AH500 Hardware and Operation Manual 
12-12 
Description  Remedy 
16#6002 
Illegal netmask address 
(SM1107) 
1. Check the program and the related special data 
registers. 
2. Set the Ethernet parameter for the CPU module in 
16#6003  Illegal gateway mask (SM1107) 
1. Check the program and the related special data 
registers. 
2. Set the Ethernet parameter for the CPU module in 
16#6004 
The IP address filter is set 
Set the Ethernet parameter for the CPU module in 
16#6006 
The static ARP table is set 
Set the Ethernet parameter for the CPU module in 
16#6007 
The NTP client service is set 
incorrectly. (SM1380
)
Check the setting of the NTP client service, and download 
it again. 
16#6008  Illegal network number (SM1107) 
Check the network configuration in NWCONFIG, and 
16#6009  Illegal node number (SM1107) 
Check the network configuration in NWCONFIG, and 
16#600F 
The maximum MODBUS TCP 
connection is reached. (SM1089) 
Check the number of MODBUS TCP connections to see if 
the number of the current total connections exceeds the 
maximum number of MODBUS TCP connections.   
Duplicated IP address (SM1107) 
Modify the IP address and download it again.   
16#6101 
The trigger in the email is set 
Set the Ethernet parameter for the CPU module in 
16#6102 
The interval of sending the email 
is set incorrectly. (SM1112) 
Set the Ethernet parameter for the CPU module in 
HWCONFIG again. 
16#6103 
The device containing the data 
specified as the attachment 
exceeds the device range. 
Set the Ethernet parameter for the CPU module in 
HWCONFIG again. 
16#6106 
The SMTP server address is 
incorrect. (SM1112) 
Make sure that the address is correct, and set the 
Ethernet parameter for the CPU module in HWCONFIG 
16#6108 
SMTP authentication error 
(SM1112) 
Check the user name, and the password. Set the 
Ethernet parameter for the CPU module in HWCONFIG 
16#6110 
The SMTP server needs to be 
authenticated. (SM1112) 
Check the user name, and the password. Set the 
Ethernet parameter for the CPU module in HWCONFIG 
16#6111 
The specified email address does 
not exist. (SM1112) 
1. Check whether the email address is correct. 
2. Set the Ethernet parameter for the CPU module in 
16#6200 
The remote IP address set in the 
TCP socket function is illegal. 
(SM1196) 
1. Check the program and the related special data 
registers. 
2. Set the Ethernet parameter for the CPU module in 
16#6209 
The remote IP address set in the 
UDP socket function is illegal. 
(SM1196) 
1. Check the program and the related special data 
registers. 
2. Set the Ethernet parameter for the CPU module in 
16#6300 
Only auxiliary relays, data 
registers, and link registers can 
be used in the Ether Link. 
Check the setting of the Ether Link in NWCONFIG, and 
download it again.