3.28
SEL-2032
Communications Processor
Instruction Manual
Date Code 20120126
Job Done Examples
Example 6: Modbus Job Done
Step 7. View the data stored in the Port 2 METER data region by
issuing the commands
VIEW 2:METER
or
VIEW 2:D1
. The
SEL-2032 responds with a data “dump” showing the data
stored in the region at the time of the request with the
respective data item labels. In this example, the data are
updated once each second.
Step 8. Cause the Modbus master to send a “read PORT 2 METER
region” message. In the message, the slave address field is the
Port 2 address set in Step 3. The Register Address field is
METER (100). The Register Count is the meter data length for
SEL-321-1. (use the
MODMAP
command to display the
register map.) The returned METER data are the same as the
data displayed by the
VIEW
command if the data have not
been updated since issuing the
VIEW
command. The
following shows a typical exchange:
Figure 3.24
Received Message
Figure 3.25
Response Message
06
to address 6
function code 4
04
starting register address 100
00
64
read 96 registers
00
60
CRC-16 code
xx
xx
06
from address 6
192 bytes of data following
C0
successful function code 4 response
04
•
•
•
first register
00
05
second register
00
02
last two registers
(IEEE float)
yy
yy
yy
yy
CRC-16 code
xx
xx
Содержание SEL-2032
Страница 6: ...This page intentionally left blank Courtesy of NationalSwitchgear com ...
Страница 12: ...This page intentionally left blank Courtesy of NationalSwitchgear com ...
Страница 46: ...This page intentionally left blank Courtesy of NationalSwitchgear com ...
Страница 70: ...This page intentionally left blank Courtesy of NationalSwitchgear com ...
Страница 104: ...This page intentionally left blank Courtesy of NationalSwitchgear com ...
Страница 124: ...This page intentionally left blank Courtesy of NationalSwitchgear com ...
Страница 188: ...This page intentionally left blank Courtesy of NationalSwitchgear com ...
Страница 216: ...This page intentionally left blank Courtesy of NationalSwitchgear com ...
Страница 244: ...This page intentionally left blank Courtesy of NationalSwitchgear com ...
Страница 322: ...This page intentionally left blank Courtesy of NationalSwitchgear com ...
Страница 328: ...This page intentionally left blank Courtesy of NationalSwitchgear com ...
Страница 336: ...This page intentionally left blank Courtesy of NationalSwitchgear com ...
Страница 338: ...This page intentionally left blank Courtesy of NationalSwitchgear com ...
Страница 342: ...This page intentionally left blank Courtesy of NationalSwitchgear com ...
Страница 348: ...This page intentionally left blank Courtesy of NationalSwitchgear com ...
Страница 354: ...This page intentionally left blank Courtesy of NationalSwitchgear com ...