Q. Even if multiple bits are digital output with function code [FC15], only bit 0 reacts.
A. For example, with the combination of CPSN-MCB271-S1-041 and CPSN-DO-08BRL,
even if the sample program is executed with function code [FC15] in order to "turn all digital output bits ON",
only output bit 0 reacts, other bits do not react.
[Example 1]
Input Number: 0 (Init)
Input IP Address: 10.1.1.101
Input TCP Port Number: 502
Input Number: 7 ([FC15] WriteMultipleCoils )
Start Address: 0
Data Length: 8
Write Data (bin): 11111111
Send OK !
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In the above case, for the source code of the same sample program，it is necessary to specify the state of each bit individually.
Write Data (bin): 11111111
⇒
Write Data (bin): 1 1 1 1 1 1 1 1
[Example 2]
Write Data (bin): 10101010
⇒
Write Data (bin): 1 0 1 0 1 0 1 0
[Example 3]
Write Data (bin): 01010101
⇒
Write Data (bin): 0 1 0 1 0 1 0 1