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Option Board analog inputs switch settings
Section 3: Installation
Reference, Installation, and Operations Manual
June 2013
3-9000-743 Rev S
Figure 3-26 CPU Board Switch Banks S8 and S9
3.5.3
Option Board analog inputs switch settings
The Option Board provides the capability to sample analog temperature and pressure 4-20 mA
signals. These input signals are individually configurable for sinking or sourcing current via
Option Board switches as described in the tables below (
signals. These input signals are individually configurable for sinking or sourcing current via
Option Board switches as described in the tables below (
) and in
Daniel drawing DE-21056 (particularly page 3, notes 24, 25, and 28,
Group
Output
CPU Board
Switch
Switch
Switch Position
Internally
Powered
Powered
Open
Collector
Collector
1
DO1
S8-1
TTL
OC
DO2
S8-2
TTL
OC
Freq1A
S8-3
TTL
OC
Freq1B
S8-4
TTL
OC
2
DO3
S9-1
TTL
OC
DO4
S9-2
TTL
OC
Freq2A
S9-3
TTL
OC
Freq2B
S9-4
TTL
OC
S8 (Group 1)
S9 (Group 2)
If the analog input is configured for “Source” mode (i.e., powered by the meter), then it must
be at the bottom of the loop (stack).
be at the bottom of the loop (stack).