3.7.3 Input data coming from the PLC
If neither digital input nor OSSD is configured as Fieldbus controlled, the behavior of the input data coming from
the PLC is as described below:
Condition Input data coming from the PLC System behavior
IOPS (PLCprovider status)
=bad
the last valid value of the input
variable is retained
the system keeps working in its
normal operating state
Connection loss the last valid value of the input
variable is retained
the system keeps working in its
normal operating state
After power-up the initial values (set to 0) are used
for the input variables
the system keeps working in its
normal operating state
If at least one digital input or OSSD is configured as Fieldbus controlled, the behavior of the input data coming
from the PLC is as described below:
Condition Input data coming from the PLC System behavior
IOPS (PLCprovider status)
=bad
the last valid value of the input
variable is retained
the system keeps working in its
normal operating state
Connection loss the last valid value of the input
variable is retained
the system transits to safe state,
deactivating the OSSDs, until the
connection is re-established.
After power-up the initial values (set to 0) are used
for the input variables
the system remains in a safe state
with the OSSDs deactivated, until the
input data are passivated.
3.7.4 Data exchanged through PROFIsafe
The following table details the data exchanged through the Fieldbus communication:
WARNING! The system is in the safe state if the control unit status byte of the System configuration
and status module PS2v6 or PS2v4 is different from "0xFF".
Data type Description
Communication
direction
Safe SYSTEM STATUS DATA
Control unit:
l
internal status
l
status of each of the four OSSDs
l
status of each single channel and dual channel input
Sensor:
l
status of each detection field (target detected or not) or error
status
l
status of static object detection option
l
muting status
from the control
unit
Safe SYSTEM SETTING COMMAND
Control unit:
l
set the ID of the dynamic configuration that shall be activated
l
set the status of each of the four OSSDs
l
save the reference for the anti-rotation around axes
l
enable the restart signal
l
enable the system recondition signal
Sensor:
l
set the muting status
to the control unit
Safe DYNAMIC CONFIGURATION STATUS
l
ID of the dynamic configuration currently active
l
signature (CRC32) of the dynamic configuration ID currently active
from the control
unit
3. Get to know Inxpect SRE 200 Series
Inxpect SRE 200 Series | Instruction manual v1.5 DEC 2023|Inxpect SAF-IM-200S_5m_7_00047_en_v1.5|© 2021-2023 Inxpect SpA
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