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OPEN <channel_address>[,<channel_address>,<channel_address>...]
5
Chapter 5 Remote Interface Reference
3488 Mode Commands
Open one or multiple channels/bits on the plug-in modules.
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:
3499A
slots 0 through 5
3499B
slots 0 through 2
3499C
slots 0 through 9
The channel number, nn, is plug-in module dependent. Channel
numbers for plug-in modules are listed on page 70.
Several channels/bits can be opened with one OPEN command by
separating the channel/bit addresses with a comma. If more than one
channel/bit is specified, they are opened in the order listed. Use CARD
RESET command to open all channels/bits on the modules, it is easier
than listing each channel/bit.
When OPEN is used with the DIO modules (44474A, N2263A, N2264A,
N2265A), the DIO modules must be in either default Static Mode #1 or
Static Mode #2. Using the OPEN command in any other mode will cause
an error. In these modes there is no read or write handshaking.
The bits 091-094 on the 4-bit built-in digital I/O can be also included in a
channel_address.
All the channels in the plug-in modules are opened following a reset. For
the DIO modules, all bits are operating as input bits. There is no
handshaking enabled.
OUTPUT 709; "OPEN 103,105,113,116"
124
! Open channels 3, 5, 13, 16 in
Slot 1.
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