Yokogawa Button Operated MV2000 - Manual (Page 119)

5-1 M-4662
Responses
1
2
3
4
5
6
7
App
Index
5.1 Response Syntax
The following table shows the types of responses for various commands described in the
previous chapter.
The MV returns a response (affirmative/negative response) to a command that is
delimited by a terminator. The controller should follow the one command to one response
format. If the command-response rule is not observed, the operation is not guaranteed.
Commands Response
Group Affirmation Negation
Setting commands Setting Affirmative response Single negative
response or multiple
negative responses
Control
Basic Setting commands
Output commands
Control
Setup, measured, and
computed data output
Text output
Binary output
RS-422/485 Dedicated response No response
Special response
commands Dedicated response
* For details on the responses of the instrument information server function, see section 5.4.
For details on responses to special commands, see section 4.10.
Note
“CRLF” used in this section denotes carriage return line feed.
Affirmative Response
If a command is processed normally, the MV returns an affirmative response.
• Syntax
E0CRLF
• Example
E0
Single Negative Response
If a command fails to be processed normally, the MV returns a single negative response.
• Syntax
E1_nnn_mmm···mCRLF
nnn
Error number (001 to 999)
mmm···m Message (variable length, one line)
_ Space
• Example
E1 001 "System error"
Multiple Negative Responses
• If there is an error in any of the multiple commands that are separated by sub
delimiters, the MV returns multiple negative responses.
• The MV transmits a response for each command that causes an error.
• If there are multiple commands that have errors, the MV transmits negative responses
separated by commas.
• The error position numbers are assigned in order to the series of commands. The first
command is assigned the number 1.
Chapter 5 Responses