Rosemount 702, Reference Manual

Page: 37 / 68

Reference Manual
00809-0200-4702, Rev BA
June 2010
5-3
Rosemount 702
If inverted output is selected, any outputs will be inverted, as shown below.
Dual Input, Limit Contact Logic
When configured for Limit Contact Logic, the 702 Discrete Transmitter will
accept the input from two single pole single throw switches on inputs S1 and
S2, and will use limit contact logic for the determination of the wireless
outputs. The following tables describe the wireless outputs available when
using limit contact logic.
Figure 5-3. Dual Input, Limit
Contacts
If inverted output is selected, any outputs will be inverted, as shown below.
Single or Dual Input, No Logic
Switch Input Wireless Output Switch Input
Wireless
Output
S1 PV S2 SV
Closed TRUE (1.0) Closed TRUE (1.0)
Open FALSE (0.0) Open FALSE (0.0)
Single or Dual Input, No Logic, Inverted Output
Switch Input Wireless Output Switch Input
Wireless
Output
S1 PV S2 SV
Closed FALSE (0.0) Closed FALSE (0.0)
Open TRUE (1.0) Open TRUE (1.0)
Dual Input, Limit Contact Logic
Switch Inputs Wireless Outputs
S1 S2 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)
Dual Input, Limit Contact Logic, Inverted Output
Switch Inputs Wireless Outputs
S1 S2 PV SV
Open Open FAULT(NaN) FAULT(NaN)
Open Closed TRUE (1.0) TRUE (1.0)
Closed Open FALSE (0.0) FALSE (0.0)
Closed Closed TRAVEL (0.5) TRAVEL (0.5)
Dual Input
Limit Contacts
S1
CMN
S2
CMN