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Internode Test Section 9-3
Test Procedure
1,2,3... 1. Write the test parameters into PC memory. The test parameters are de-
scribed following this procedure.
2. Turn ON the Internode Test Start Switch allocated to the Ethernet Unit in
the CPU Bus Unit Area. The Internode Test Start Switch is described fol-
lowing the test parameters. This will begin the internode test.
3. If desired, the test parameters can be changed while the internode test is
actually running. Use the same procedure as used in step 1.
4. Turn OFF the Internode Test Start Switch allocated to the Ethernet Unit in
the CPU Bus Unit Area to stop the test.
Note 1. The test parameters are effected as soon as they are set or changed. It is
not necessary to reboot or restart. If the test parameters are changed dur-
ing the test, however, the new parameters will not be used until the Intern-
ode Test Start Switch is turned OFF and then back ON.
2. Line traffic on the Ethernet network will increase during the test, possibly
affecting system performance.
Setting the Test Parameters
Before starting the test, set the following parameters in the software switches
in the words in the DM area allocated to the Ethernet Unit. The test parame-
ters become effective immediately after they are set. It is not necessary to
reboot or restart the PC.
Configuration of the
Software Switches
The software switches are stored at offsets from the first word calculated with
the formula: first word = D03000 + (100 x unit number).
Setting Range The parameter setting ranges are given in the following table.
Note 1. The following limits apply to the number of bytes sent when running the test
through a SYSMAC NET or SYSMAC LINK network:
SYSMAC NET: 1,986 bytes
SYSMAC LINK: 512 bytes
2. Broadcast transmissions (target node address = FF) cannot be used for
the internode test.
3. A timeout error will occur if no response is received within the set response
monitor time.
Offset Contents
+0 Bits 8 to 15:
Remote network address
Bits 0 to 7:
Remote node number
+1 Number of send bytes
+2 Response monitor time
Parameter Range
Remote network address 00 Hex: Local network
01 to 7F Hex (1 to 127 decimal)
Remote node number 01 to 7E Hex (0 to 126 decimal)
Number of send bytes 0000 Hex specifies the max. length of 1,996
bytes.
0001 to 07CC Hex (1 to 1996 decimal)
Response monitor time
(Unit: 10 ms)
0000 Hex specifies 2 s.
0001 to FFFF Hex (1 to 65535 decimal)