
Configuration and Use Manual
173
Flowmeter Installation Types and Components
Dia
g
ra
ms
Model 250
0
C
IO
Mode
l 15
00 AN
Defaults
Figure B-6
Terminal configuration – Model 1500
Figure B-7
Terminal configuration – Model 2500
Terminals 21 & 22 (Channel A)
mA1 output
Internal power only
HART (Bell 202) communications
Terminals 23 & 24 (Channel B)
Not used
Terminals 31 & 32 (Channel C)
FO
Internal power only
No communications
mA = milliamp
FO = frequency output
Terminals 33 & 34
Service port
OR
Modbus RS-485
(Modbus RTU or Modbus ASCII)
Terminals 21 & 22 (Channel A)
mA1 output
Internal power only
HART (Bell 202) communications
Terminals 23 & 24 (Channel B)
mA2 output
OR
FO
OR
DO1
Power:
• mA – internal only
• FO or DO1 – internal or external
No communications
Terminals 31 & 32 (Channel C)
FO
OR
DO2
OR
DI
Power: internal or external
No communications
mA = milliamp
FO = frequency output
DO = discrete output
DI = discrete input
Terminals 33 & 34
Service port
OR
Modbus RS-485
(Modbus RTU or Modbus ASCII)
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