Emerson Rosemount 702 - Page 96

86
Reference Manual
00809-0200-4702, Rev CA
Section 9: Operation and Maintenance: Models 702DX32 and 702DX42
February 2013
Operation and Maintenance: Models
702DX32 and 702DX42
Figure 9-3. Dual Input, Limit Contacts
Dual Input, Opposing Contact Logic
When configured for Opposing Contact Logic, the 702 transmitter will accept the input from a
single pole double throw switch on inputs CH1 and CH2, and will use opposing contact logic for
the determination of the wireless outputs. The following tables describe the wireless outputs
available when using opposing contact logic.
Dual Input, Limit Contact Logic
Switch Inputs Wireless Outputs
CH1 CH2 PV SV
Open Open TRAVEL
(0.5)
TRAVEL (0.5)
Open Closed FALSE (0.0) FALSE (0.0)
Closed Open TRUE (1.0) TRUE (1.0)
Closed Closed FAULT
(NaN)
FAULT(NaN)