Eaton XN-1RS232, Руководство пользователя

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3 Integrating the Module in DeviceNet
RS232 Module Class (VSC114)
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XI/ON: XN-1RS232 09/2011 MN05002013Z-EN www.eaton.com
111
(6F
hex
)
NUMBER
OF SUP-
PORTED
CHANNELS G USINT Indicates the number of channels
supported by this module instance.
112
(70
hex
)
RX BYTE
COUNT G USINT Number (0 to 7) of valid bytes in
this data segment of the process
input.
113
(71
hex
)
RX COUNT G USINT The value RX COUNT is transferred
together with every data segment
of the process input data. The
sequence of the RX COUNT values
is:
00->01->10->11->00...
(decimal: 0->1->2->3->0...)
A faulty sequence indicates that
data segments are missing.
114
(72
hex
)
TX COUNT
ACKNOWL-
EDGE G USINT The value TX COUNT ACKNOWL-
EDGE is a copy of the value
TX COUNT. The value TX COUNT
was transferred together with the
last data segment of the process
output data.
The value TX COUNT ACKNOWL-
EDGE is an acknowledgement of
successful acceptance of the data
segment using TX COUNT.
Attr.
no.
dec.
(hex.)
Attribute
name Access Type Description