Frigicoll CCM-18A/N-E Betriebshandbuch - Seite 6
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2.3 Function Code
Function code
0x01
0x04
0x10
2.4 Abnormal Reply
The master unit sends requests and waits for reply from the slave. When there's no error occurs, the
slave will reply normally, but when there's data checking error, the slave won't answer. When the
master unit sends wrong data (except for checking error), the slave will answer abnormally.
Code
0x 01
Illegal function code
Illegal data address
0x02
0x03
0x06
3 Usage Introduction
3.1 IP Configuration
The default IP address is 192.168.1.200 when modbus gateway leaves the factory. The PC used for
visiting websites must be in the same subnet segment with modbus gateway, which means it should
be 192.168.1.xx (xx is from 2 to 254). There are 2 ways to configure IP: static configuration and
multi-IP addition
3.1.1 Single IP Configuration
Open protocol dialog, configure the IP address and subnet mask, for example: IP:
192.168.1.211, subnet mask 255.255.255.0
Function name
Read Coils
Read Input Register
Write Holding Register
Name
Illegal data
Slave busy
6
Function
Read
Read
Write
Meaning
Function code received by the
slave can't be executed.
The received data address is not
allowed.
Value in query data field is not
allowed by the slave
The slave is busy with a long-time
program command. Ask the master to
send messages when the slave is
free.