IOLM 8-EIP Connecting Devices
You can use the IO-Link Master Library for EtherNet/IP and Modbus/TCP
or the following information to connection IO-Link devices to the IO-Link Master.
The IOLM 8-EIP provides eight IO-Link ports with M12 connectors (5-pin female/A coded).
Make sure that you tighten the cables properly to maintain IP67 capabilities.
This table provides signal information for the IO-Link connectors.
|1||L+||Power supply (+)
|3||L-||Power supply (-)|
|4||C/Q||Communication signal, which supports SDCI (IO-Link) or SIO (standard input/output)|
The C/Q pin for the IO-Link ports in SIO mode for all models:
The following table provides definitions of the terminology used above.
|PNP output||Is an output that can source current. That is; the (+) side of the
device is connected to the output and the (-) side of the device is connected to (-)
of the supply. The device is powered when the output LED is on.|
|NPN output||Is and output that sinks current. That is: the (-) of the device is connected to the
output and the (+) side of the device is connected to (+) side of the supply. The device is powered
when the output LED is off.|
|Sinks current into the IO-Link Master so a positive voltage will cause the input to turn on.
Using NPN with inputs is not correct as NPN described an output situation – however some vendors
describe their inputs as accepting a certain type of sensor output - so in this case a sinking
input will accept a PNP output sensor.
This table provides information that you may need regarding the IO-Link connectors.
The IO-Link Master Library for EtherNet/IP and Modbus/TCP contains specifications
for power sharing/budgeting L+/L-.
|Current and Power||Value|
|Maximum C/Q Current:||200mA|
|Port 1 - Maximum L+/L- Current Output||1.6A|
|Ports 2-8 - Maximum L+/L- Current Output||500mA|
|C/Q and DI Input
SDCI (IO-Link) Transmission Rates:
IO-Link ports must have an approved cable or protective cover attached to the port guarantee IP67 compliance