Mitsubishi A1SJ71PB92D, Руководство пользователя, Страница: 54 / 98

4. FUNCTIONS MELSEC-A
4-27
(12) I/O start address area (Extended service mode only)
This area stores the start addresses of I/O areas for each slave station.
Address
Input start address for 1st station
2128
2129
2130
2187
2188
2189
2245
IN
P
U
T
OUT
P
U
T
2185
2186
b15
b0
2190
Input start address for 2nd station
Input start address for 3rd station
Input start address for 58th station
Input start address for 59th station
Input start address for 60th station
Output start address for 1st station
Output start address for 2nd station
Output start address for 3rd station
Output start address for 58th station
Output start address for 59th station
Output start address for 60th station
2246
2247
•
This area is used while in the extended
service mode (MODE switch: No. E) only.
When in the normal service mode (MODE
switch: No. 0), 0 is stored in all areas.
•
Data is set in this area during module startup
according to the parameters stored in the
master station.
•
The start address is set in 1 word units for
both input and output. The data range is from
0 to 1919 (0 to 77Fh).
•
The start addresses are stored in the INPUT
area, starting from the head.
•
When nothing is assigned, -1 (FFFFh) will be
set.
Example: When the input byte length and
output byte length for the first station
are 3 bytes and 5 bytes, and those
for the second station are 7 bytes
and 3 bytes, respectively:
Address 2128 : 0 (0h)
Address 2129 : 2 (2h)
Address 2188 : 960 (3C0h)
Address 2189 : 963 (3C3h)
•
Input area
Address
0 1st station 2nd input byte 1st station 1st input byte
1 1st station 3rd input byte
2 2nd station 2nd input byte 2nd station 1st input byte
3 2nd station 4th input byte 2nd station 3rd input byte
4 2nd station 6th input byte 2nd station 5th input byte
5 2nd station 7th input byte
•
Output area
Address
960 1st station 2nd output byte 1st station 1st output byte
961 1st station 4th output byte 1st station 3rd output byte
962 1st station 5th output byte
963 2nd station 2nd output byte 2nd station 1st output byte
964 2nd station 3rd output byte
Input start address
Output start address