Specifications

PR 5220 Operating Manual Installing the Instrument

Sartorius 19

3.2.2 RS-422/485 Interface

The interface is intended for connecting a PR 1627 type remote display, a PR 1628 terminal or a PC for data

transmission using the SMA protocol.

Connection method:

4-pin plug-in terminal block

Number of channels /

type:

1 RS-422 / RS-485 , full / half duplex

Transfer rate (Bits/s):

300, 600, 1200, 2400, 4800, <9600>,

19200

Bits / stop bits:

<8 / 1> or 7 / 1

Parity:

Signals:

RxA (R-), RxB (R+), TxA, TxB

Electrical isolation:

Yes

Cable length:

Max. 1000m

Cable type:

Shielded twisted pair (e.g. LifYCY 2x2x0.20)

<...> = default settings (factory settings)

Connection of a PR 1627 remote display or of a PR 1628/00, -/60 or -/24 terminal

(over the PR 1604 interface)

The following operations are possible from the

connected terminal / display:

Test

Set tare

Reset tare

Set zero

S300

ON <----- OFF ----->

2-wire connection (d) 4-wire connection

(d) Receiver terminating resistor 'ON' Receiver terminating resistor 'OFF'

(d) Transmitter (rec.) terminating resistor 'ON' Transmitter (rec.) terminating resistor 'OFF'

Calibration data and parameters secured (d) Calibration data and parameters not secured

(d) - default = factory setting