Omron CP1L Operation Manual page 519

DeviceNet I/O Link Units
Operating Procedure
Connecting the DeviceNet
I/O Link Unit
Connect the Unit.
Determine the node
number of the DeviceNet
I/O Link Unit and set the
rotary switches.
Wire the DeviceNet
transmission path.
DeviceNet I/O Link Units are connected to the CP1L CPU Unit. For CP1L M-
type CPU Units, up to three Units can be connected, including any other
Expansion Units and Expansion I/O Units that are also connected. The Units
can be connected in any order from the CPU Unit.
CP1L M-type CPU Unit
SYSMAC
IN
CP1L
L1 L2/N COM 01 03 05 07 09 11 01
00 02 04 06 08 10 00 02
00 01 02 03 04 06
COM COM COM COM 05 07
OUT
I/O Allocation
I/O words are allocated to the DeviceNet I/O Link Unit in the same way as to
Expansion I/O Units or other Expansion Units, i.e., the next available input
and output words are allocated. As shown below, when "m" is the last allo-
cated input word and "n" is the last allocated output word, the DeviceNet I/O
Link Unit is allocated "m+1" as its input word and "n+1" as its output word.
DeviceNet I/O Link Unit
Word m+1
Word m+2
32 inputs
32 outputs
Word n+1
Word n+2
In the following example, a CompoBus/S I/O Link Unit is connected as the first
Unit after the CP1L CPU Unit.
CP1L
CPU Unit
CIO 0
Input words
CIO 1
Output words
CIO 100
CIO 101
All of the words allocated to the DeviceNet I/O Link Unit are used to read and
write data between the CPU Unit of the DeviceNet I/O Link Unit and the CPU
Unit of the DeviceNet master, as shown in the following illustration.
• Connect the DeviceNet I/O Link Unit.
• The node number should be a unique number between
0 and 63.
• Use the DIP switch to set the DeviceNet I/O Link Unit fs
baud rate and the status of output data when a
communications error occurs.
• Connect the DeviceNet I/O Link Unit to a DeviceNet
transmission path.
DeviceNet I/O Link Unit
03 05 07 09 11
04 06 08 10
00 01 03 04 06
COM 02 COM 05 07
DeviceNet I/O
Link Unit
CIO 2
CIO 3
CIO 102
CIO 103
Section 7-7
485