Register Definitions B
E6198B Switch/Load Unit User Manual B-15
Agilent E6176A 16-Channel High-Current Load Card
The Agilent E6176A Load Card is designed for high-current
loads mounted outside the load card. The card provides current
sense, pull-up/down, and flyback protection. The card also
provides Card Type, Card Configuration, and Status readback of
the built in relay timers. See “Using the Agilent E6176A
16-Channel Load Card" for more information.
Register definitions for the card follow:
Card Type (R) Base + 0
h
This register reads back the Card Type (02
h
) of the card.
• Read Only
• Power On/Reset State = 02
h
Card Configuration (R) Base + 1
h
This register reads back the Card Configuration. The Card
Configuration is determined by the user to distinguish different
load configurations of the same load card type.
• Read Only
• Undefined bits readback as all 1s
Status (R) Base + 2
h
This register reads back the card's status. Currently the status is
defined as the state of the relay timer. The relay timer has two
timers wire-OR'd together. One timer is designed for the slower
armature relays (>16 ms) and the second designed for the faster
reed relays (>500 μs). The timers restart whenever the registers
Bit 7-0
Purpose
Card Type
Setting 02
h
Bit 7-0
Purpose
Card Configuration
Setting state
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