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18 COMMUNICATING USING 1E FRAMES
18.4 Read and Write Device Memory
Test in word units (random write) (command: 05)
Specify the devices and device numbers of bit devices (X, Y, M, etc.) in 16-point units randomly, and set/reset them.
Specify the devices and device numbers of word devices (D, T, C, etc.) in 1-point units randomly, and write them.
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
■Number of device points
Specify the number of device points to be set/reset. (Page 402 Number of device points)
When specifying bit devices, set the head device No. in multiples of 16 (0, 16, ... in decimal notation).
■Fixed value
Fixed to '0'.
■Specified device
Specify the device to be set/reset. (Page 397 Device codes and device numbers)
■ON/OFF specification
Store the data to be written.
ASCII code Binary code
Specified device
(first point)
ON/OFF
specification
(first point)
Specified device
(nth point)
ON/OFF
specification
(nth point)
Number of device
points
(n points)
Fixed value
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