129
6 F 3 B 0 3 6 2
• For data storage registers, a boundary error (TermSTS = 0AH) occurs if the specified area
(start register + register range) does not exist in the local port.
• A response timeout error (TermSTS = 02H) occurs if the loopback response time exceeds the
time specified by the timer counter value.
• If the local port registers are write protected by setting the special coil, the memory write
protected status (TermSTS = 04H) is returned.
F 9 8 7 6 5 4 3 2 1 0
SW067 SW C T F D RW LW W XW/YW
e. Sample program
This sample ladder program issues a remote port loopback request to the Ethernet Port.
This program is executed by turning on the R0092 A point.
A user program must compare the transmitted and loopback data for equivalence.
Parameters: 12544:3100H, 00015:000FH
|R0092 |
1|-| |-+[12544 MOV W0903][00015 MOV W0904]----------------------------|
| | /* Designates the module and sets the CMD number. */
| | |
| +[00485 MOV W0905]---------------------------------------------|
| | /* Sets the loopback data length. */
| | |
| +[00004 MOV W0906][00000 MOV W0907]----------------------------|
| | /* Sets the send source register type and starting register
|number. */
| | |
| +[00004 MOV W0908][00500 MOV W0909]----------------------------|
| | /* Sets the loopback destination register type and starting
|register number. */
| | |
| +[00100 MOV W0910]---------------------------------------------|
| | /* Sets the response time limit. (10 seconds) */
| | |
| +[341995909 DMOV W0912•W0911][01025 MOV W0913]-----------------|
| | /* Loopback destination IP address, message transmission UDP
|port number */
| | |
| +[W0903 SEND W0914][RST R0092]---------------------------------|
| /* Sets the request. */
7.5 Time Setting
The Ethernet Port internal time is set from the T2N. This information is used as the time
information in the Ethernet Port event trace.
0:Write enabled
1:Write protected
Special registers
Counter registers
Timer registers
PC internal file registers
Expansion file registers (IC card)
Input/output registers
Link registers
Link relay registers
Auxiliary registers
Data registers
