Mitsubishi Electric MELSEC iQ-R Series - Test (Random Write) (Bit Units) (Command: BT, JT)

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17 COMMUNICATING USING 1C FRAMES
17.4 Device Memory Read and Write
Test (random write) (bit units) (command: BT, JT)
Set/reset devices and device numbers to bit devices (X, Y, M, etc.) by specifying them randomly in 1 point units.
Message format
The following shows the message format of the request data and response data of the command.
■Request data
■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)
■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  20
■Device
Specify the device to test. (Page 351 Device codes, device numbers)
■Set/Reset
• 0 (30H): Reset (OFF)
• 1 (31H): Set (ON)
ACPU common AnA/AnUCPU common
Device
(nth point)
Number of
device points
(n points)
Set/reset
(first point)
Set/reset
(nth point)
Device
(first point)
Message waitCommand
BT
42H 54H
JT
4AH 54H