User`s manual

11-3
Data link DL9 (master station) function
11
[2] Communication contents of data link DL9
The JW-32CUM1 can transfer 2 to 128 bytes of data memory content of PC from a master (JW-32CUM1)
to a slave station or a slave to a master station.
[Example] When a master station (JW-32CUM1) sends 2 bytes of data memory ｺ1000 to ｺ1001 to a
ｺ1100 to ｺ1101 of a slave station, the slave station PC can use the 2 bytes of data
memory at ｺ1100 to ｺ1101 as an input signal.
Master station (JW30H: JW-32CUM1)
Slave station 01 (JW20H)
ｺ1000
ｺ1001
ｺ1002
ｺ1003
ｺ1004
ｺ1100
ｺ1101
ｺ1102
ｺ1103
ｺ1104
○ means sending.
● means receiving.
Master station program Slave station 01 program
10000
10001
10002
10015
10016
10017
00000
10027
11000
11010
11011
11012
11027
11001
11002
Remarks
- Write the link relay of the sending station as an OUT instruction in PC program. The link relay of
the sending station is usable as a D (destination) side of the application instruction.
- Write the link relay of the receiving station as an input signal in PC program. The link relay is
usable as the S (source) side of the application instruction.
- Sending data and receiving data correspond to 1 point unit bit.
76543210
ｺ1000
76543210
ｺ1002
76543210
ｺ1100
76543210
ｺ1102
Becomes the same value as ｺ1102
slave station.
Becomes the same value as ｺ1000
master station.
- For details about the number of link bytes and the link area for each station, see page 11-6.