Fb Details; Error Code - Mitsubishi Electric MELSEC iQ-R Series Manual

FB details

Available device
■Serial communication module
Module
RJ71C24, RJ71C24-R2, RJ71C24-R4
■CPU module
MELSEC iQ-R series CPU modules
Basic specifications
Item Description
Language Ladder diagram
Number of basic steps 47 steps
The number of steps of the FB embedded in a program depends on the CPU module used, the input/output definitions, and the
options setting of GX Works3. For the options setting of GX Works3, refer to the GX Works3 Operating Manual.
FB compilation method Macro type
FB operation Pulse execution (multiple scan execution type)
Processing
By turning ON i_bEN (Execution command), data is sent using the nonprocedural protocol and the user frame according to
the setting of the user frame specification area for sending data.
Timing chart of I/O signals
The operation of the I/O signals is the same as the one for the following FB.
Page 10 M+RJ71C24_SendOndemand
Restrictions or precautions
This FB does not include the error recovery processing. Program the error recovery processing separately in accordance with
the required system operation.
This FB uses the dedicated instruction GP.PRR.
Turn OFF i_bEN (Execution command) after o_bOK (Normal completion) or o_bErr (Error completion) is turned ON. By
turning OFF i_bEN (Execution command), o_bOK (Normal completion) and o_bErr (Error completion) are turned OFF and
o_uErrId (Error code) is cleared to 0.

Error code

The error code is the same as the one that generates when the G(P).PRR instruction is used. Refer to MELSEC iQ-R
Programming Manual (CPU Module Instructions, Standard Functions/Function Blocks).
Engineering tool
GX Works3
2 SERIAL COMMUNICATION MODULE FB
2.7 M+RJ71C24_SendUserFrame
2
23