App index modbus communication log – Yokogawa Button Operated MV2000 User Manual
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M-4662
Responses
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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