1 FUNCTIONS
1.16 IP Address Change Function
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■Cause of error at abnormal completion
If the IP address storage area is not cleared correctly, the cause of the error is stored as follows:
Checking the IP address
Checking with the buffer memory
Check with the following buffer memory areas.
Checking with module diagnostics
Check by using the [Module Information List] tab of the "Module Diagnostics" window. ( Page 283 Module Information
List)
Checking the operating status
For the RJ71EN71 or the RnENCPU (network part), when operation is performed based on the IP address of the IP address
storage area, 'IP address change function operating status' (Un\G11715.0) turns on.
Precautions
The following section lists the precautions for using the IP address.
Power off and reset operation
Do not power off or reset when writing to or clearing the IP address storage area. The values may not be applied onto the IP
address storage area. Power off or reset after checking the falling edge of the IP address storage area write request or IP
address storage area clear request.
Parameter IP address
For the IP address of the Ethernet-equipped module, the value in the IP address storage area has precedence over the
parameter value. When using the IP address specified with the parameters, clear the IP address storage area.
Module Storage location Stored value Cause of error
CPU module (built-in
Ethernet port part)
'IP address storage area
clear error cause' (SD1527)
200H Error occurred during clearing.
400H Clearing was started during the write processing.
RJ71EN71, RnENCPU
(network part)
'IP address storage area
clear error cause'
(Un\G11714)
200H Error occurred during clearing.
400H Clearing was started during the write processing.
Item CPU module (built-in Ethernet port part) RJ71EN71, RnENCPU (network part)
Own node IP address Un\G50 to Un\G51 Un\G4 to Un\G5
Subnet mask Un\G60 to Un\G61 Un\G14 to Un\G15
Default gateway IP address Un\G64 to Un\G65 Un\G18 to Un\G19
Own node network number Un\G77 Un\G31
Station number Un\G78 Un\G32
Transient transmission group number Un\G33
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