I/O terminalsFigure E-3:
I/O terminals and functionsTable E-2:
Terminal Function
14 Frequency output, DC supply voltage (+)
15 and 16 Frequency/pulse output (+)
16 Return
17 Primary variable (PV+) mA output
18 Primary variable (PV–) mA output
19 Secondary variable (SV+) mA output
20 Secondary variable (SV–) mA output
21 and 16 Discrete input (Zero) (+)
22 and 16 Discrete output (Control output)
23 Signal ground
24 and 23 Temperature output (mV signal)
25 and 23 Tube period output
26 RS-485 I/O (A+): shared with Service port A on the user interface
27 RS-485 I/O (B–): shared with Service port B on the user interface
P DC power to pressure or DP transmitter
S mA input from pressure or DP transmitter
Transmitter components and installation wiring
Configuration and Use Manual 239
