Error Code - Mitsubishi Electric MELSEC iQ-R Series Manual

■CPU module
MELSEC iQ-R series CPU modules
Basic specifications
Item Description
Language Ladder diagram
Number of basic steps 46 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 on-demand function of SLMP (MC protocol).
Timing chart of I/O signals
■In normal completion
i_bEN
o_bENO
o_bOK
o_bErr
o_uErrId
0H
■In error completion (also the same for a module error)
i_bEN
o_bENO
o_bOK
o_bErr
o_uErrId
0H

Error code

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.ONDEMAND.
• 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).ONDEMAND instruction is used. Refer to MELSEC iQ-R
Programming Manual (CPU Module Instructions, Standard Functions/Function Blocks).
0H
2 SERIAL COMMUNICATION MODULE FB
2.1 M+RJ71C24_SendOndemand
2
11