Rs-232-C Interfaces, Inputs And Outputs; Parameterisation Of The Rs Interface - SCHOTT TITRONIC 110 plus Manual De Instrucciones

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5.1

RS-232-C interfaces, inputs and outputs

®
The TITRONIC 110 plus Piston Burette is equipped with two serial interfaces (RS-232-C) (Fig. 15, item 4
and item 5) for data communication with other devices.
You can use these two interfaces to connect several devices to one interface of a PC. Using PC programs
such as TitriSoft, a large number of titration, dosing, and sample-preparation tasks can be realised.
Interconnection is always made according to the same principle. Make a connection from the PC to inter-
face 1 of the first device, then make a connection from interface 2 of the first device to interface 1 of the
second device; subsequently, use interface 2 of the second device to connect the next device etc. In this
way up to 16 devices can be connected to, and addressed by, one PC interface. The devices are ad-
dressed through one individual address which has to be set uniquely for each device. All the devices and
the PC have to be set to the same transfer parameters.
The plug connectors of these interfaces are located on the back panel of the device. The "RS 1" socket
forms the connection to a connected PC or titration device equipped with a serial interface. The "RS 2"
socket can be used to connect further devices within the titration system, also in chained mode.
PIN assignment of the RS-232-C interfaces:
Pin no.
2
3
5.2

Parameterisation of the RS interface:

Please note: Any modification of the data parameters requires a connected keyboard. The data transfer
parameters are set using parameter keys on the keyboard.
Setting the data transfer parameters
The ex-factory setting of the data transfer parameters is 4800 baud, 7 bits, 1 stop bit, and No Parity (this
corresponds to mode: r 7 n 1). This basic setting is valid for operation using SCHOTT titration devices.
If you are using earlier SCHOTT titration devices, you may also use the 7 2 n STANDARD mode of these
devices.
The possible parameter sets - to be set through the <Param 1> (F6) menu - are:
Parameter mode Data bits
r 7 n 1
r 8 n 1
r 7 E 1
r 8 E 1
r 7 o 1
r 8 o 1
Fig. 16 Example of the standard RS parameter display
Connections and data transfer
Signification
R x D data input
T x D data output
Stop
7 1
8 1
7 1
8 1
7 1
8 1
Pin no. Signification
8
5 Digital mass
Parity
no (Standard setting)
no
even
even
odd
odd
CTS