ProSoft Technology 5105-103M-PDPS - Manual (Page 93)

5105-103M-PDPS ♦ ProLinx Gateway Reference
IEC 60870-5-103 Master to PROFIBUS Slave Gateway User Manual
ProSoft Technology, Inc. Page 93 of 144
November 24, 2010
103M Data Types
This section describes the databases used by the module to support the IEC
60870-5-103 protocol of the IEC 60870-5-103 data types. Refer to the
configuration section for a complete discussion of the configuration file.
The following table summarizes the data types:
Type
ID Description Data Representation
1 Time-tagged messages with each data point
represented by two bits.
Dual-bit status (7.2.6.5 with 00b (0
decimal) = not used.
01b (1 decimal) = Off
10b (2 decimal) = On and
11b (3 decimal) = Not Used
2 Time-tagged messages with relative time with each
point represented by two bits.
Dual-bit status (7.2.6.5 with
00b (0 decimal) = not used,
01b (1 decimal) = Off,
10b (2 decimal) = On and
11b (3 decimal) = Not used.
3 Measurands with quality descriptor. The lower
three bits of the values represented in the data type
contain status information. The upper 13 bits of the
value contained a signed, 12-bit number. This data
type will return from 1 to 4 values. The number of
words received depends on the information object
number and the slave device
Measurand with quality descriptor
(7.2.6.8)
Bit 0: 0=No overflow, 1 = overflow
Bit 1: 0=valid, 1 = invalid
Bit 2: Reserved
Bit 3 to 25: Value from -1..+1-2
-12
4 Time-tagged measurands with relative time with
the value in the packet represented by a single
floating-point number.
Short floating-point number stored on
IEEE STD 754 format (fraction,
Exponent, Sign) (7.2.6.20)
5 Identification data composed of 12 characters of
data. Each point in defined of this data type should
reserve 12 bytes (6-word addresses) in the
database for the data received.
Byte data as defined in 7.2.6.2. First 8
bytes are characters 1 to 8 and last 4
bytes are manufacture bytes, either
decimal (0 to 255) or as ASCII
characters.
9 Measurands with quality descriptor. The lower
three bits of the values represented in this data
type contain status information. The upper 13 bits
of the value contained a signed, 12-bit number.
This data type will return from 1 to 9 values (some
slaves will return up to 16 values). The number of
words received is dependant on the information
object number and the slave device
Measurand with quality descriptor
(7.2.6.8)
Bit 0: 0=No overflow, 1=Overflow
Bit 1: 0=Valid, 1=Invalid
Bit 2: Reserved
Bits 3 to 25: Value from -1..+1-2
-12
20 General command to control a dual-point object.
Each command issued by the module uses the
values of two adjacent bits in the database or an
override value specified by the user command.
Dual-bit status (7.2.6.4 with
00b (0 decimal) = not used
01b (1 decimal) = Off,
10b (2 decimal) = On and
11b (3 decimal) = not used.