Eaton easySafety, Manual

Page: 639 / 695

List of function blocks
635
02/16 MN05013001Z EN
Function block coils
The following table is a general overview of the function
block contacts. A detailed overview of all contacts used in
the standard and safety circuit diagram is provided in
section “Contacts and coils used in the circuit diagram” on
page 643.
Table 33: General overview of the function block coils
Coil Meaning of abbrevia-
tion Description
A Muting sensor A Muting Sensor group A
B Muting sensor B Muting Sensor group B1
BD B ackward D irection Bit data input, backwards shift direction
BP B ackward P ulse Trigger coil
Clock input, backward shift direction
C_ C ount input Counter input
D_ D irection input Count up/down indicator
EN En able Enable function block
FD F orward D irection Bit data input, forwards shift direction
FL F eedback l oop Signal of the feedback loop
FP F orward P ulse Trigger coil
Clock input, forward shift direction
I I nput Controlled switch
OC O utput C ontrol Output signal of the monitored upstream function
block
OV OVerride safety func-
tion
Override
RE RE set Reset the function block
RF R ead F irst Trigger coil
On detecting a rising edge (trigger) and EN = 1 the
oldest value entered in the table is read out and
supplied at output QV (FIFO function)