User`s manual

104

Chapter 5 Remote Interface Reference

3488 Mode Commands

CHAN [<channel_address>]

Opens the last channel/bit closed by either STEP or CHAN command

and then closes the specified channel/bit.

The channel_address has the form @snn, where s is the slot number and

nn is the channel number. For all mainframes, slot 0 refers to the 3499A/

B/C control board. Valid slot numbers are:

The channel number, nn, is plug-in module dependent. Channel

numbers for plug-in modules are listed on page 70.

If no channel/bit is specified with CHAN, the 3499A/B/C will respond with

the number of the last channel closed. If no channel has been closed since

the last reset, then CHAN returns the number 0.

If a Scan List is in effect when CHAN is executed, the 3499A/B/C will

search through the list and position the Scan List pointer to the channel

specified by CHAN. If CHAN specifies a channel that is not in the Scan List,

and then STEP is executed, the 3499A/B/C will open the channel closed

by CHAN and go to the beginning of the Scan List.

OUTPUT 709; “CHAN 203”

! Close channel 203.

OUTPUT 709; “CHAN

ENTER 709; A

DISP A

3499A slots 0 through 5

3499B slots 0 through 2

3499C slots 0 through 9