Siemens HydroRanger 200 Instruction Manual download pdf (Page 56)

Page 42 HydroRanger 200 – INSTRUCTION MANUAL 7ML19981FC01

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mA I/O

To integrate the HydroRanger 200 with other equipment, use the mA input and outputs.

The mA input can be used as a level measurement or can be passed on to a SCADA

system.

mA Input

Level Reading Parameters

To pass the mA input on to a SCADA system, read the value from the appropriate

communication registers. For more information, see the

Communications

section on

page 83.

mA Output

The HydroRanger 200 has two mA outputs, used to send measurements to other devices.

Configuring the mA output to send a 4 to 20 mA signal scaled from 10% to 90% of span of

the second transducer:

Parameter Index Value Description

P004 1 250 Transducer = mA input 1

P250 1 2 Scale = 4 to 20 mA

P251 1 0 4 mA = 0% of span

P252 1 100 20 mA = 100% of span

P253 1 0 Do not damp the input signal

Parameter Index Value Description

P200 1 2 set to 4 to 20 range

P201 1 1 send mA proportional to level reading

P202 1 2 base mA on level point 2

P210 1 10

set 4 mA at 10% of span

If the level reading drops below 10% of span, the mA output drops below

4 mA.

P211 1 90

set 20 mA at 90% of span

If the level reading rises above 90% of span, the mA output rises above

20 mA.

P219 1 0 set failsafe action as 0 mA

Note: When a mA input parameter is accessed, a mA symbol appears in the upper left

corner of the LCD display.

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Siemens HydroRanger 200 Instruction Manual Page 56