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BasicController CR0403
Function elements: CANopen SYNC
Content
35742
120
BasicController CR0403
CANOPEN_GETSYNCSTATE
= Get SYNC state
Unit type = function block (FB)
Unit is contained in the library ifm_CANopen_NT_Vxxyyzz.LIB
Symbol in CODESYS:
35069
>
Description
35334
CANOPEN_GETSYNCSTATE reads...
• the setting of the SYNC functionality (active / not active),
• the error state of the SYNC functionality (SyncError).
If the PLC CAN runs as CANopen slave, it is signalled via this FB whether SYNC signals are absent or appear regularly.
>
Synchronous PDOS etc. are handled in the CAN stack. CANOPEN_GETSYNCSTATE, however, provides the error state so that the application program can react accordingly.
Parameters of the inputs
35175
Parameter
EXECUTE
CHANNEL
Data type
BOOL := FALSE
BYTE
Description
FALSE TRUE (edge): execute function element once otherwise: function element is not active
A function element already started is processed.
CAN interface (1...n) depending on the device
121
BasicController CR0403
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Parameters of the outputs
35058
Parameter
SYNC
SYNCERROR
RESULT
Data type
BOOL
BYTE
BYTE
Possible results for RESULT:
0
Value dec | hex
00
Description
FB is inactive
1
8
242
01
08
F2 function block execution completed without error function block not yet executed
Error: setting is not possible
Description status of the SYNC functionality
TRUE: SYNC is activated:
In the master mode SYNC telegrams are generated according to the settings in the configuration, and synchronous PDOs are transmitted and received.
In the slave mode SYNC telegrams are received and accordingly processed.
FALSE: SYNC is not active
(sync error) SYNC error message
0 = no error
>0 = SYNC error (slave mode) feedback of the function block
(possible messages → following table)
122
BasicController CR0403
CANOPEN_SETSYNCSTATE
= Set SYNC state
Unit type = function block (FB)
Unit is contained in the library ifm_CANopen_NT_Vxxyyzz.LIB
Symbol in CODESYS:
35400
>
>
Description
35337
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With CANOPEN_SETSYNCSTATE, the SYNC functionality is switched on and off.
Parameters of the inputs
Parameter
EXECUTE
CHANNEL
SYNC
Data type
BOOL := FALSE
BYTE
BOOL
35176
Description
FALSE TRUE (edge): execute function element once otherwise: function element is not active
A function element already started is processed.
CAN interface (1...n) depending on the device status of the SYNC functionality
TRUE: SYNC is activated:
In the master mode SYNC telegrams are generated according to the settings in the configuration, and synchronous PDOs are transmitted and received.
In the slave mode SYNC telegrams are received and accordingly processed.
FALSE: SYNC is not active
Parameters of the outputs
35080
Parameter
RESULT
Data type
BYTE
Description feedback of the function block
(possible messages → following table)
Possible results for RESULT:
0
Value dec | hex
00
Description
FB is inactive
1
8
38
242
01
08
26
F2 function block execution completed without error function block not yet executed
SYNC could not be activated
Error: setting is not possible
123
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