Edwards SCU-1500

D397-51-880 Issue E
Page 14 © Edwards Limited 2014. All rights reserved.
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OPERATION
Note: If the address is set to a value greater than 125 (decimal) the RED error LED will flash at around 1 Hz and
the module will go on-line. If this occurs, either change the address and cycle the power or remove power
and change the address.
4.5 Baud rate
All 10 standard DP baud rates are supported. These are: 9.6Kbd; 19.2Kbd; 45.45Kbd; 93.75Kbd; 187.5Kbd; 500Kbd;
1.5Mbd; 3Mbd; 6Mbd; 12Mbd. The unit has no facility for adjusting baud rate as detection is automatic and will
therefore respond to the baud rate chosen by the master.
4.6 Software format
The slave software is based upon a modular configurable architecture so the user has considerable control of the
contents of the data exchange messages.
The software modules (defined in the GSD files) relate to the control unit serial communications objects.
When the unit is linked onto the Profibus it will be parameterised and then configured before entering data exchange.
The parameterisation and configuration choices are in the GSD file and its comments describe the data content of
the input, output and parameterisation bytes. These choices will often be made using a third party configurator such
as SyCon that presents a user-friendlier interface.
16-bit valves are transmitted with the MSB first and the LSB last.
47 2 F 110 6 E
48 3 0 111 6 F
49 3 1 112 7 0
50 3 2 113 7 1
51 3 3 114 7 2
52 3 4 115 7 3
53 3 5 116 7 4
54 3 6 117 7 5
55 3 7 118 7 6
56 3 8 119 7 7
57 3 9 120 7 8
58 3 A 121 7 9
59 3 B 122 7 A
60 3 C 123 7 B
61 3 D 124 7 C
62 3 E 125 7 D
Table 7 - Address switch settings (continued)
Address in
Decimal
Upper switch
setting
Lower switch
setting
Address in
Decimal
Upper switch
setting
Lower switch
setting