2 Intelligent Function Module
■Intelligent function module number of MELSECNET/H remote I/O station
Intelligent function module number of MELSECNET/H remote I/O station is the upper 2 digits of the last number represented
with 3-digit number of the following "Input/output signal based on the remote I/O station".
Specify this with "Input/output signal based on the remote I/O station" regardless of the contents of common parameters set in
the master station of MELSECNET/H remote I/O network.
Read data, write data
The read buffer memory value is stored for reading, and the data to be written is stored for writing.
This function reads/writes data in byte unit.
■Data communication in ASCII code
Handle a word data for one buffer memory address as 2-byte data.
Convert the value to 2-digit (hexadecimal) ASCII code per one byte, and send it from the upper digit.
■Data communication in binary code
Handle a word data for one buffer memory address as 2-byte data.
Send 2-byte numerical values from lower byte (L: bits 0 to 7).
When the data for one buffer memory address is 09C1H
When reading data from the following buffer memory addresses, 0H to 2H (additional value of the start address: 10000H)
ASCII code Binary code
Buffer memory Read 6 bytes from address 0H Read 4 bytes from address 1H
Address Stored data Start
address
Read data (byte unit) Start
address
Read data (byte unit)
Word unit Byte unit ASCII code Binary code ASCII code Binary code
0H 0003H 03H 10000H 30H, 33H 03H
00H 30H, 30H 00H
1H 0001H 01H 30H, 31H 01H 10002H 30H, 31H 01H
00H 30H, 30H 00H 30H, 30H 00H
2H 0012H 12H 31H, 32H 12H 31H, 32H 12H
00H 30H, 30H 00H 30H, 30H 00H
AJ72
LP25
Intelligent function module No. "04H"
Input/output signal
based on the remote I/O station
Output
module
Intelligent
function
module
Output
module
Power supply
module
Output
module
Output
module
Remote I/O station,
station 1
32 points 32 points 32 points16 points 16 points
Input/output signal
by common parameters
Y
00 to
1F
Y
20 to
2F
X/Y
30 to
4F
Y
50 to
6F
Y
70 to
8F
Y
400 to
41F
Y
420 to
42F
X/Y
430 to
44F
Y
450 to
46F
Y
470 to
48F