Yokogawa Button Operated MV2000 - Manual (Page 128)

5-10 M-4662
Communication Log
• The MV returns the communication log in response to an FL command.
• The MV returns logs of setting/basic setting/output commands and responses. The
MV retains a maximum of 200 logs. Logs that exceed 200 are cleared from the oldest
ones.
• Syntax
EACRLF
yy/mo/dd_hh:mm:ss_n_uuu···ufd_mmm···mCRLF
······································
ENCRLF
yy Year (00 to 99)
mo Month (01 to 12)
dd Day (01 to 31)
hh Hour (00 to 23)
mm Minute (00 to 59)
ss Second (00 to 59)
n Connection ID. A number used to identify the user that is connected.
0: Serial
1 to 3: Ethernet
uuu···u User name (up to 20 characters)
f Multiple command flag
Space: Single
*: Multiple
(If you transmit multiple commands separated by sub delimiters at once,
this flag is set to an asterisk. The MV divides the multiple commands
into individual commands and stores a log for each command and a log
for each response.
d Input/Output
>: Input
<: Output
mmm···m Message (up to 20 characters)
• The communication log contains only the error number and not the
error message section.
• Normally, the MV returns the data as-is, but in some cases, it returns
a special message. The special messages are described below.
Reception
(Over length): Command length exceeded.
(Over number): Number of commands exceeded.
(Serial error): Received an error character through serial
communications.
Transmission
(ddd byte): Data output (where ddd is the number of
data values)
(Login): Login
(Logout): Logout
(Disconnected): Forced disconnection (occurs when the
connection is disconnected when transmitting
data via the Ethernet interface).
(Time out): Timeout, keepalive, TCP retransmission, etc.
5.2 Text Data Output Format