Yokogawa Touch Screen GP20 - Manual (Page 84)

2-70
IM 04L51B01-17EN
2.10.14 Modbus Communication Log (FLog)
The output in response to the command “FLog,Modbus” is shown below.
Syntax
EA<crlf>
yyyy/mo/dd_hh:mm:ss_c_xxxxxx_kkk…k_nnn_d<crlf>
…
EN<crlf>
yyyy/mo/dd_hh:mm:ss Time of error occurrence
yyyy Year (1900 to 2099)
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
M Modbus master
C Modbus client
xxxxxx Event that occurred (fixed to 6 characters)
ACTIVE Activated
READY_ Command ready state
CLOSE_ Disconnected
HALT_¯ Command halted
kkk…k Details (fixed to 15 characters. Unused character positions are
filled with spaces. See table below.)
nnn Command number (0 to 999)
d Command type
R Read
W Write
N Miscellaneous
Detail * Meaning
SKIP Command not set.
INVALID Command cannot be executed.
WAITING Server/slave communication recovery wait.
CLOSED Server/slave connection closed.
RESOLVING Server/slave connection being established (resolving address).
CONNECTING Server/slave connection being established (requesting connection).
UNREACH Server/slave connection failed (peer not found).
TIMEDOUT Server/slave connection failed (timeout occurred).
BROKEN Response message corrupt (CRC error).
ERR_FC Response message was an illegal function message.
ERR_ADDR Response message was an illegal data address message.
ERR_VALUE Response message was an illegal data value message.
ERR_DEVICE Response message was a slave device failure message
ERR_ACK Response message was an acknowledge message.
ERR_BUSY Response message was a slave device busy message.
ERR_NEGATIVE Response message was a negative acknowledge message.
ERR_GATE_PATH Response message was a gateway path unavailable message.
ERR_GATE_TARGET Response message was a gateway target device failed to respond
message.
BAD_SLAVE The slave address of the response message is invalid (does not
match the command).
BAD_FC The function code of the response message is invalid (does not
match the command).
BAD_ADDR The address of the response message is invalid (does not match
the command).
2.10 ASCII Output Format