Status Of Mandatory Alarm By Using Modbus 05H Function; Write Multiple Data By Using Modbus 10H Function; Communication Connection Modes - Actel ARTU Series Installation And Operation Manual

Lower machine abnormal reply (MODBUS 83H/84H function)
Address Corresponding
error function
BYTE BYTE
XX XX（83H/84H）

6.2.4 Status of mandatory alarm by using Modbus 05H function

Reading required by the upper computer (MODBUS 05H function)
Address Function
BYTE BYTE
XX XX（05H）
Address Function
BYTE BYTE
XX XX（05H）
Address Corresponding
error function
BYTE BYTE
XX XX（85H）

6.2.5 Write multiple data by using Modbus 10H function

Write multiple data as requested by the upper computer (MODBUS 16 (10H) function)
Address Function
BYTE BYTE
XX XX
（10H）
Address Function
BYTE BYTE
XX XX（10H）
Address Corresponding
error function
BYTE BYTE
XX XX（90H）

7 Communication Connection Modes

When multiple ARTUs are used in networking, an terminal matching resistor R shall be connected in parallel on
Exception error code data
BYTE
XX (02H address error, 03H data error)
Address
WORD
XXXX
Lower machine reply (MODBUS 05 function)
Address
WORD
XXXX (same as
requested by the
upper computer)
Lower machine abnormal reply (MODBUS 85H function)
Exception error code data
BYTE
XX (02H address error, 03H data error)
Start Number
address of data
WORD WORD
XXXX XXXX
（n）
Lower machine reply (MODBUS 16 (10H) function)
Start address
WORD
XXXX
Lower machine abnormal reply (MODBUS 90H function)
Exception error code data
BYTE
XX (02H address error, 03H data error,
04 writing not allowed)
Data
WORD
0ff00H or 0000H
Data
WORD
XXXX (same as
requested by the
upper computer)
Data length Data
BYTE 2*N BYTE
XX（2*n） XXXX......
.
Number of data
WORD
XXXX
15
CRC check
WORD
XXXX (CRC check value)
CRC check
WORD
XXXX (CRC check value)
CRC check
WORD
XXXX (CRC check value)
CRC check
WORD
XXXX (CRC check value)
CRC check
WORD
XXXX (CRC check
value)
CRC check
WORD
XXXX (CRC check value)
CRC check
WORD
XXXX (CRC check
value)