9.19
Date Code 20120126
Instruction Manual
SEL-2032 Communications Processor
Protocols
Modbus RTU Protocol
The master request must have the following format:
1 byte.
Slave Address
1 byte.
Function Code (11h)
2 bytes.
CRC–16 for Message
A successful SEL-2032 response has the following format:
1 byte.
Slave Address
1 byte.
Function Code (11h)
1 byte.
Byte Count (7)
1 byte.
Slave ID (see following table)
1 byte.
Run Status
1 byte.
Fast Meter Status
4 bytes.
Reserved (always 0)
2 bytes.
CRC–16 for Message
The reported slave ID is simply the sum (modulo-256) of the START_ID
setting and the device ID from
.
Table 9.7
Device ID
(Sheet 1 of 2)
Slave ID
Description
00
Unused
a
01
Printer
02
Other IED
03
Unknown SEL IED
04
Master Port
05
SEL-49
06
SEL-121
07
SEL-121-10
08
SEL-121B/221B
09
SEL-121C/221C
10
SEL-121D/221D
11
SEL-121F/221F
12
SEL-121G/221G
13
SEL-121H/221H
14
SEL-121S/221S
15
SEL-151/251
16
SEL-151C/251C
17
SEL-151CD/251CD
18
SEL-151D/251D
19
SEL-167/267
20
SEL-167D/267D
21
SEL-187V/287V
22
SEL-279
23
SEL-279H
Summary of Contents for SEL-2032
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