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ifm
Programming Manual BasicDisplay CR0452 v03.02
05 / 2018
ifm function elements
ifm function elements for the device CR0452
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Parameters of the outputs
7894
Parameter
Data type
Description
RXOVFL
BOOL
condition of the RX overflow flag
TRUE:
overflow in the receive buffer
FALSE:
no overflow in receive buffer
RXWARN
BOOL
condition of the RX overflow warning flag
TRUE:
level in the receive buffer is critical
FALSE:
level in the input buffer is uncritical
TXOVFL
BOOL
condition of the TX overflow flag
TRUE:
overflow in the transmit buffer
FALSE:
no overflow in transmit buffer
TXWARN
BOOL
Condition of the TX overflow warning flag
TRUE:
Level in the transmit buffer is critical
FALSE:
Level in the transmit buffer is uncritical
RESULT
BYTE
feedback of the function block
(possible messages → following table)
Possible results for RESULT:
Value
dec | hex
Description
0
00
FB is inactive
1
01
function block execution completed without error
8
08
function block not yet executed
242
F2
Error: setting is not possible