Omron DEVICENET#05-2003 Operation Manual page 22

Functions
I/O Interface Current
Consumption
I/O Unit Interface
Addresses
Checking the I/O Unit
Interface Status
Make sure that the power supply from the Communications Unit to the I/O
Units is less than the total rated output current (400 mA). The I/O interface
current consumption for each I/O Unit is shown in the following table.
I/O Unit
GT1-ID16(-1)
GT1-ID16MX(-1)
GT1-ID16ML(-1)
GT1-ID16DS(-1)
GT1-ID32ML(-1)
GT1-OD16(-1)
GT1-OD16MX(-1)
GT1-OD16ML(-1)
GT1-OD16DS(-1)
GT1-OD32ML(-1)
GT1-ROP08
GT1-ROS16
GT1-AD04
GT1-AD08MX
GT1-DA04
GT1-DA04MX
GT1-TS04T
GT1-TS04P
GT1-CT01
Calculation Example
When five GT1-ID32ML Input Units and three GT1-OD16 Output Units are
used, the total current consumption is calculated as follows:
(GT1-ID32ML current consumption) x 5 Units
+ (GT1-OD16 current consumption) x 3 Units
= 55 mA x 5 + 35 mA x 3 = 380 mA
The addresses of the I/O Units on the I/O Unit interface are automatically set
when the Communications Unit is started. The addresses are from 0 to 7 in
ascending order from the I/O Units closest to the Communications Unit.
DeviceNet Master Unit
Communica-
tions Unit
The following two methods are used to check the I/O Unit interface status:
• Checking the Communications Unit and I/O Unit indicators
• Checking the status of the Communications Unit
I/O interface current consumption
35 mA max.
35 mA max.
35 mA max.
35 mA max.
55 mA max.
35 mA max.
35 mA max.
35 mA max.
35 mA max.
65 mA max.
40 mA max.
50 mA max.
50 mA max.
50 mA max.
50 mA max.
50 mA max.
50 mA max.
50 mA max.
90 mA max.
400 mA
DeviceNet Network
I/O Unit interface
I/O Unit I/O Unit
Section 1-2
I/O Unit
9