Honeywell niagara cp-700 User Manual

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95-7776—03

Wiring to remote I/O modules typically provides both 15Vdc power and 12V battery backup, along with RS-485 communications 

to the modules. See Fig. 11.

Following all mounting and wiring, perform the following:

1. Apply Power.

2. Check the Status LED.

Also see the section About the Backup Batteries, page 20.

The WEB/CP-700 controller does not include an on/off switch. To apply power, you simply energize the AC circuit (90–263 Vac) 

wired to the attached NPB-PWR-UN-H power supply module. If remote I/O modules are wired to the unit, they are also typically 

powered by the WEB/CP-700 as well.

If powering the WEB/CP-700 controller with a NPB-WPM-US (Wall Mount AC Adapter), simply plug the AC adapter into a nearby 

wall outlet.

When power is applied, the front cover STATUS LED will light green. This indicates that the system is OK and that power is 

applied. The STATUS LED may be blinking until the QNX OS has finished loading and the Niagara platform daemon is running.

Once this boot sequence has finished, the STATUS LED should remain lit (steady), and the BEAT LED should start blinking, at a 

typical rate of 1Hz. Typically, this is about 30 seconds after power is applied.

WEB/CP-700

IO-16-REM-H

IO-16-REM-H

Connect shield wire to ground at one end only

Connect RS-485 shield wire to ground at 

one end only

Power Supply (15V) and 12V Backup 

Battery is routed to remote IO modules using 

a 3-conductor with shield cable. Use the 

shortest wiring route possible for power 

wiring—star, tee, bus, and loop topologies 

are all permissible.

RS-485 communications must be “daisy-

chained” to remote IO modules using a 

separate shielded twisted-pair cable.