User`s manual

10-12
Data link DL1 (master station) function
10
[4] How to make synchronize
In order to securely transfer data between a master station and a slave station, we recommend to syn-
chronous these stations.
(1) Synchronous with OUT instruction
ｺ1000
ｺ1010
ｺ0200
ｺ0210
Sending
Receiving
Sending station program
00000
10000
10100
10000
02000
02100
Master station
(JW-32CUM1)
Salve station 01
Salve station 02 ---
- Turn ON 00000 at the sending station. OUT 10000 shall be self latch circuit.
- When 02000 of the receiving station turns ON, it turns ON OUT 02100. Return this signal to the
sending station.
Remarks
As shown in the figure below, a signal which turns ON shorter time for the communication cycle may
not be transferred.
00000 F-44
10000
(2) n byte transfer
To make synchronous for all the data, add the synchronous signal at the head and the end of data
area.
[Example] To transfer ｺ1001 to ｺ1002, add 10000 and 10030 as synchronous signal.
ｺ1000
ｺ1003
ｺ0200
ｺ0203
Synchronous signal Synchronous signal
Data transfer
Synchronous
signal 10000
Synchronous
signal 10030
Synchronous
signal
F00
F00
ｺ0201
ｺ0400
ｺ0202 ｺ0401
F00
F00
ｺ0400
ｺ0401
ｺ1001
ｺ1002
00000
02000 02030