4-10
IM 77C01H01-10EN
4.2 Command and Response
BRW Writes data into I relays on a bit-by-bit basis in a random order
Function
Writes ON/OFF data into the individual I relays specified in a random order by the specified
number of bits.
• The number of bits to be written at a time is 1 to 32.
• For the format of response in the event of failure, see subsection 4.1.2.
• The command shown below includes the checksum function. When performing
communication without the checksum, do not include the 2-byte checksum element in the
command.
Command/Response (for normal operation)
Number
of Bytes
1
2
2
1
3
2
5
1
1
1
5
Command
element
STX
Station
number
(ST-NO)
CPU
number
(01)
Time to
wait for
response
(0)
BWR
Number
of bits
(n)
I relay
number
1
Comma
or
space
d1
Comma
or
space
I relay
number
2
Command (continued)
1
1
1
…
5
1
1
2
1
1
Comma
or
space
d2
Comma
or
space
…
I relay
number
n
Comma
or
space
dn
Checksum
ETX
CR
Write information is “0” to set OFF or “1” to set ON.
dn: write data of the specified number of bits (n = 1 to 32)
(
dn = 0 (OFF)
)
dn = 1 (ON)
Number
of Bytes
1
2
2
2
2
1
1
Response
element
STX
Station
number
(ST-NO)
CPU
number
(01)
OK
Checksum
ETX
CR
Example
Execute the active energy reset (relay symbol: Wh RST), maximum and minimum values
reset (relay symbol: MAX RST), and reactive energy reset (relay symbol: kVarh RST) of the
UPM100 at station number 01.
The following command writes “1” into the active energy reset (I0011), maximum and
minimum values reset (I0012), and reactive energy reset (I0015).
[Command]
[STX]01010BRW03I0011, 1, I0012, 1, I0015, 1D5 [ETX] [CR]
“OK” is returned in response to the above command.
[Response]
[STX]0101OK5C [ETX] [CR]
Содержание UPM100
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