Table of Contents
Advertisement
7. INITIAL SETTING OF TRANSMISSION CONTROL DATA TO
BUFFER MEMORY
MELSEC-A
7.7.3
Setting of DC2IDC4
This section shows how to specify the setting and switching of DC2lDC4 and
gives a sample sequence program specification.
~ecification method
/
b15
to
b8
b7
to
b0
l'cHy
DC2 (default 12H)
DC4 (default 14H)
To change the DC21DC4, set a byte of code at any value between OOH
and FFH.
ample specification
When DC2 is switched to 92H, and DC4 is switched to 94H
(I10 addresses 80 to SF of the A1 SJ71 C24)
(Sequence program)
Write DC2 92H and DC4 94H to buffer ad-
dress 11 CH.
Write 201 H to buffer address 1 1AH.
When switching DC21DC4 from a default value, switch the value of buffer
address 11 CH.
And, make sure that 'with DC2iDC4 control' is specified at buffer address
1lAH.
Advertisement
Table of Contents
