Brd Reading I Relays On A Bit-By-Bit Basis; Bwr Writing Data Into I Relays On A Bit-By-Bit Basis - YOKOGAWA UTAdvanced Series User Manual

 BRD Reading I relays on a bit-by-bit basis
Number of
1
bytes
Command STX Address
element
Number of
1
bytes
Response STX Address
element
 BWR Writing data into I relays on a bit-by-bit basis
Number of
1
bytes
Command STX Address
element
Continuation of command
• • •
• • •
Number of
1
bytes
Response STX
element
IM 05P07A01-01EN
 Function
Reads the ON/OFF status of a sequence of contiguous I relays by the specified number
of bits, starting at a specified I relay number.
• The number of bits to be read at a time is 1 to 256 (decimal).
• For details on the response format at an error, see "3.2.3 Configuration of Response."
• The command/response shown below includes the checksum function. When
performing communication without checksum, do not include the 2-byte checksum
element in the command.
 Command/Response (during normal operation)
2 2 1
CPU Response
No. No. (01) waiting
(ADR) time
2 2 2 1
CPU OK d1
No. No. (01)
(ADR)
The response is "0" when the status is OFF or "1" when ON.
dn: read data of the specified number of bits (n = 1 to 256)
dn = 0 (OFF)
dn = 1 (ON)
 Function
Writes ON/OFF data into a sequence of contiguous I relays by the specified number of
bits, starting at a specified I relay number.
• The number of bits to be written at a time is 1 to 256 (decimal).
• For details on the response format at an error, see "3.2.3 Configuration of Response."
• The command/response shown below includes a checksum function. When
performing communication without checksum, do not include the 2-byte checksum
element in the command.
 Command/Response (during normal operation)
2 2 1
CPU Response
No. No. (01) waiting
(ADR) time
1 2 1 1
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 256)
dn = 0 (OFF)
dn = 1 (ON)
2 2 2
Address CPU OK Checksum ETX CR
No. No. (01)
(ADR)
3 5 1
BRD I relay No. , or
space
1 1 • • • 1
d2 d3 • • • dn Checksum ETX CR
3 5 1
BWR I relay No. , or
space
2 1 1
3.2 PC Link Communication
3 2 1 1
Number Checksum ETX CR
of bits (n)
2 1 1
3 1 1 1
Number , or d1 d2
of bits (n) space
3-27
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