Page 78 of 126
Proton Products SL mini and SLR mini Series Speed and Length Gauges Instruction Manual - issue 1s
O
PTIONAL
C
OMMUNICATIONS
I
NTERFACES
PROFIBUS
COMMUNICATIONS
The PROFIBUS interface is an optional extra that must be ordered for installation during
manufacture; it cannot be retrofitted to the gauge.
This communications interface operates independently of the other communications interfaces and
may be used at the same time as them.
PROFIBUS interface
The PROFIBUS interface may be accessed through the following pins:
Connector type: DB25 female (socket)
Functional
group
Pin Designation
Description
Notes
Shield
S
Shield
Shield
Connect to cable and plug shields
PROFIBUS
Industrial
bus
22
IBUS1
+5V
10
IBUS2
GND
23
IBUS3
A
11
IBUS4
B
PROFIBUS LED indicator
i-BUS
LED status
Indication
Continuous green
Online
PROFIBUS communications
Continuous red
Communication error
Extinguished
No communication
1
1
4
2
1
5
3
1
6
4
1
7
5
1
8
6
1
9
7
2
0
8
2
1
9
2
2
1
0
2
3
1
1
2
4
1
2
2
5
1
3