Manual

5-10
IM MV1000-17E
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.
T
ransmission
(ddd byte):
Data output (where ddd is the number of
data values)
(Login):
Login
(Logout):
Logout
(Disconnected):
Forced disconnection (occurs when the
c
onn
ection is disconnected when transmitting
data via the Ethernet interface).
(Time out):
T
imeout, keepalive, TCP retransmission, etc.
5.2 Text Data Output Format