
Comtrol IO-Link Master Initial Installation and Configuration
Mounting the IOLM 4-EIP
Use the following procedure to mount the IOLM 4-EIP. Install the IOLM 4-EIP on a mounting panel or a
machine.
1. Verify that the mounting surface is level (flat) to prevent mechanical stress to the IOLM 4-EIP.
2. Attach the IOLM 4-EIP to the surface with two 6mm screws and washers.
a. Attach the grounding strap to chassis or earth ground.
b. Torque down to 8Nm.
Note: Make sure that you connect the FE terminal at low impedance to function ground to meet EMC
standards.
Connecting to the Network
The IOLM 4-EIP provides two Fast Ethernet (10/100BASE-TX) M12 connections (4-pin female /D-coded).
You can use this procedure to connect the IOLM 4-EIP to the network.
1. Securely connect one end of the M12 Ethernet cable
to EIP 1 or EIP 2 Ethernet port.
2. Connect the other end to the network.
3. Optionally, you can use the other Ethernet port to
daisy-chain to another Ethernet device.
4. If you did not connect both Ethernet ports, make sure
that the port is covered with a connector cap, which was shipped with the IOLM
4-EIP to keep dust and liquids from getting in the connector.
Note: Ethernet ports must have an approved cable or protective cover attached to the port to guarantee
IP67 compliance.
Connecting the Power
The IOLM 4-EIP provides dual M12 (A-coded) power
connectors.
Note: Power connectors must have an approved cable or
protective cover attached to the port guarantee to IP67
compliance.
Pin
Input - Male Output - Female
Power Supply Voltage/Current
Values
1
L+
L+
Voltage Input Range
20 to 30VDC
2
L2+
L2+
Current (for the IOLM 4-EIP)
100mA
3
L-
L-
Maximum Output Current
1.9A†
4
L2-
L2-
Note:
The total supply of current for all connected IO-
Link devices.
The IOLM 4-EIP requires a UL listed power supply with
an output rating of 24VDC.
5
Not connected
Note: Maximum EMC protection is provided by a low impedance connection between functional earth,
the grounding tabs, and protective earth.
Pin
Signal
1
Tx+
2
Rx+
3
Tx-
4
Rx-
3/27/2015
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