ProSoft Technology PTQ-104C - Manual (Page 46)

Module Configuration 49TPTQ-104C ♦ 48TQuantum Platform
12TUser Manual 47TIEC 60870-5-104 Client
Processor Memory Address Module Database Address
40069 4
… …
40164 99
The data mapping in the following example shows the relationship between
processor and PTQ-104C memory addresses, assuming a 3x register start value
of 30001 and a PTQ-104C database start value of 2000.
Processor Memory Address
Module Database Address
30065 2000
30066 2001
30067 2002
30068 2003
30069 2004
… …
30164 2099
5.3.1 Data Type Mapping and Addressing
When interfacing data in the processor to that of the IEC 60870-5-104 protocol, it
is important the user understands the mapping of the data types to their
corresponding representation in the modules database. The table that follows
lists the data types supported by the module and their associated storage
representation.
IEC-870-5-104 Data Types
Type ID Type Description Data representation
1 M_SP_NA_1
(7.3.1.1)
Monitored Single-point Information: This data
type stores a single binary input point.
Associated time-tagged event information for
this type are M_SP_TA_1 (2) and M_SP_TB_1
(30).
Single bit value (7.2.6.1) with 0=Off and
1=On.
3 M_DP_NA_1
(7.3.1.3)
Monitored Dual-point Information: This data
type stores a dual-point binary input value (that
is, valve status). Associated time-tagged event
information for this type are M_DP_TA_1 (4)
and M_DP_TB_1 (31).
Dual-bit status (7.2.6.2) with 00b (0
decimal) = indeterminate or intermediate,
01b (1 decimal) = Off, 10b (2 decimal) =
On and 11b (3 decimal) = indeterminate.
5 M_ST_NA_1
(7.3.1.5)
Monitored Step-point Information: This data
type is used for step position of transformers
or other step position information. The value
for the position ranges from -64 to 63.
Associated time-tagged event information for
this type are M_ST_TA_1 (6) and M_ST_TB_1
(32).
Step data (7.2.6.5) is stored in a single
character value with bits 0 to 6 (-64 to
+63) representing the step position and bit
7 representing the following states: 0 =
Equipment is not in transient state 1 =
Equipment in transient state
Page 46 of 136 ProSoft Technology, Inc.
March 4, 2013