Profibus - RayTek MI3 Operating Instructions Manual

Profibus

14 Profibus
Profibus DP-V0 defines a cyclical data exchange between a master (e.g. a PLC) and a slave (MI3
sensor). At start-up first an array of parameters (Profibus specific data) is sent from the master to the
slave, followed by an array with the configuration (sensor specific presetting's taken from the GSD
file) also sent from the master to the slave.
After start-up the bus switches to the data exchange state. In this state in- and output data gets
exchanged cyclically between master and slave. The input data is sent from the slave to the master
and contains mainly the measured temperatures of the MI3 sensor, see section 14.2.2
page 84. The output data is sent from the master to the slave and contains a set of selected sensor
parameters, see section 14.2.3
data exchange diagnostic data is sent to the master, see section 14.2.4
Each Profibus device comes with a device description file (GSD file) which is read by the
programming software of the master to define the slave.
Specification:
Version:
Physical layer:
Baud rate:
Connection
Address range:
ID
GSD file
Head support
14.1 Wiring
14.1.1 Comm Box (metal)
80
info@Raytek-Direct.ca
Output Data, page 85. In case of an error in start-up phase or during
Profibus DP-V0
RS485, 2 wire, electrically isolated
9.6 kBit/s to 12 MBit/s (automatic negotiated)
terminal or Sub-D or M12
1 to 125 (for the Profibus device)
0D36
"RAY_0D36.gsd"
up to 8 sensing heads (MI3 or MI3100)
X1 Pin Terminal Profibus
1 A
(negative signal)
2 B
(positive signal)
3 Shield
4 GND
5 n.a.
6 + 5 V
L , yellow Blinking: 0.5 Hz: parameters / 1 Hz: configuration
ED
L , red ON: data-exchange
ED
Figure 69: Profibus Terminal for Comm Box (metal)
Rev. F1 05/2013
Diagnose
(output, used for external termination)
(output, used for external termination)
Input Data,
Data, page 85.
MI3
1.800.868.7495