56 model 3000 Ethernet Module / DS Connection Module Operation Manual
Chapter 4 Installation and Wiring
4
(5) It is necessary that network parameters are downloaded, when [Setting from Tool] is 
used or multicast address setting is done. Download the parameters with connecting 
Engineering Tool to serial communication port (Tool) of EN7 module. (Download form 
Ethernet is not possible before downloading the parameters.)
(6) After downloading, switch off the base unit connected EN7 module again.
(7) Confirming the base unit’s power is off, connect cables.
Figure 4-10 Replacing 10BASE2 Modules (EN731, EN741)
Turn T-adapter ring 
counterclockwise and 
remove T-adapter.
Do not disconnect 3D-2V 
cable from T-adapter.
Remove it after checking
EN7 module
that unit power is off.
Base unit
Base unit module guide
3D-2V cable