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Commissioning and parameterization
7.2 Cyclic and acyclic data
7.2
Cyclic and acyclic data
The data exchanged between the PSU8400 power supply and the IO-Link master can be
viewed in the PCT In this case, a distinction is made between cyclic data (process data, value
status) and acyclic data (device data, events).
SITOP PSU8400 supports cyclic communication every 4 ms. However, the cycle time that is
actually used depends strongly on the IO-Link master being used. This is then appropriately
defined depending on the data transmission rate that is supported.
7.2.1
PSU8400 process data input (cyclic, reading)
Variable: ProcessDataIn "Process data Input"
ID: PO_ProcessDataIn
Data type: 112-bit record (subindex access not supported)
Table 7- 1
Subin-
dex
1
2
3
4
5
6
7
8
9
64
Process data input
Offset
Data type
0
Boolean
1
Boolean
8
8-bit UInt
16
16-bit UInt
32
16-bit UInt
48
16-bit UInt
64
16-bit UInt
80
16-bit UInt
96
16-bit UInt
Name
Description
Switched off re-
The output was switched on or switched off
motely
via IO-Link.
Energy saving
When the energy-saving mode is activated,
mode
the output voltage is reduced by 2 V
Device status
See Table 7-2 Device statuses (Page 65)
Error status
See Table 7-3 Error states (Page 66)
Output voltage
Output voltage [in 100 mV increments]
Output current
Output current [in 100 mA increments]
Output voltage
Set output voltage [in 100 mV increments]
setpoint
Response thresh-
Set response threshold of the output current
old of the output
[in 100 mA increments]
current
Input voltage
rms input voltage [in 100 mV increments]
Equipment Manual, 04.2024, A5E52642642-1-76
SITOP PSU8400
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