Campbell CR800 Series - Measurement and Control Peripherals - Details; Analog Input Modules

Section 8. Operation
393
V
o
= 4.9 V – (330 Ω • I
o
)
Where V
o
is the drive limit, and I
o
is the current required by the external device.
Figure Current Sourcing from C Terminals Configured for Control
(p. 393) plots the
relationship.
FIGURE 93: Current sourcing from C terminals configured for control
8.4 Measurement and Control Peripherals — Details
Related Topics:
• Measurement and Control Peripherals — Overview (p. 82)
• Measurement and Control Peripherals — Details
(p. 393)
• Measurement and Control Peripherals — Lists
(p. 562)
Peripheral devices expand the CR800 input and output capacities. Some
peripherals are designed as SDM (synchronous devices for measurement) or
CDM (CPI devices for measurement). SDM and CDM devices are intelligent
peripherals that receive instruction from, and send data to, the CR800 using
proprietary communication protocols through SDM terminals and CPI interfaces.
The following sections discuss peripherals according to measurement types.
8.4.1 Analog Input Modules
Read More For more information see appendix Analog Input Modules —
List (p. 562).
Mechanical and solid-state multiplexers are available to expand the number of
analog sensor inputs. Multiplexers are designed for single-ended, differential,
bridge-resistance, or thermocouple inputs.