Function, Command/response (for normal operation), Example – Yokogawa JUXTA VJ Series Limit Alarms User Manual
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<3. PC Link Communication >
IM 77J01J11-01E
3.2.4
BRS Specifying I Relays to be Monitored on a Bit-by-bit
Basis
●
Function
Specifies the numbers of I relays to be monitored on a bit-by-bit basis. Note that this
command simply specifies I relays. Actual monitoring is performed by the BRM command
after the I relay numbers are specified.
When the volume of data is large and you wish to increase the communication rate, it is
effective to use a combination of the BRS and BRM commands rather than just the BRR
command.
When the power is turned OFF, the register numbers specified will be erased.
•
The number of registers to be specified at a time is 1 to 32.
•
For the format of response in the event of failure, see subsection 3.1.2.
•
The command shown below includes the checksum function. When performing
communication without a checksum, do not include the 2-byte checksum command
element in the command.
●
Command/Response (for normal operation)
Number of Bytes
1
2
2
1
3
2
5
1
5
1
Command
Element
STX
Address
number
(ADDRESS)
CPU
number
01
0
Number
of bits
(n)
I relay
number 1
BRS
Comma
or space
I relay
number 2
Comma
or space
Command (continued)
• • •
5
2
1
1
• • •
I relay
number n
Checksum
ETX
CR
1
2
2
2
2
1
1
Number of Bytes
Response
Element
STX
Address
number
(ADDRESS)
CPU
number
01
OK
Checksum
ETX
CR
030212E.EPS
●
Example:
Specifying that the burnout and alarms-1 and -2 of the VJ Series signal conditioner with
communication address-1 are to be monitored
The following command specifies that the statuses of burnout (I0004), alarm-1 (I0009), and
alarm-2 (I0010) at communication address-1 are to be monitored.
(This command simply specifies the registers to be monitored.)
[Command]
[STX]01010BRS03I0004,I0009,I0010BD[ETX][CR]
OK is returned in response to the above command.
[Response]
[STX]0101OK5C[ETX][CR]
3rd Edition : Oct. 15, 2007-00