6 F 3 B 0 3 6 2

7.3 Remote Port Verification Request

This request verifies the existence of the specified remote port, and corresponds to the UNIX ping command. This request can be issued when the Ethernet Port operating mode is either run or standby mode. The Ethernet Port will respond to this request if its operating mode is either run or standby mode.

Remote port verification request (using the SEND instruction)

a.Function

This is a request that verifies the existence of the specified remote port.

b.Transfer parameters

A A+1 A+2 A+3

3100H

CMD = 0014H

D- IP address

Module designation

CMD number

IP address of the remote station whose existence is to be verified.

(The input format is the same as that for the parameter setup request.)

c.Status (See figure 4.3 for details on bits C, D, E and F.)

B B+1

F E D C B A 9 8 7 6 5 4 3 2 1 0

 

 

 

 

0

0

0

0

TermSTS

Detailed information (Only valid when TermSTS = 0BH.)

d.Important items

This request is possible in run and standby modes. (The IP address of the local port must be set up.)

The Ethernet Port returns a response to this request in run and standby modes. (The IP address of the local port must be set up.)

If the remote port exists:

Normal return

If the remote port does not exist (within 4 seconds):

Status:

Transmission error (TermSTS = 0BH)

Detailed information: Timeout occurred (0020H)

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Toshiba T2N Remote Port Verification Request, Remote port verification request using the Send instruction