User guide

5-19
M-4662
Responses
1
2
3
4
5
6
7
App
Index
ModbusCommunicationLog
• The MV returns the Modbus communication log in response to an FL command.
• The MV retains a maximum of 50 Modbus communication events.
• Syntax
EACRLF
yy/mo/dd_hh:mm:ss_c_xxxxxxx_kkkk_nn_dCRLF
···································
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
)
c
Communication type (
C
or
M
)
C:
Modbus client (Ethernet)
M:
Modbus master (serial)
xxxxxxx
Even that occurred (seven characters)
DROPOUT:
Communication could not keep up, and a dropout
occurred.
ACTIVE:
Activated.
READY:
Command ready state.
CLOSE:
Disconnected.
HALT:
Command halted.
kkkk
Detail (four characters)
GOOD:
Normal operation
NONE:
No response from the slave device.
FUNC:
Received a function error.
REGI:
Received a register error.
ERR:
Received a packet error.
LINK:
Ethernet cable disconnected (Modbus client).
HOST:
Unable to result the IP address from the host name
(Modbus client).
CNCT:
Failed to connect to the server (Modbus client).
SEND:
Failed to send the command (Modbus client).
BRKN:
Failed to receive the command.
Space At command start
nn
Command number (
1
to
16
, space)
d
Command type (
R
,
W
, space)
R:
Read
W:
Write
_
Space
• Example
EA
01/05/11 12:20:00 C DROPOUT
01/05/11 12:21:00 C READY NONE 01 R
01/05/11 12:25:00 C HALT NONE 01 R
EN
5.2 Text Data Output Format