Badger Meter FC-5000 User Manual page 14

Installing the Flow Display
Digital Inputs and Outputs
The FC-5000 Flow Display has six independent channels available for digital input�
The channels accept TTL voltage signals in the 0...5V DC range� The control inputs
are triggered when the voltage signal on the pin is pulled low (active low)� Input
range for a logic low signal is 0...1V, logic high is 4...5V�
Connector Pin
1
2
3
4
5
6
7
8
Communications
The FC-5000 Flow Display comes with a Modbus (RTU or ASCII) communication
protocol� Signals are transmitted over an EIA-485 (RS-485) physical layer�
Connector Pin
1
2
3
4
Page 14
TB2 (DIG I/O)
Function
Excitation or Power
Input/Output 1 Signal
Input/Output 1 Signal
Input/Output 1 Signal
Input/Output 1 Signal
Input/Output 1 Signal
Input/Output 1 Signal
Ground or Neutral
Table 2: Digital inputs
TB8 (OS485)
Function
Shield (Chassis GND)
Negative (–)
Positive (+)
Output Ground
Table 3: Communications input
CTL-UM-02765-EN-01
Oeference Pin
5
6
7
8
9
10
11
12
Oeference Pin
36
37
38
39
April 2019