HBM ClipX Bedienungsanleitung Seite 67

Group 4: Data from ClipX to fieldbus master
typ. 0.375 ... 1.15 ms
max. 0.62 ms with EtherCAT / PROFINET
max. 2.1 ms with EtherNet/IP™ / PROFIBUS
1 ms with Modbus TCP
ClipX
fieldbus
controller
1)
See table.
2)
At 4 kHz frame rate.
Abb. 39: Phase delay for group 4
Phase delays of group 4
Fieldbus
EtherCAT / PROF-
INET
Ethernet/IP™ /
PROFIBUS
Modbus TCP
Example 5
Signal delay from the input (group 1) with a Bessel filter with 1 kHz to the fieldbus mas-
ter (group 4).
• A/D converter (ADC) plus filter: 690 μs.
Added to this is a jitter of up to 52 μs, as the A/D converter is not synchronized with
group 1.
Group 1: 690 μs + 52 μs max.
• Fieldbus output with EtherCAT or PROFINET (4 kHz frame rate): max. 370 μs +
250 μs + 250 μs
(typ. 250 μs + 125 μs + 250 μs = 625 μs).
So the total phase delay is between 1.315 ms (min.) and 1.612 ms (max.).
ClipX
Electrical connections, LEDs
Period duration
of frame rate
1)
of fieldbus
Data transfer in ms
0.25
1
1
250 μs
Update rate
EtherCAT /
PROFINET
1 ms
Update rate
EtherNet/IP™ /
PROFIBUS /
Modbus TCP
Phase delay typ. in
ms
0.25 + frame rate/2
0.65 + frame rate/2
—
2)
Phase delay max.
in ms
0.37 + frame rate
1.1 + frame rate
—
65