Application - ABB REB670 Applications Manual

Section 13
Logic
13.5.1
13.5.2.1
386

Application

A set of standard logic blocks, like AND, OR etc, and timers are available for adapting the
IED configuration to the specific application needs. Additional logic blocks that, beside
the normal logical function, have the capability to propagate timestamp and quality are
also available. Those blocks have a designation including the letters QT, like ANDQT,
ORQT etc.
There are no settings for AND gates, OR gates, inverters or XOR gates as well as, for
ANDQT gates, ORQT gates or XORQT gates.
For normal On/Off delay and pulse timers the time delays and pulse lengths are set from
the local HMI or via the PST tool.
Both timers in the same logic block (the one delayed on pick-up and the one delayed on
drop-out) always have a common setting value.
For controllable gates, settable timers and SR flip-flops with memory, the setting
parameters are accessible via the local HMI or via the PST tool.
Configuration
Logic is configured using the ACT configuration tool in PCM600.
Execution of functions as defined by the configurable logic blocks runs according to a
fixed sequence with different cycle times.
For each cycle time, the function block is given an serial execution number. This is shown
when using the ACT configuration tool with the designation of the function block and the
cycle time, see example below.
IEC09000695 V2 EN
Figure 171: Example designation, serial execution number and cycle time for logic
function
IEC09000695_2_en.vsd
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