Rockwell Automation Allen-Bradley 856T-B24LC, User Manual, Page: 41 / 82

Rockwell Automation Publication 856T-UM001B-EN-P - April 2021 41
Chapter 4 IO-Link Parameters
Diagnosis Tab
The Diagnosis tab provides device status, operation information, and the
results of the internal device self-checking at powerup. It allows you to
perform a reset to the factory settings of the device and to reset all permissible
statistics and offers you the option to help protect setup against unintended
parameter changes after configuration.
Diagnosis tab contains the following device information:
Table 7 - Diagnosis Tab
Parameter Description Value
Device Access Locks
Device Access
Locks.Parameter(write)
Access Lock
This variable is read/write. If selected, the IO-Link module does not accept any parameter change
after it is set with a value of TRUE.
TRUE= Parameter Write Access Locked
FALSE= Parameter Write Access Unlocked
Device Access Locks.Data
Storage Lock
This variable is read/write. When it is selected as TRUE it prevents updates to the Data stored in
the device. Also, if marked as TRUE, to avoid a communication loss with the 856T-B24LC module,
you must select either Disabled or Enable ADC in the Data Storage field in the master IO-Link AOP
configuration table.
TRUE= Data Storage Locked
FALSE= Data Storage Unlocked
Service Functions
Standard Command-Restore
Factory Settings
The IO-Link module resets to its factory default values when the system command (0x82) is
received via the IO-link protocol. It also erases all user configuration and diagnostic data but not
data that is related to Operating hours and module (circuit) ON/OFF counters.
See Table 26 on page 73 for parameters
can be reset using this command.
Standard Command-Reset
All Statistics
The IO-Link module resets all statistic back to their default value when a system command (0xAA)
is received via the IO-link protocol. This command resets all circuit counters, vibration max since
powerup and minimum and maximum internal temperature values
See Table 27 on page 74 for a complete
list of statistical information can be reset
using this command.
Service Status
Device Status
The actual operational device state. See Table 24 on page 69 for a detailed explanation on each of
the values displayed in this diagnostic. This data is read-only.
• Device is OK
• Maintenance Required
• Out of specification
• Functional Check
• Failure
Power On Self-Test
The device performs power on self test after startup. If a test fails, and it is possible to execute
the application code, the error code is passed to the application code for processing. Otherwise,
the IO-Link device blinks the device status indicator error code according to the self-test result
code. A lower value result code has higher priority. This data is read-only. An explanation of each
one of the results of this test is described in Power On Self Test (POST) on page 43 .
• Success
• Firmware Integrity Failure
• Internal RAM Failure
• Secondary Processor Failure
• IO-Link PHY failure
• Accelerometer Communication failure
• Serial nonvolatile memory Integrity
failure
• Class A voltage out of range
• Class B voltage out of range
Invalid Configuration
This field verifies if the configuration of the light or sound module in the stack light is valid. This
field is read-only type.
• FALSE= Light or sound module
configuration is valid
• TRUE= Invalid Light /sound module
configuration.