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■String specification
The string specification is a method to specify a device in another CPU to be written/read by character string.
[Program for string specification with the DP.DDWR instruction]
X0
DP.DDWR H3E1
In the string specification, data can be written to/read from all device ranges of another CPU.
For example, when data register in host CPU is 12K points and data register in another CPU is 16K points, data can be
written/read by 16K points from the start of the data register in another CPU.
[Writable/readable device range in string specification]
Host CPU
D0
Data register
·
(12K points)
D12287
The following explains precautions for string specification.
• The number of characters that can be specified is 32.
• Whether "0" is appended at the start of the device number or not, the devices are processed as the same.
For example, both "D1" and "D0001" are processed as "D1".
• Whether a device is specified by upper case character or lower-case character, they are processed as the
same. For example, both "D1" and "d1" are processed as "D1".
• If a device not existing in another CPU is specified by a character string, the instruction will be completed
abnormally.
D0
D100
Specifies "D200", a device in another CPU
to be written by character string.
Another CPU
D0
Data register
Writable/readable
·
(16K points)
D16383
10 MULTIPLE CPU HIGH-SPEED TRANSMISSION DEDICATED INSTRUCTIONS
"D200"
M0
10
863
10.1 Overview
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