Devicenet I/O Link Units - Omron CP1H CPU Operation Manual

DeviceNet I/O Link Units

7-7 DeviceNet I/O Link Units
DeviceNet slave
Master PLC (CS Series with fixed allocations)
CPU Unit
I/O memory
Outputs
CIO 50
CIO 51
Inputs
CIO 350
CIO 351
Note
450
Connecting a CPM1A-DRT21 DeviceNet I/O Link Unit (with 32 inputs and 32
outputs as built-in I/O) to function as a slave allows the CP1H to be used as a
DeviceNet slave. A maximum of three DeviceNet I/O Link Units can be con-
nected to the CP1H to create I/O Links for up to 192 points (96 inputs and 96
outputs) between the CP1H and the DeviceNet master.
PLC supporting DeviceNet master,
e.g., CS, C200HX/HG/HE (-Z),
CVM1, CV-series, etc.
DeviceNet Master Unit or
DeviceNet Unit
CP1H CPU Unit
From the standpoint of the CP1H CPU Unit, the 32 input bits and 32 output
bits allocated to the DeviceNet I/O Link Unit are identical to input and output
bits allocated to Expansion I/O Units even though the DeviceNet I/O Link Unit
does not control external inputs and outputs. The input and output bits allo-
cated to the DeviceNet I/O Link Unit are one side of an I/O link between the
slave CPU Unit and the CP1H CPU Unit to which the Master Unit is con-
nected.
DeviceNet
Master Unit
Unit No. 0
32 bits
32 bits
Refer to the DeviceNet Slaves Operation Manual (W347) for details on
DeviceNet networks.
DeviceNet transmission path
Each Unit enables remote I/O
communications for 32 input and 32
output points as a DeviceNet slave.
CPM1A-DRT21
DeviceNet I/O Link Unit
CP1H
CPU Unit
I/O memory
Inputs
CIO 2
32 bits
CIO 3
Outputs
CIO 12
32 bits
CIO 13
Section 7-7
DeviceNet slave
DeviceNet
I/O Link Unit
Node
number: 0