When the number of data lose counter exceeds 100, the DO would be in
OFF state. Users can use the DO as the alarm of Modbus communication.
The wire connection of digital output is as figure 2-7.
Digital output level
Open collector to 30V Max.
Output current: 100mA
I-7242D DeviceNet/Modbus RTU Gateway User's Manual, July 2006, Version 1.1
Figure 2-7 Digital Output Wire Connection
I-7242D user manual