ComAp IM-NTC-BB - Force Value - Step by Step Guide

InteliMains
NT
, SW version 3.0
InteliMains-NT-BTB-3.0-Reference Guide.pdf, ©ComAp – June 2013
58
In the figure above the signal of logical function CtrlHBeat FD is used to disable the main controller if it
is lost from CAN bus or CAN bus communication from that controller becomes erratic. It is used also
to disable the redundant controller when the communication on CAN bus is alright (it is negated). For
more information on Virtual Binary Inputs and Outputs (VPIO) please refer to the chapter about
Shared Binary Inputs and Outputs and Virtual Binary Inputs and Outputs.
NOTE:
Use pulse signals for control of circuit breakers. LCB ON COIL and LCB OFF COIL should be used to
prevent sudden opening for a short period of time when the controller fails and to ensure proper
function of redundancy.
7.7 Force value – step by step guide
In this chapter there is complete step by step guide which shows how to use Force value function of
the controller.
Forcing of values is used to change particular setpoint temporarily by activation of related Binary Input.
This is used to change function of controller under given conditions (e.g. there are two different
periods during the day when Export limit given by distribution network is required or not).
WARNING!
Setpoints must not be written continuously (e.g. via Modbus connection)! If continuous change of
setpoints is required, combination of External values and Force value function needs to be used. The
memory that holds setpoints is designed for up to 10
5
writings. Than memory may be damaged!
Setpoints that are available for forcing may be identified by Force value button on the right side in
GenConfig (see the figure below).
When the button is clicked, Force value dialog appears.
Add or remove Force value
Change position of Force value functions (priority)
Change the name of the source setpoint
(available only for Force value 1-16 setpoints)
Select the value that should be forced (i.e.
the value of the particular setpoint)
Rename binary input that
triggers the forcing
ID of binary input
(1 for ForceValueIn 1 etc.)
Select source setpoint or value