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DG, diagnostics
237
02/16 MN05013001Z EN
DG, diagnostics
The diagnostics function block (DG function block) evaluates
the status messages of a safety function block. A status
message is connected in the standard function block
diagram with a contact of the DG function block. The contact
closes if the message occurs. This can be responded to in the
user program: To do this create a text using the text display
function block. After the contact closes, the text can be
shown on the display or on a connected visualization device.
The DG function block can only be edited with the easySoft-
Safety configuration software. This allows the use of up to
16 diagnostics function blocks.
Function block
Figure 98:
"Diagnostics" function block
a
Coil DG..EN: Enables the operation of the DG function block.
b
Contacts DG..Q1 to DG..Q8: Indicates the status of the safety
function block.
c
Contact DG..QC: Outputs a group message (OR operation) for
the 8 contacts Q1..Q8.
d
Output DG..QV: Supplies the status code from the diagnostics
register of the safety function block.
e
Output DG..QN: Supplies the status of all contacts Q1..Q8 of
the DG function block (double word format).
DG...
DiaGnostic
a
b
c
d
e
EN
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
QC
QN>
QV>
DW
DW
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