Implementation Results; Test Setup; Test Results - Texas Instruments BoosterPack BOOSTXL-IOLINKM-8 EVM User Manual

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4 Implementation Results

4.1 Test Setup

To test the different physical parameters, the IO-Link board, BOOSTXL-IOLINKM-8, is connected to a 24-V
supply without the AM243x Launchpad. The necessary signals for each test are explained in the following
sections. See the Eight Port IO-Link Master Reference Design Guide:

4.2 Test Results

This section outlines the physical layer tests as described by the described by the
Interface and System Specification
TCX_YYYY_ZZZZ_TTTTTTTTTT
4.2.1 Power-On Supply Current Capability of Master Port L+ (TCM_PHYL_INTF_ISIRM)
The IO-Link standard defines the current pulse capability for Devices as ISIR
essentially the inrush current from charging the Device decoupling capacitance at power-on. For support, the
Master provides a charge of at least 400 mA x 50 ms = 20 mAs after power-on without shutting down from an
overload condition.
The test consists of observing the current and voltage between the L+ and L- supply during power-on when a
current sink load of at least 1000 mA (ISIR
20 mAs for both the PSM power supply min (20 V) and max (30 V) levels to pass.
Figure 4-2 shows the behavior at a supply voltage of 20 V and a resistive load of about 18 Ω. The TPS274160
high-side switch used to control the L+ supply to the Device limits the current to 600 mA which limits the output
voltage to 10 V. The test results in a charge provided by the Master of 30 mAs for the first 50 ms and a passing
test result.
SLLU357 – MAY 2023
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publication. Figure 4-1
10 letters characterizing the test item, e.g. current, service
4 letters characterising the domain, e.g. INTF for interface
4 letters characterising the main part of the spec, e.g. PHY for physical layer
M = Master, D = Device, I = IODD
Fixed for Test Case
Figure 4-1. Test Names
) is connected. The resulting charge calculation must be greater than
M
Figure 4-2. TCM_PHYL_INTF_ISIRM with 20 V
Copyright © 2023 Texas Instruments Incorporated
TIDA-010234 for additional information.
IO-Link community in IO-Link
shows the structure of the test names.
= 400 mA (min) which is
M
BOOSTXL-IOLINKM-8 EVM User's Guide
Implementation Results
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