User`s manual
11-1
Data link DL9 (master station) function
11
Chapter 11: Data link DL9 (Master Station) Function
11-1 Data link DL9 (master station) function
When the general purpose communication section in the JW-32CUM1 is used for data link DL9
(master station), it can communicate with slave stations of JW and W series PLC.
PG/COMM1
PG/COMM2
L1
L2
SHLD
FG
DN
-
MCM
-
MCU
FLT
CM1
CM2
SCAN
OFF
ON
LT
PULL
JW30H
JW-21CM (slave station)
JW30H
JW70H
JW-10CM
(slave station)
Max. of 15
slave stations
JW-32CUM1
(master station)
Shielded-twist pair cable Total length max. 1 km 153.6 kbits/s
Item Specifications
Model name of slave stations
JW-21CM (JW20H/JW30H)
JW-10CM (JW50H/70H/100H, JW50/70/100, W70H/100H)
ZW-10CM (JW50/70/100, W70H/100H),
Z-331J/332J (J-board),
ZW-1K0DL9 (W100), ZW-501DL9 (W51), ZW-160DL9 (W16)
Number of connectable slave
stations
Max. 15 stations
Number of link bytes (total) Select the number of bytes: 64, 128, or 256
No. of link bytes per station
Divide evenly from the number of slave stations
(1 station: Max. 128 bytes, 2 stations: Max. 64 bytes, 3 to 4
stations: Max. 32 bytes, 5 to 8 stations: Max. 16 bytes, 9 to 15
stations: Max. 8 bytes)
- This link offers communication between a master and a slave station. It cannot perform
communication between 2 slave stations (1:N method).
- The possible number of connectable slave stations is 15 at max.
- Total length of the signal cable is up to 1 km.
- Select the number of link bytes: 64, 128, or 256 (total for the system).
Remarks
- The data memory area for data link DL9 in the JW-32CUM1 (as a master station) is fixed (module
No. switch = 0). - See pages 11-4 and 11-6.
Therefore, set the module No. switch on the option modules (such as JW-22CM) that are installed
on the JW-34KBM (JW-32CUM1) to a number other than "0."
- Number of link bytes per station varies depending on the combination of number of total bytes and
the number of stations. - See pages 11-6.
- When you specify the total number of link bytes as 128 or 256, some module numbers cannot be
used.
[Ex.] When the total number of link bytes is specified as 256;
The data link area will be ｺ1000 to ｺ1377, and the module number switches on option
modules cannot be set to numbers "1 to 3."