ProSoft Technology 5105-103M-PDPS - Manual (Page 125)

5105-103M-PDPS ♦ ProLinx Gateway Reference
IEC 60870-5-103 Master to PROFIBUS Slave Gateway User Manual
ProSoft Technology, Inc. Page 125 of 144
November 24, 2010
3.4 IEC 60870-5-103 Master Protocol Interoperability Documentation
This companion standard presents sets of parameters and alternatives from
which subsets have to be selected to implement particular telecontrol systems.
Certain parameter values, such as the number of octets in the COMMON
ADDRESS of ASDUs represent mutually exclusive alternatives. This means that
only one value of the defined parameters is admitted per system. Other
parameters, such as the listed set of different process information in command
and in monitor direction allow the specification of the complete set or subsets, as
appropriate for given applications. This clause summarizes the parameters of the
previous clauses to facilitate a suitable selection for a specific application. If a
system is composed of equipment stemming from different manufacturers it is
necessary that all partners agree on the selected parameters.
Note: In addition, the full specification of a system may require individual selection of certain
parameters for certain parts of the system, such as the individual selection of scaling factors for
individually addressable measured values.
The selected parameters should be marked in the white boxes as follows:
 Function or ASDU is not used
⌧ Function or ASDU is used as standardized (default)
R Function or ASDU is used in reverse mode
B Function or ASDU is used in standard and reverse mode
The possible selection (blank, X, R, B) is specified for each specific clause or
parameter.
A black check box indicates that the option cannot be selected in this companion
standard.
The pages in this section have been extracted from the 60870-5-103 ©
IEC:1997, pages 159 to 171.
3.4.1 Electrical Interface
⌧ EIA RS-485
⌧ Number of loads 32. For one protection equipment
NOTE - EIA RS-485 standard defines unit loads so that 32 of them can be operated on one line.
For detailed information refer to clause 3 of EIA RS-485 standard.
3.4.2 Optical Interface
 Glass fiber
 Plastic fiber
 F-SMA type connector
 BFOC/2,5 type connector