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App index modbus communication log – Yokogawa Value Series FX1000 User Manual

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IM 04L21B01-17EN

Responses

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App

Index

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, space)

R:

Read

W:

Write

_ Space

• Example

EA
11/05/11 12:20:00 C DROPOUT
11/05/11 12:21:00 C READY

NONE 01 R

11/05/11 12:25:00 C HALT

NONE 01 R

EN

4.2 Output Format of Text Data