Considerations For Registering, Reading, And Deleting User Frames - Mitsubishi Electric MELSEC iQ-R Series User Manual

13.3
Considerations for Registering, Reading, and
Deleting User Frames
The following shows the considerations for registering user frames and using registered user frames to transmit data to and
receive data from the target device normally.
Considerations for registering, reading or deleting user frames
■Registration of user frame
A user frame can be registered using one of the following methods.
• Registering by using the module extended parameters. (Page 265 Registration method using module extended
parameters)
• Registering with the dedicated instruction "PUTE" from the CPU module. (MELSEC iQ-R Programming Manual
(Instructions, Standard functions/Function blocks))
• Registering from a target device with command "1610" through communications using the MC protocol. ( MELSEC
Communication Protocol Reference Manual)
When a user frame is registered using the dedicated instruction or the MC protocol after the registration to the CPU built-in
memory or SD memory card by module extended parameters, it is replaced with the contents registered using module
extended parameters by powering OFF  ON or switching the CPU module STOP  RUN.
■Setting required to register/delete user frame
The following settings are required when registering or deleting user frames.
• Set "Setting change" to "Enable" in the transmission setting of the parameter.
■Registering, reading or deleting user frames from the CPU module
Register/read/delete a user frame when no data is communicated with the target device.
■Registration of sum check code
A user frame only with sum check code for variable data cannot be registered.
To register sum check code, add arbitrary data.
■User frame to be used for reception
Register a receive user frame in the CPU module or the flash ROM of C24.
■Designation of variable data
The variable data (05H to F9H) can be designated at only one place in the final frame.
13 CONTENTS AND REGISTRATION OF USER FRAMES FOR DATA COMMUNICATION
262

13.3 Considerations for Registering, Reading, and Deleting User Frames