ABB REF 610 Technical Reference Manual page 82

REF 610
82
Feeder Protection Relay
Technical Reference Manual - ANSI Version
Modbus data mapping
There are two types of monitoring data: digital targets and measurands. For
convenience and efficiency, the same data can be read from different data areas.
Measurands and other 16-bit values can be read either from the IR or HR
(read-only) area and digital target values from either the DI or coil (read-only) area.
It is also possible to read the status of the DIs as packed 16-bit registers from both
the IR and the HR area.
Consequently, all monitoring data can be read as consecutive blocks of data from the
IR or HR area.
The register and bit addresses are presented in table 4.1.15.2-5. Some register
structures are presented in separate sections below.
Note!
The HR and IR values are unsigned 16-bit integers unless otherwise specified.
Table 4.1.15.2-5 Mapping of Modbus data
Description
User-defined registers
UDR 1
UDR 2
UDR 3
UDR 4
UDR 5
UDR 6
UDR 7
UDR 8
UDR 9
UDR 10
UDR 11
UDR 12
UDR 13
UDR 14
UDR 15
UDR 16
Status registers
Status register 1
Status register 2
Status register 3
Analogue data
I
Phase current I (CT)
a x n
I
Phase current I (CT)
b x n
I
Phase current I (CT)
c x n
Ground-fault current x I (CT)
n
Phase discontinuity x I (CT)
n
Digital data
Pickup signal from element
51P
HR/IR DI/Coil bit
address (.bit) address
1 or 385
2 or 386
3 or 387
4 or 388
5 or 389
6 or 390
7 or 391
8 or 392
9 or 393
10 or 394
11 or 395
12 or 396
13 or 397
14 or 398
15 or 399
16 or 400
401
402
403
404
405
406
407
408
409.00 1
1MRS 755535
Value
Writeable Comment
range
IRF code See Structure 1
Warning See Structure 1
codes
See Structure 1
0...5000
0...50 x I
0...5000
0...50 x I
0...5000
0...50 x I
0...800
0...800% I
0...100
0...100% I
0/1 1 = activated
(CT)
n
(CT)
n
(CT)
n
(CT)
n
(CT)
n