Emerson Rosemount 702 - 6.2.3 Dual input, opposing contact logic

Figure 6-3: Dual Input, Limit Contacts
A. TRUE
B. FALSE
Table 6-2: Dual Input, Limit Contact Logic
Switch input Wireless output
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)
6.2.3 Dual input, opposing contact logic
When configured for Opposing Contact Logic, the Rosemount 702
Transmitter will accept the input from a double pole single throw switch on
inputs CH1 and CH2, and will use opposing contact logic for the
determination of the wireless outputs.
April 2021 Quick Start Guide
Quick Start Guide 21