Installation

It is the responsibility of the OEM, system integrator, or

end user to properly install the PLC equipment for safe

and reliable operation.  Product manuals provide

detailed information about installation, startup, and

proper use of the PLC equipment.  The installation

manual, shipped with your PLC programming software,

describes how to properly install the equipment.  If the

PLC installation must comply with supported standards,

such as FCC or CE Directives, please refer to the

Installation Requirements for Conformance to Standards,

shipped with the PLC programming software, for

additional guidelines.

•Installation should not be attempted without refer

ring to the applicable Programmable Controller Installa

tion Manual.

•Connect the battery to either of the battery connec

tors on the module (see Figure 2).

•Put the toggle switch in the STOP position.

•Put the keyswitch in the Memory Protection OFF posi

tion.

•Make sure that rack power is off.

•Install the CPM 790 module in slot 1 of rack 0.

•Turn on power.

The module should power up and the top LED should

blink.  When the diagnostics have completed

successfully, the top LED stays on and the second and

third LEDs are off.  The fourth LED is off if the

keyswitch is in the OFF position.  The CPU is now

ready to be programmed (if connected parallel, the CPU

can be programmed regardless of key position).   After

the program has been verified the toggle switch can be

moved to the appropriate operation mode position.

The LEDs indicate the position of the toggle switch,

memory protection status, and the state of the program.