User manual

Relay Multiplexer Command Reference 75Chapter 3

[ROUTe:]FUNCtion

[ROUTe:]FUNCtion <card_number>, <function> selects the operating

mode of the multiplexer channels. All channels on the card specified by

card_number operate in the specified mode. [ROUTe:] is NOT optional

when ROUT:FUNC is used with a scanning multimeter configuration.

Parameters

Comments ROUTe is Not Always Optional: If used with a scanning multimeter

configuration, ROUTe:FUNCtion must be used.

Command Not Always Used: This command is not required if the status

Using the FUNCtion Command: When using the FUNCtion command to

reconfigure the multiplexer to a different operating mode than the status

AFTER the card is

powered up.

One-Wire Mode (WIRE1): Switches either the HI or LO terminal of a

channel in banks 0 through 7, to the one-wire HI COM or one-wire LO

COM terminal. When closing a channel in one-wire mode, the HI or LO

line must be selected using channel_list. Only one of the 128 one-wire

channels can be switched at a time.

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-Wire Mode (WIRE3): Banks are paired 0/4, 1/5, 2/6, and 3/7.

Switches both the HI and LO terminal of a channel in bank 0-3, to that

bank’s HI and LO COM terminals. Also switches the LO terminal of the

channel in pair bank 4-7 to that bank’s LO COM terminal.

Name Type Range of Values Default

<card_number> numeric 01 to 99 N/A

<function> discrete WIRE 1 I WIRE 2 |

WIRE 2X64 I

WIRE 3 I WIRE 4

WIRE 2