IFM Electronic AC402S, Programming Manual

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SmartPLC SafeLine AC4S with fieldbus interfaces
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8.3.5 Local I/O interface: Provide diagnostic information
43107
To control the provision of the internal diagnostic information of the logical device of a safe sensor at
the local I/O interface the following function block is available:
Function block Description Reference
CtrlLocalInputs Provide diagnostic information of 2 safe inputs of the
local I/O interface
→
CtrlLocalInputs (
→ S.
194 )
The safe device that is to be controlled by means of the FB must be added to the device tree.
>
8.3.6 Local I/O interface: Access non-safe inputs/outputs
43106
To access the non-safe inputs and outputs of the local I/O interface the following function blocks are
available:
Function block Description Reference
GetLocalInput Read process data of a non-safe input of the local I/O
interface
→
GetLocalInput (
→ S.
198 )
SetLocalOutput Provide process data at a non-safe output of the local I/O
interface
→
SetLocalOutput (
→ S.
199 )
The process data of the local inputs detected by means of the FB GetLocalInput is not safe
(data type: BOOL).
► Do not implicitly use non-safe process data for a safe function.
To access non-safe process data of the local inputs and outputs with Standard PLC of AC4S:
► Use global exchange variables. (→
Data exchange between standard PLC and fail-safe
PLC (
→ S.
82 ))
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8.3.7 PLCopen Safety: Provide diagnostic information
43125
The function blocks of the PLCopen Safety library
SafetyPLCopen.lib
provide information about
their internal state at the output
DiagCode
. To be able to use this diagnostic information in the safe
application the following function block is available:
Function block Description Reference
Ctrl_SetDiagInfo Provide diagnostic information of the function blocks of
the safety PLCopen library SafetyPLCopen.lib in OSC
→
Ctrl_SetDiagInfo (
→ S.
196 )
The FB generates a separate message for each change of state in the online support centre
(OSC). The ring memory of the OSC therefore reaches its capacity limits within a short time.
► Use FB Ctrl_SetDiagInfo only for debugging.
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