Eaton easy800

5 Function blocks
5.33 TB, table function
Control Relay easy800 11/11 MN04902001Z-EN www.eaton.com 265
Parametric programming of the function block inputs/outputs
When using the function block in the circuit diagram for the first time, use
OK to automatically enter the general display of function block parameters,
as shown in the figure on the left. This is where you make the function block
settings, in this case, the allocation of the inputs and outputs to the
operands. The display contains the following elements:
Input
I1: The value at input I1 is read into the table when function block coil TB..WP
is activated. The function block input I1 can be assigned the following
operands:
• Constant.
• Markers MD, MW, MB.
• Analog inputs IA01 to IA04:
• IA01: Terminal I7.
• IA02: Terminal I8.
• IA03: Terminal I11.
• IA04: Terminal I12.
• Analog output QA01.
• Output
…QV of a different function block.
Outputs
QV: The first and last table entry is output at output QV, depending on the
function block coils TB..RF and TB..RL.
QN: The output QN indicates the current number of table entries.
You can assign the following operands to the function block outputs TB..QV
and TB..QN:
• Analog output QA01.
• Markers MD, MW, MB.
Function of the function block
Up to 16 table fields can be overwritten and read.
TB01 +
>I1
QV>
QN>
TB01 Function block: Table function, number 01
+
Parameter set can be called via the PARAMETERS menu
>I1
Table input value:
-2147483648 - 2147483647
QV>
Actual, first or last table entry as output value: -2147483648 - 2147483647
>QN
Current number of table entries: 0 - 16
￫
To allow function block table function to work, it must be
enabled through an active coil TB..EN. If the coil is not active,
the entire function block will be disabled.