The LADDR parameter species the address of the CP 440 to be addressed.
Error Display on the RES_RECV FB
The DONE output shows "request completed without errors". ERROR indicates whether an error
has occurred. In STATUS the event number is displayed in the event of an error. If no error occurs
the value of STATUS is 0. DONE and ERROR/STATUS are also output in response to a RESET of FB
RES_RECV. In the event of an error, the binary result BR is reset. If the block is terminated without
errors, the binary result has the status "1".
Note
The RES_RECV function block does not have a parameter check. If there are invalid parameters,
the CPU branches to STOP mode.
Block call
STL representation LAD representation
CALL RES_RECV, I_RES_RECV
RES_RECV, I_RES_RECV
EN
REQ
R
LADDR
ENO
DONE
ERROR
STATUS
REQ : =
R : =
LADDR : =
DONE : =
ERROR : =
STATUS : =
Note
The EN and ENO parameters are only present in the graphical representation (LAD or FBD). The
block is started with EN = TRUE. If the function is completed without errors, ENO = TRUE is set.
To process these parameters, the compiler uses the binary result. The binary result is set to signal
state "1" if the block was terminated without errors. If there was an error, the binary result is set
to "0".
Communication via Function Blocks
6.3 Using the Function Blocks
Point-to-point connection CP 440 Installation and Parameter Assignment
Equipment Manual, 03/2022, A5E00057742-AE 83
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