User manual

Relay Multiplexer Command Reference 77Chapter 3
[ROUTe:]OPEN
[ROUTe:]OPEN <channel_list> opens the multiplexer channels specified
by channel_list. Channel_list has the form (@ss0hbc) where ss = card
number (00-99), 0h = one-wire mode only high/low switching (00 or 01),
b = bank number (0-7), and c = channel number (0-7).
Parameters
Comments One-Wire Mode (WIRE1): When opening a channel in one-wire mode, the
HI or LO line must be selected using channel_list. 01 selects HI and 00
selects LO. If one-wire mode is selected, and a four-digit channel number
is used, the LO line is selected.
Two-Wire Mode (WIRE2): Switches both the HI and LO terminals of a
channel in banks 0 through 3 or banks 4 through 7 to that bank’s HI COM
and LO COM terminals
Two-Wire Mode (WIRE2X64): Switches the HI and LO terminals of a
channel in banks 0 through 7 to that bank’s HI COM and LO COM
terminals. A maximum of 64 two-wire channels can be switched. This
mode is available via E1406A (Switchbox Rev. A06.00 or later). Prior to
this revision, closing control relay 0995 in two-wire mode will change the
card configuration to a single 64-channel two-wire multiplexer.
Three/Four-Wire Modes (WIRE3/WIRE4): When opening a channel in
three-wire or four-wire modes, only the lower bank (0-3) is specified. The
upper bank pair (4-7) will automatically open the specified channel. If an
attempt is made to open the upper bank pair (4-7) channels, an error will
be generated.
Opening Channels: To open:
• a single channel, use ROUT:OPEN (@ssbc) or (@ss0hbc)
• multiple channels, use ROUT:OPEN (@ssbc,ssbc,...) or
(@ss0hbc,ss0hbc,...)
• sequential channels, use ROUT:OPEN (@ssbc:ssbc) or
(@ss0hbc:ss0hbc)
• groups of sequential channels, use ROUT:OPEN (@ssbc:ssbc,
ssbc:ssbc) or (@ss0hbc:ss0hbc, ss0hbc:ss0hbc)
• or any combination of the above
Name Type Range of Values Default
<channel_list> numeric ss[00]00 to ss0177
ss00 to ss77
ss00 to ss037
ss00 to ss037
1-wire
2-wire
3-wire
4-wire