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Profibus dp – Epson EM07ZS1647F User Manual

Page 87

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3. Operation

PROFIBUS DP

Test Environment

RC520 Controller: Pentium III 850 MHz 128 MB memory
Fieldbus I/O:

PCI-DPIO board Master (station address: 0)

Baud rate:

12 Mbps, 9.6 kbps

Connected Slave: Woodhead 16-inpout module (TDP-8C0-B18-02)
Node

address:

2

Connection Image

Terminating Resistor

To Standard Input

Waveform

Generator

Power Supply

+24V

NPN Output
PNP Output

Waveform

modification jig

PROFIBUS

I/F Board

Input Mod

u

le

D-S

ub

Evaluation

Signals with various pulse widths (every 5 msec) were input to the standard
I/O input and the input module of the fieldbus I/O at 1 Hz. For 10 minutes
(600 seconds), pulse widths of the received signals were measured at 12
Mbps and 9.6 kbps.

Result

12 Mbps: The input devices responded to 25-msec pulse.
9.6 kbps: The input devices responded to 80-msec pulse.

Fieldbus I/O Rev.6

75