Schweitzer Engineering Laboratories SEL-587Z - Table D.17 Assign Event Report Channel Using Address 00 B2

D.15
Date Code 20020903 SEL-587Z Instruction Manual
Modbus RTU Communications Protocol
Modbus Commands
If you select an event number that has no data available, 8000h will be
returned.
Reading
History Data
Using Modbus
The Modbus Register Map (Table D.18) provides a feature that allows you to
download complete history of the last 10 events via Modbus. The history
contains the date and time stamp, type of event that triggered the report, and
the targets. Refer to NOTE 3 in the Modbus Map for a list of event types.
To download the history data using Modbus, write the event number (1–10) to
address 00C1h. Then read the history of the specific event number you
requested from the Modbus Map (Table D.18).
If you select a history number for which there is no data available, 8000h will
be returned.
Table D.17 Assign Event Report Channel Using Address 00B2
Set 00B2 To Read Data From Channel
187A
287B
387C
4IA
5IB
6IC
7IG
8 Relay Element Status Row 1
a
a
Refer to Appendix C: Relay Word Bits to obtain the contents of each relay element status row.
Relay Element Status Row 0, which represents targets, is displayed at 00FB in Table D.18 on
page D.16.
9 Relay Element Status Row 2
a
10 Relay Element Status Row 3
a
11 Relay Element Status Row 4
a
12 Relay Element Status Row 5
a
13 Relay Element Status Row 6
a
14 Relay Element Status Row 7
a
15 Relay Element Status Row 8
a
16 Relay Element Status Row 9
a
17 Relay Element Status Row 10
a
18 Relay Element Status Row 11
a
19 Relay Element Status Row 12
a
20 Relay Element Status Row 13
a