Chapter 9
172
Logic programming – Function blocks
9.8.11 Error output combination
Function block diagram
General description
The Error output combination function block was designed to improve the integration
of SICK safety scanners (e.g. S3000). It can be used to set the outputs to predefined
values under certain conditions, e.g. in order to output a dedicated error output
combination in case of an antivalence error of the Switch synchronization function
block.
Parameters of the function block
Parameter Possible values
Number of error inputs 1 error input
2 error inputs
Number of inputs or Number of outputs 1 to 6
Error output combination For each output individually:
High
Low
Truth table
The following applies for the truth table in this section:
“0” means logic Low.
“1” means logic High.
“x” means “any” = “0” or “1”.
Error
input 1
Error
input 2
Output
1A
Output
1B
Output
2A
Output
2B
Output
3A
Output
3B
1 x Error output combination
x 1 Error output combination
0 0 Input 1A Input 1B Input 2A Input 2B Input 3A Input 3B
Figure 156:
Function block diagram for
the Error output combination
function block
Table 74:
Parameters of the Error
output combination function
block
Figure 157:
Logic example for the Error
output combination function
block
Table 75:
Truth table for Error output
combination