
9/42
SHEETDESCRIPTIONDESIGN DATE EDIT
01 Mutai Newl
re
istered
TITLE: Additional explanation of
PROFIBUS-DP Master function
(I/O Module Assignment function)
B-62924EN/04-1
FANUC LTD.
02.10.7
DRAW.NO.
Remarks) Explanation of terms used in the above table
Bit time : Time (sec) required to send one bit of data at a
specified transfer rate. This is equivalent to the
reciprocal of a transfer rate (bps).
Gap maintenance
period
: Period during which the list for managing the
address of the connected DP-Master is updated.
(Unit: Bit time)
Operation mode : Operation mode of a DP-Master (class1).
Offline : Mode that disables communication with
all nodes
Stop : Mode that enables communication with
the DP-Master (class2)
Clear : Mode in which the output to the
DP-Slave is set to 0
Operate : Mode that enables DI/DO
communication with DP-Slaves
Data transfer list : List with a 16-byte area. This list is held in the
DP-Master so that each bit indicates whether data
transfer to and from each of the nodes of station
numbers 0 to 125 has been performed (1) or not (0)
(bits 6 and 7 of the 16th byte are not used).