YOKOGAWA UTAdvanced Series, User Manual

Page: 49 / 866

3-18
IM 05P07A01-01EN

68 Specify monitor

Function
The register No. specified at random can be specified for monitoring.
•The maximum number of registers that can be specified for monitoring is 100.
• For details on the response format at an error, see “● Response in an error state” in
“3.1.3 Configuration of Responses (response from UTAdvanced).”
• Broadcasting can be specified. No response is returned when broadcasting is specified.
• When the power supply is turned off, the register specified by “specify monitor” will be
erased. If the power supply is turned off, specify the register by “specify monitor” again.

Message (during normal operation)
Element
Message start
mark (:)
Address No.
(ADR)
Functioncode
(0x44)
Number of
monitor-specified
register
Byte
count(Note 1)
Number of bytes in RTU mode None 1 1 2 1
Number of bytes in ASCII
mode
1 2 2 4 2
Continuation of message
Monitor-
specified
Register No. 1
• • •
Monitor-specified
Register No. n
Error check
Message
end mark
(CR+LF)
2 • • • 2 2 None
4 • • • 4 2 2

Response (during normal operation)
Element
Message start
mark (:)
Address No.
(ADR)
Function code
(0x44)
Byte count
(Note 1)
Error check
Message
end mark
(CR+LF)
Number of bytes in RTU mode None 1 1 1 2 None
Number of bytes in ASCII
mode
1 2 2 2 2 2
Note 1: Byte count = 2 x number of specify monitor registers

69 Monitoring

Function
The content of the register specified for monitoring by function code “68” is read.
• For details on the response format at an error, see “● Response in an error state” in
“3.1.3 Configuration of Responses (response from UTAdvanced).”

Message (during normal operation)
Element
Message start
mark (:)
Address No.
(ADR)
Function code
(0x45)
Error check
Message
end mark
(CR+LF)
Number of bytes in RTU mode None 1 1 2 None
Number of bytes in ASCII
mode
1 2 2 2 2

Response (during normal operation)
Element
Message start
mark (:)
Address No.
(ADR)
Function code
(0x45)
Byte count
(Note 1)
Register
content
• • •
Number of bytes in RTU mode None 1 1 1 2 • • •
Number of bytes in ASCII
mode
1 2 2 2 4 • • •
Continuation of response
Register
content
Error check
Message end
mark (CR+LF)
2 2 None
4 2 2
Note 1: Byte count = 2 x number of registers of monitoring
3.1 Modbus Communication