Rtr Response - Mitsubishi Electric MELSEC iQ-R Series User Manual

RTR response

This section describes the procedure for sending data in a Layer 2 message in response to the RTR.
An RTR response data can be sent automatically or manually. Use parameters to specify whether to send an RTR response
automatically or manually.
Item
Auto
Manual
Setting method
Configure the Layer 2 message RTR response setting in the buffer memory. The following table lists the settings and their
locations.
Item
Send/receive setting
CAN-ID
RTR response setting
RTR response condition
Frame type
Transmission type
Cycle time
Data length
For details, refer to the following.
Page 176 Pre-defined Layer 2 message configuration (Un\G6000 to Un\G6167)
Page 184 Receive/Transmit process data (Un\G10000 to Un\G10293)
1 FUNCTIONS
66
1.11 Layer 2 Message Transmission and Receive
Description
Response data is sent automatically when an RTR is received.
Response data needs to be sent manually at any timing. ( Page 66
Setting method, Page 67 Flow of RTR response)
Location
Parameter A of 'Pre-defined Layer 2 message configuration'
(Un\G6000 to Un\G6167)
CAN-ID n of 'Receive/Transmit process data' (Un\G10000 to
Un\G10293)
Parameter B of 'Pre-defined Layer 2 message configuration'
(Un\G6000 to Un\G6167)
b12 of RTR/new/DLC of 'Receive/Transmit process data'
(Un\G10000 to Un\G10293)
b15 of RTR/new/DLC of 'Receive/Transmit process data'
(Un\G10000 to Un\G10293)
Parameter C of 'Pre-defined Layer 2 message configuration'
(Un\G6000 to Un\G6167)
Parameter D of 'Pre-defined Layer 2 message configuration'
(Un\G6000 to Un\G6167)
Lower byte of RTR/new/DLC of 'Receive/Transmit process
data' (Un\G10000 to Un\G10293)
Remarks
Regardless of RTR reception, it can be sent in any
timing as data transmission.
Setting value Remarks
FFFFH The setting value is fixed.
Optional Set the CAN-ID for the message
to be sent.
6FFFH: Manual RTR 
response
7FFFH: Auto RTR
response
Optional Set the condition for returning a
response to a remote
transmission request.
0: Send data frame The setting value is fixed.
Optional Set the transmission timing for
making a manual response.
Optional
Optional Set the data length (in bytes) for
data to be sent.