Connect Discrete Output to Relay or Control System Input
Figure 6-9:
B
A
A.
Control relay or input
B.
5–28 VDC power supply
Note
Total loop impedance must be sufficient to keep loop current below maximum rating. A resistor can
be added in the loop to raise impedance.
For discrete output control, connect the power source and control relay to the transmitter.
To connect external power for discrete output control, complete the following steps:
Procedure
1.
Ensure the power source and connecting cable meet the requirements outlined
previously.
2.
Turn off the transmitter and discrete power sources.
3.
Run the power cable to the transmitter.
4.
Channel 1: Connect -DC to terminal 5, cDC to terminal 6.
5.
Channel 2: Connect -DC to terminal 7, cDC to terminal 8.
6.2.3
Connect discrete input
•
For HART version 5.4 firmware, the discrete input can provide positive zero return
(PZR) or net totalizer reset.
•
For HART version 5.5 or 7.1 firmware, the discrete input can provide positive zero
return (PZR) or reset totalizer (A, B, C, or all totals).
Note
If a particular totalizer is configured to be not resettable, the totalizer will not be reset with
this function.
Advanced installation details
60
Rosemount
®
8732EM Transmitter with HART Protocol Reference Manual
Summary of Contents for Rosemount 8732EM
Page 2: ......
Page 6: ...Contents iv Rosemount 8732EM Transmitter with HART Protocol Reference Manual ...
Page 10: ...Safety messages 4 Rosemount 8732EM Transmitter with HART Protocol Reference Manual ...
Page 14: ...Introduction 8 Rosemount 8732EM Transmitter with HART Protocol Reference Manual ...
Page 30: ...Sensor Installation 24 Rosemount 8732EM Transmitter with HART Protocol Reference Manual ...
Page 92: ...Operation 86 Rosemount 8732EM Transmitter with HART Protocol Reference Manual ...
Page 158: ...Maintenance 152 Rosemount 8732EM Transmitter with HART Protocol Reference Manual ...
Page 214: ...Product Certifications 208 Rosemount 8732EM Transmitter with HART Protocol Reference Manual ...
Page 217: ...Wiring 8732EM using combination cable Figure C 2 Wiring Diagrams Reference manual 211 ...
Page 222: ...Wiring Diagrams 216 Rosemount 8732EM Transmitter with HART Protocol Reference Manual ...
Page 253: ...Implementing a Universal Transmitter Reference manual 247 ...