6. DeviceNet COMMUNICATION
IMR01Y36-E2
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Number of communication data items setting by DIP switch
Use the switch Nos. 4 and 5 of the DIP switch which there is on the left side of COM-JH, sets the
number of communication data items when conducting Polling I/O communication.
Left side view
DIP switch
ON
OFF
1 2 3 4 5 6 7 8
ON
1 2 3 4 5 6 7 8
ON
4 5
Number of communication data items when
conducting DeviceNet Polling I/O communication
OFF OFF
7
words
ON OFF
25
words
OFF ON
45
words
ON ON
100
words
Factory set value: 25 words
Switch No. 3, 6, 7 and 8: OFF fixed. (Do not change this one)
The number of communication data items can be calculated from the following equation.
Number of communication data items
=
(Number of words of first communication item for one module
1
+
Number of words of next communication item for one module
1
•
•
•
+
Number of words of last communication item for one module
1
)
×
Number of communication controllers
+
Fixed communication date items: 5 words
2
1
In the case of two-channel type (Z-TIO-B modules), the number of the words per one module is
the same as four-channel type (Z-TIO-A modules).
2
Measured data items (IN)
Receive counter: 1 word, Alarm state: 2 words, RUN/STOP state: 2 words
Setting data items (OUT)
Setting state selection: 3 words, RUN/STOP transfer: 2 words
The number of communication data items when conducting Polling I/O communication can
also be set via Explicit message communication, or by the configuration tool or rotary switch.
However, when the number of communication data items is set via Explicit message
communication, or by the configuration tool or rotary switch, the value set by the DIP switch
may be ignored.
For switch Nos. 1 and 2, refer to
5.3 DIP Switch Setting (P. 22)
.
