Mitsubishi Electric MELSEC iQ-R Series - Batch Write (Bit Units) (Command: BW, JW)

358
17 COMMUNICATING USING 1C FRAMES
17.4 Device Memory Read and Write
Batch write (bit units) (command: BW, JW)
Writes bit devices (X, Y, M, etc.) in batch.
Message format
The following shows the message format of the request data and response data of the command.
■Request data
ACPU common command
■Response data
There is no response data for this command.
Data specified by request data
■Command
■Message wait
Specify the delayed time of the response transmission. (Page 347 Message wait)
■Head device
Specify the head device. (Page 351 Device codes, device numbers)
■Number of device points
Convert the numerical value to 2-digit ASCII code (hexadecimal), and send it from the upper digits.
Specify the number of device points within the following range:
•1  Number of device points  160
• Head device No. + Number of device points - 1  Maximum device No.
■Write data for the number of device points
Store the data to be written in batch. (Page 353 Read data, write data)
ACPU common AnA/AnUCPU common
Command Message wait
Number of
device points
Head device
Write data for the number of
device points
BW
42H 57H
JW
4AH 57H