Hardware Description

A

24 Vdc power supply terminal block

B

Modbus address rotary switches

C

Modbus traffic status LED

D

Modbus locking pad

E

ULP status LED

F

Test button

G

Mechanical lock

H

QR code to product information

I

RJ45 Modbus-SL port

J

Stacking accessory connection (TRV00217, optional)

K

2 RJ45 ULP ports

For information on installation, refer to NVE85393 IFM - Modbus-SL Interface for One Circuit Breaker – Instruction Sheet.

Mounting

The IFM interface is a DIN rail mounting device. The stacking accessory enables the interconnection of several IFM interfaces without additional wiring.

24 Vdc Power Supply

The IFM interface must always be supplied with 24 Vdc.

It is recommended to use an UL listed/UL recognized limited voltage/limited current or a class 2 power supply with a 24 Vdc, 3 A maximum.

Modbus Address Rotary Switches

The IFM interface bears the Modbus address of the IMU to which it is connected. For more information regarding the IMU, refer to DOCA0093EN ULP (Universal Logic Plug) System – User Guide.

Define the Modbus address using the two address rotary switches on the front panel of the IFM interface.

The address range is 1 to 99. Do not to use the address 0, because it is reserved for broadcasting commands.

The IFM interface is initially configured with address 99.

Example of the configuration of the address rotary switches for address 21:

Modbus Traffic Status LED

The Modbus traffic status LED provides information about the traffic transmitted or received by the IMU over the Modbus network.

• When the Modbus address rotary switches are on value 0, the yellow LED is steady ON.

• When the Modbus address rotary switches are on value anywhere from 1 to 99, the yellow LED is ON during the transmission and reception of messages, otherwise, the LED is OFF.

Modbus Locking Pad

The Modbus locking pad on the front panel of the IFM interface enables or disables remote control commands to be sent over the Modbus network to the IFM interface itself, and to the other modules of the IMU.

• If the arrow points to the open padlock (factory setting), remote control commands are enabled.

• If the arrow points to the closed padlock, remote control commands are disabled.

  

  The only remote control commands that are enabled even if the arrow points to the closed padlock are the Set Absolute Time and Get Current Time commands (refer to Set Absolute Time and Get Current Time).

Test Button

The test button tests the connection between all the ULP modules connected to the IFM interface.

Pressing the test button launches the connection test for 15 seconds.

During the test, all the ULP modules keep working normally.

ULP Status LED

The yellow ULP status LED describes the mode of the ULP module.