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11-7
Slave station 01
(8)
(Data memory)
Master station 00
(8)
(Data memory)
Register link area
(Within a total of 2048 bytes)
Relay link area
(Within a total of 256 bytes)
bytes bytes bytes
Flag
area
Slave station n
(Data memory)
[2] Communication area map
(1) In case that setting data link (the standard function) when the master station and all slave
stations are JW-21MN's.
: Send
: Receive
- Set the relay link area, register link area, flag area within the setting range nominated in page 11-
11, 12 and 23. However, be careful not to double any address allocation of these.
- Set a0 to en for parameters of master station and slave station. (See page 11-5, 6 and 22)
Parameter for setting in slave station
Top address of flag area (slave station) e1 to en
Parameter for setting in master station
Top address of relay link area a0, a1 to an
Top address of register link area b0, b1 to bn
Number of sending bytes of relay link area
c0, c1 to cn
Number of sending bytes of register link area
d0, d1 to dn
T
op address of flag area (master station) e
0
.
- Total number of sending bytes per station both relay link and register link is max. 1024 bytes.
c0+d0, c1+d1, cn+dn = 0 to 1024 bytes.