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AMS “EXT/RS485 “ MODEL
On demand the pump can be supplied with
serial interface
, installed in the pump electronic circuit.
Specific requests
are accepted when ordering.
RS485 transmission provides serial connection and requires two wires and screen. Using
a 120 Ohm impedance-line, perfectly balanced, it is possible to connect up to 1 Km distance without intermediate am-
plifiers. A maximum of 20 pumps can be connected on the same line without intermediate amplifiers. The line needs as
terminal-closing a resistance of 120 ohm, 1/2 Watt. Pump running with serial programming responds only when required.
The reply message contains all data shown on the display (see paragraph “Display Information”), including the number
of the pulses released by the pump while running. The pump is connected via serial to any remote central station, utilising
the mainframe which can be a computer or other system. It is possible to program the running mode, modify parameters,
start and stop the pump. The pump also can communicate with a PC. However, the transmission protocol is often not
compatible with that of the pump. It is therefore necessary to install an external interface card. To interface a PC and one
or more pumps, a customized program must be created according to the system requirements.
11. AMS EXT / RS485 model
Summary of Contents for AMS DIGITAL
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