Technical data’s and circuit diagrams for the modular system
PCD0
26/766 E2
(HB_PCD0 26 766_E2.DOC)
SAIA-Burgess Controls Ltd.
Page 39
4.2.5
PROFIBUS-DP Bus port on the BC bus coupler
1
SHLD
2
NC
3
B = RxD/TxD-P
4
CNTR-P
5
GND-EXT
6
+5V-EXT
7
NC
8
A = RxD/TxD-N
Subminiature, 9-
pin, female
connector
9
CNTR-N (GND-EXT)
4.3
Compatibility of the EC economy bus coupler and the BC bus coupler
The bus couplers are interchangeable. If they are interchanged the
PROFIBUS master configuration must be changed. The following
table shows the differences between the key features and differences
for handling the units.
Features
EC bus coupler
BC bus coupler
DP slave address
0 - 99
3 - 126
DP ID
055A hex
1631 hex
Switch off parameterizing and
diagnosis functions
Do not configure the EC.
When configuring without GSD do not
configure the BC. For configurations
with GSD Service function 5 is
important.
Save bus node configuration
Parameterizing and
diagnosis Function 21
Error display
RUN-LED flashes red, the number of
flashing pulses is the error code.
Displays the error number on the
display.
Set data width for counter and
positioning modules.
Set data width when configuring.
Set data width when configuring and
set with Service function 13.