9
Functions Section 1-2
I/O Interface Current
Consumption
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.
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
≤ 400 mA
I/O Unit Interface
Addresses
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.
Checking the I/O Unit
Interface Status
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 Unit I/O interface current consumption
GT1-ID16(-1) 35 mA max.
GT1-ID16MX(-1) 35 mA max.
GT1-ID16ML(-1) 35 mA max.
GT1-ID16DS(-1) 35 mA max.
GT1-ID32ML(-1) 55 mA max.
GT1-OD16(-1) 35 mA max.
GT1-OD16MX(-1) 35 mA max.
GT1-OD16ML(-1) 35 mA max.
GT1-OD16DS(-1) 35 mA max.
GT1-OD32ML(-1) 65 mA max.
GT1-ROP08 40 mA max.
GT1-ROS16 50 mA max.
GT1-AD04 50 mA max.
GT1-AD08MX 50 mA max.
GT1-DA04 50 mA max.
GT1-DA04MX 50 mA max.
GT1-TS04T 50 mA max.
GT1-TS04P 50 mA max.
GT1-CT01 90 mA max.
I/O Unit interface
DeviceNet Master Unit
DeviceNet Network
Communica-
tions Unit
I/O Unit I/O Unit I/O Unit
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