Omron SYSMAC CP Series, Руководство пользователя

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14 Serial Communications
14-16
CP2E CPU Unit Software User’s Manual(W614)
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Error Codes
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Related Auxiliary Area Words and Bits
The Modbus-RTU command set in the DM fixed allocation words for the Modbus-RTU Easy Master
is automatically sent when the Modbus-RTU Master Execution Bit is turned ON. The results (normal
or error) will be given in corresponding flags.
Code Description Description
00 hex Normal end
−
01 hex Illegal address The slave address specified in the parameter is illegal (24 8 or higher).
02 hex Illegal function code The function code specified in the parameter is illegal.
0 3 hex Data length overflow There are more than 94 data bytes.
04 hex Serial communications mode
error The Modbus-RTU Easy Master function was executed when the
serial communications mode was not the Modbus-RTU Easy Mas-
ter Mode or when the option board is not equipped.
8 0 hex Response timeout A response was not received from the slave.
8 1 hex Parity error A parity error occurred.
8 2 hex Framing error A framing error occurred.
83 hex Overrun error An overrun error occurred.
8 4 hex CRC error A CRC error occurred.
8 5 hex Incorrect confirmation address The slave address in the response is different from the one in the
request.
8 6 hex Incorrect confirmation function
code The function code in the response is different from the one in the
request.
8 7 hex Response size overflow The response frame is larger than the storage area (92 bytes).
88 hex Exception response An exception response was received from the slave.
8 9 hex Service being executed A service is already being executed (reception traffic congestion).
8 A hex Execution canceled Executing the service has been canceled.
8 F hex Other error Other FINS response code was received.
Word Bit Port Contents
A640 02 Built-in RS2 3 2C port of
CP2E E/S -type CPU
Unit or Serial Port 1 of
CP2E N
-type CPU Unit
Modbus-RTU Master Execution Error Flag
ON: Execution error.
OFF: Execution normal or still in progress.
01 Modbus-RTU Master Execution Normal Flag
ON: Execution normal.
OFF: Execution error or still in progress.
00 Modbus-RTU Master Execution Bit
Turned ON: Execution started
ON: Execution in progress.
OFF: Not executed or execution completed.
A641 02 Built-in RS-4 8 5 port of
CP2E S -type CPU Unit
or Serial Port 2 of CP2E
N
3 0/40/60 CPU Unit
Modbus-RTU Master Execution Error Flag
ON: Execution error.
OFF: Execution normal or still in progress.
01 Modbus-RTU Master Execution Normal Flag
ON: Execution normal.
OFF: Execution error or still in progress.
00 Modbus-RTU Master Execution Bit
Turned ON: Execution started
ON: Execution in progress.
OFF: Not executed or execution completed.