How to complete the hardware configuration and input/output control of IOL7A-16CB-M12 in TIA Portal?

Article Overview

1.Demo Products:

IOL7A-PN01B-8A+IOL7A-16CB-M12

2.Communication Protocol: PROFINET

3.Configuration Tool: TIA Portal

4.Operations Involved: Adding master and submodule configuration, modifying port Pin definitions, configuring UA power supply, communication status checking, input/output address control

5.Key Notes: Unused ports must remain as Standard Input; Pin2 of port X00 must be configured as output to provide UA power to the hub.

The IOL7A-16CB-M12 is a Solidot 16‑channel configurable input/output IO‑Link hub. It can be connected to a PROFINET network via the IO‑Link master IOL7A-PN01B-8A . How to complete its hardware configuration in TIA Portal and achieve input/output control of field sensors and loads?

In TIA Portal, simply complete the configuration of the master and hub submodule, modify the port Pin definitions, and configure the UA power supply, then the input/output channels of the IOL7A-16CB-M12 can be used normally. This article introduces the hardware configuration steps, key configuration notes, PROFINET master process data definitions, and input/output control methods.

I. Hardware Configuration Steps

1、Find the IOL7A-PN01B-8A IO‑Link master in the TIA Portal hardware catalog and add it. By default, the master generates Pin4 and Pin2 definitions for 8 ports, all set as Standard Input.

2、Right‑click to delete the default port definition and select IOL7A‑16CB to add the submodule configuration.

3、Delete the original Pin2 configuration of the corresponding port and change Pin2 to Pin2 Standard Output.

4、Compile the hardware configuration and download it to the PLC.

II. Key Configuration Notes

• In this case, only one IOL7A-16CB-M12，is connected to port X00 of the master; other ports are unused. Unused ports should remain as Standard Input. Improper configuration of empty ports may affect overall stability.

• The purpose of configuring Pin2 of port X00 as output is to provide UA power to the IOL7A-16CB-M12 via the master's Pin2 output channel. If the master's UA LED flashes, check this configuration first.

• In this case, the Pin2 output addresses for all ports X00–X07 are Q34.0–Q34.7. In the program, Q34.0 must be set to 1 for X00‑Pin2 to output power normally.

III. PROFINET Master Process Data Definitions

（IOL7A-PN01B-8A）

The data definition table for Slot 0 of the PROFINET master IOL7A-PN01B-8A is as shown.

• Communication status check method: Monitor variable %IB2 (port 0 device status byte). When the value is 16#03, it means port 0 has switched to IO‑Link mode and communication is normal.

IV. IOL7A-16CB-M12 Input/Output Control

The IOL7A-16CB-M12 is a self‑adaptive IO‑Link hub; no separate port direction configuration is required.

• Output control: Directly assign values to the output Q addresses (Q36.0–Q36.7) to drive external loads.

• Signal acquisition: External sensor input signals are automatically mapped to I addresses (I12.0–I13.7) for reading.