User`s manual

4-16
4-5 I/O bus expansion adapter
I/O bus expansion adapter for the JW30H has two available models, the JW-31EA and the JW-32EA,
that are used to link signals sent from each rack panel. The JW-31EA is installed in the basic rack
panel JW-314KB/316KB/318KB, while the JW-32EA is installed in the expansion rack panel JW-34ZB/
36ZB/38ZB. The I/O expansion cable, JW-05EC/1EC/3EC/10EC/20EC/30EC/50EC, is used to connect
rack panels (install the I/O bus expansion adapter). (See page 6-18 for connection method of I/O
expansion cable).
I/O bus expansion adapter is used for the following cases:
1) In the case of using min. 5 racks (max. 8) on the rack panel
2) In the case of keeping a min. distance of 11 m (max. 50 m) between rack panels, or keeping a min.
distance of 15 m (max. 50 m) between the basic rack panel and the last expansion rack panel:
3) In the case of operating a high-speed data exchange (twice faster than without using I/O bus
expansion adapter) between an option module, such as JW-21CM and JW-22CM, and a control
module on a system that needs an expansion rack panel:
4) In the case of creating, changing, or monitoring a program on the expansion rack panel side using
a support tool (JW-300SP, JW-15PG).
JW-31EA
Rack 0
JW-32EA
Rack 1
Rack 2
Rack 3
Rack 7
Max. 8 racks on the rack panel
JW-32EA
JW-32EA
JW-32EA
Max. distance of 50 m between the rack panels
Max. 50m total cable length
JW-31EA
JW-32EA
JW-31EA
JW-32EA
JW-32EA
JW-32EA
JW-31EA
Option module
Control module
JW-32EA
High-speed data exchange
JW-31EA
JW-32EA JW-32EA
JW-32EA
JW-300SP