4. RKC STANDARD COMMUNICATION
IM9000F02-E2
27
4.1.2 Selecting
Selecting is an operation in which the host computer selects one from among the REX-F9000s
multidrop connected and then of recommending data receive. The procedure is as the following.
Due to adopted fast selecting in REX-F9000s therefore becomes the type to send the data which
connected to selecting sequence.
Selecting procedure
(1) Initialize of data link
Host computer sends [EOT] for initializing of data link before selecting sequence.
(2) Selecting address send
Send the selecting address selected as the selecting sequence from the host computer.
[Device address] (Number of digits : 2)
This data is a device address of the REX-F9000 to be selected and must be the same as the
device address set value in item "
3.4 Device address setting
" (P. 9).
[ Identifier ]
REX-F9000 send
Host
computer
send
Host computer send
[ Data ]
[ BCC ]
(1)
(2)
(5)
(3)
(4)
(6)
[Address]
No response
E
O
T
S
T
X
A
C
K
N
A
K
E
T
X
(7)
E
O
T
