Rs485 Interface - SAES SIP POWER User Manual

Analog Output voltage versus IP current
10
8
6
4
2
0
1E-9 1E-8
Voltage is referenced to GND pin; minimal load resistance is 100 kΩ.
8.3.

RS485 Interface

For communication, the RS485 standard serial interface is used on two-wire. Communication
channels are galvanically separated from the frame of the supply.
Default communication baud rate for RS485 is 38400, 8 data bits, 2 stop-bit, without parity bit, flow
control none.
Default Modbus slave address is 11 (broadcast is 255).
Control of the supply by means of serial interfaces is described in following chapters.
M.HIST.0109.23 Rev.1
1E-7 1E-6
USER MANUAL - SIP POWER ION PUMP CONTROLLER
1E-5 1E-4
I [A]
Pin Meaning
5 GND
4 RS485 –
3 RS485 +
1E-3 1E-2
ground connection
negative com. line
positive com. line
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1E-1