Installation guide

Commissioning

890USE17100 September 2003 93

If we remove an optional module that resides to the right of any and all mandatory

modules, as shown below,

the island will behave the same way as it would if all the modules were optional—

all of the existing modules would continue to be operational. Now, If the reset button

is pushed your configuration will be erased and modules 1 through 4 will be default

configured—all optional. If you power cycle instead of pushing the reset button, all

the existing modules, except for the module in position 6, will be operational again

and module 4 will continue to be configured as mandatory:

The island behavior changes, however, if an optional module to the left of a

mandatory module is removed.

12 4

MOOO O O

12 4

MOOO O O

RST