Badger Meter ER-500, Programming Manual

Modbus

The Modbus output parameter can be either enabled or disabled  When enabled, this output allows communications with the 

ER-500 monitor using the Modbus RTU protocol  For additional information see 

Modbus Interface on page 27

At the 

Modbus

 prompt, press 

ENTER

  The current state of the Modbus output is shown  If the current state is correct, press 

ENTER

 to advance to the next parameter  To change the modbus setting, press 

UP

 or 

RIGHT

to toggle between states  When 

the proper state displays, press 

ENTER 

to save and advance to the 

BusAddr

 parameter 

Bus Address

If the Modbus output is enabled, you must choose a valid Modbus address  Every device communicating over the RS485 

communications bus using the Modbus protocol must have a unique bus address  Address values range from 0…127 with 0 

being the default 
At the 

BusAddr

 prompt, press 

ENTER

  The first digit of the address flashes  If the current setting is correct, press 

ENTER

 to 

advance to the next parameter  To change the address, press 

UP

 to increment the display digit until it matches the first digit 

of the new bus address  Press 

RIGHT

 to advance to the next digit  Repeat for all digits of the address  Press 

ENTER

 to save the 

new address and advance to the 

SetPt 1

 parameter 

Setpoints

Setpoints allow the meter to signal when a specific flow condition has been achieved  They are commonly used to indicate 

high or low flow conditions that need attention  The ER-500 monitor has two open collector outputs controlled by the 

setpoint function 
The setpoint transistors have the same current limitations and setup requirements as the totalizing pulse output transistors 

described previously  See 

Figure 12 on page 23

 for control output transistor connections 

Both setpoint 1 and setpoint 2 are configured using the same procedures, but the hysteresis and tripping conditions can be 

different for each setpoint output 

OTEE:

N

In most instances, the current capacity of an open collector transistor is not sufficient to operate old style counters 

that relied on relay contact closures  When used with basic counting circuits, a solid-state relay is needed  See 

Figure 

13 on page 23

 for a connection example

.

Programming

DSY-PM-00028-EN-02

Page 22 

February 2017