38
Using the Relay Driver Module
Example: Closing
a Channel
(72-Channel Mode)
This example shows how to close a channel for the Relay Driver Module
in 72-channel mode. For 72-channel mode, OPEN opens the specified
channel(s) and CLOSe closes the specified channel(s). If more than
one channel is specified, all channels are opened or closed nearly
simultaneously, but the actuation order is not guaranteed. To set
72-channel mode, CNFG 0 must not be connected to GROUND.
Typical Connections
Figure 3-1 shows typical connections to Channel 36. The +12V internal
supply is applied to the external relay.
SCPI Commands
To close channel 36, the command is CLOSe (@136) where 1 is the card
number and 36 is the channel number. When this command is executed,
channel 36 is closed, allowing current to be sunk.
Figure 3-1. Example: Closing a Channel (72-Channel Mode)
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