Brm monitors i relays on a bit-by-bit basis, Function, Command/response (for normal operation) – Yokogawa JUXTA M Series Digital Limit Alarms MVTK User Manual
Page 26: Example
3-12
<3. PC Link Communication >
IM 77J04J11-01E 1st Edition : 2006.08.25-00
BRM Monitors I relays on a bit-by-bit basis
●
Function
Reads the ON/OFF statuses of the I relays that have been specified in advance by the
BRS command.
•
Before executing this command, the BRS command must always be executed to
specify which I relays are to be monitored. If no relay has been specified, error code
06 is returned.
•
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 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
1
1
Command
element
STX
0
BRM
ETX
CR
Address
number
(ADR)
CPU
number
01
Checksum
• • •
Number of Bytes
1
2
2
2
1
1
1
1
2
1
1
Response
element
STX
OK
d1
d2
d3
ETX
CR
Address
number
(ADR)
CPU
number
01
• • •
dn
Checksum
Responses 0 and 1 indicate OFF and ON respectively.
dn: read data of the number of bits specified by the BRS command (n=1 to 32)
dn=0 (OFF)
dn=1 (ON)
●
Example:
Monitoring the burnout, alarm 1 and alarm 2 of the M Series with address number 01 when
they have been specified to be monitored.
(This command reads the statuses of the I relays specified by the BRS command.)
[Command]
[STX]01010BRMA3[ETX][CR]
The ON/OFF statuses of the I relays are returned with respect to the above command.
[Response]
[STX]0101OK000EC[ETX][CR]
All have been OFF.