66 Rockwell Automation Publication 856T-UM001B-EN-P - April 2021
Appendix C Device Parameters
Process Data Input The 856T-B24LC module transmits the following Process Input Data to the
master each cycle.
The total size of data is 48 bits where Alarm status word is at the most
significant position of the Data process Input.
• Class B Voltage bits [7:0] - The IO-Link module maintains 8-bit value that
represents the Class B power supply voltage. This value is Read-only via
the IO-Link protocol.
• Class A Voltage bits [15:8] - The IO-Link module maintains 8-bit value
that represents the Class A power supply voltage. This value is Read-only
via the IO-Link protocol.
• Internal temperature [23:16] - The internal temperature of the IO-Link
module is provided as part of the process data input.
• Circuit Status [31:24]- The IO-Link module provides the control circuit
status of the unit as part of the process data input.
• Alarm Status [47:32] - The 856T-B24LC module provides the alarm status
of the unit as part of the process input data.
See Table 14 on page 57
for a detailed view of the bits for each of the fields in the
Process Data Input.
Reset Counter Circuit 1
0x0002/2
0x00A0/160 Write-only
—
Reset the ON/OFF counter for
Circuit 1
UIntegerT
(bit length = 8)
Reset Counter Circuit 2 0x00A1/161 Write-only
Reset the ON/OFF counter
forCircuit2
UIntegerT
(bit length = 8)
Reset Counter Circuit 3 0x00A2/162 Write-only
Reset the ON/OFF counter
forCircuit3
UIntegerT
(bit length = 8)
Reset Counter Circuit 4 0x00A3/163 Write-only
Reset the ON/OFF counter
forCircuit4
UIntegerT
(bit length = 8)
Reset Counter Circuit 5 0x00A4/164 Write-only
Reset the ON/OFF counter
forCircuit5
UIntegerT
(bit length = 8)
Reset Counter Circuit 6 0x00A5/165 Write-only
Reset the ON/OFF counter
forCircuit6
UIntegerT
(bit length = 8)
Reset Counter Circuit 7 0x00A6/166 Write-only
Reset the ON/OFF counter
forCircuit7
UIntegerT
(bit length = 8)
Start Calibration 0x00A7/167 Write-only
Starts the calibration of the
accelerometer max thresholds.
Returns success immediately
UIntegerT
(bit length = 8)
Stop calibration 0x00A8/168 Write-only
Cancels the calibration of the
accelerometer. Returns success
immediately
UIntegerT
(bit length = 8)
Reset All Statistics 0x00AA/170 Write-only
Resets all circuit counters back to
default value as well as Maximum
Vibration Since Power Up, Min
Module Temperature since Power
up and Max Module Temperature
since power up
UIntegerT
(bit length = 8)
Table 17 - IO-Link System Commands
Command Name
Index
(Hex/Dec)
Command
(Hex/Dec)
Access Default Value Description
Data Type
(Length, Offset)
Table 18 - Process Data Input
[47:32] [31:24] [23:16] [15:8] [7:0]
Alarm Status Circuit Status Internal Temperature Class A Voltage Class B Voltage