Parameters
4.7 Standard functions
SIMOCODE pro - Parameterize
Operating Manual, 04/2017, A5E40507630002A/RS-AA/001
213
Operational Protection Off (OPO)
4.7.5.1
Response to positioner control function
Description of Operational Protection Off (OPO)
The "Operational Protection Off (OPO)" function block returns the positioner to a safe
position. To do this, the input (plug) must be connected to an appropriate socket (e.g. device
inputs, communication bus control bits, etc.).
The "Operational Protection Off" function block consists of
● one plug
● one "Status - OPO" socket. It is set if a signal is pending at the input.
● one "Fault - OPO Fault" socket. It is set when the respective, safe end position has been
reached.
In total, one "Operational Protection Off (OPO)" function block is available for the pro V basic
units.
The following table shows the basic operating principle:
Table 4- 74 Basic operating principle of Operational Protection Off (OPO) for the "Positioner" control function
Initial position when OPO is pending
Positioner is open Positioner opens Positioner stop/OFF Positioner closes Positioner is
Parameterized
response
"Positioner closes"
Fault reset: With
Fault reset: With
Fault reset: With
— —
Parameterized
"Positioner opens"
response
— — Fault reset: With
Fault reset: With
Fault reset: With
The following schematic shows the "Operational Protection Off (OPO)" function block:
Figure 4-79 "Operational Protection Off (OPO)" function block
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