AXIOMATIC AX180800, User Manual

Page: 26 / 72

UMAX180800, 20 Thermocouple, 2 RTD, 4 Inputs, 6 Relays Dual CAN Controller Version 1 Page: 26-71
Table 20. Relay Override State Options
Value Meaning
0 Override State OFF
1 Override State ON
3.6.5 Unlatch Source
This Source can only be configured if the
“Relay Output Type”
is set to
‘Latched Logic
or
‘Inverse Latched Logic ’ and it can be enabled/disabled by the parameter “Relay Enable
Unlatch Source”
. If the signal of the
“Relay Unlatch Source”
is ON, it turns the output OFF
when the
“Relay Output Type”
is set to
‘Latched Logic ’. If the Unlatch Source state turns OFF
afterwards, the output state stays OFF independent of the output state before. The reverse
behavior is applied to the
Inverse Latched Logic .
3.7 Math Function Block
There are five mathematical function blocks that allow the user to define basic algorithms. A
math function block can take up to six input signals. Each input is then scaled according to the
associated limit and scaling setpoints.
Inputs are converted into percentage value based on the “
Input X Minimum
” and “
Input X
Maximum
” values selected. For additional control the user can also adjust the “
Input X
Decimal Digits
” setpoint to increase the resolution of the input data and the min and max
values.
A mathematical function block includes three selectable functions, in which each implements
equation
A operator B
, where A and B are function inputs and operator is function selected with
a setpoint “
Math Function X
”. Setpoint options are presented in
. The functions are
connected together, so that result of the preceding function goes into Input A of the next
function. Thus Function 1 has both Input A and Input B selectable with setpoints, where
Functions 2 to 4 have only Input B selectable. Input is selected by setting “
Function X Input Y
Source
” and “
Function X Input Y Number
”. If “
Function X Input B Source
” is set to 0
‘ Control not used’
signal goes through function unchanged.
𝑀𝑎𝑡ℎ 𝐵𝑙𝑜𝑐𝑘 𝑂𝑢𝑡𝑝𝑢𝑡 = (((𝐴1 𝑜𝑝1 𝐵1)𝑜𝑝2 𝐵2)𝑜𝑝3 𝐵3 ) 𝑜𝑝4 𝐵4
Table 21. Math function X Operator Options
0 =, True when InA equals InB
1 !=, True when InA not equal InB
2 >, True when InA greater than InB
3 >=, True when InA greater than or equal InB
4 <, True when InA less than InB
5 <=, True when InA less than or equal InB
6 OR, True when InA or InB is True
7 AND, True when InA and InB are True
8 XOR, True when either InA or InB is True, but not both
9 +, Result = InA plus InB
10 -, Result = InA minus InB
11 x, Result = InA times InB
12 /, Result = InA divided by InB
13 MIN, Result = Smallest of InA and InB