Modbus communication log – Yokogawa Removable Chassis DX1000N User Manual
Page 206
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IM 04L41B01-17E
Modbus Communication Log
• The FL command is used to output the data.
• The Modbus communication log is output. Up to 50 Modbus communication events
are retained.
• 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 (7 characters)
DROPOUT:
Communication could not keep up and drop out
occurred.
ACTIVE:
Activated.
READY:
Command ready state.
CLOSE:
Disconnected.
HALT:
Command halted.
kkkk Detail (4 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, E, space)
R:
Read
W:
Write
E:
E-M command
_ 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
4.2 Output Format of ASCII Data