Millimar C 1240 User Manual

58
Mahr GmbH, Millimar C1208/C1216/1240
14 Using the serial interface (RS 232)
14.1 Selecting the interface protocol
“Interface protocol” refers to the way in which
different devices exchange data. As the Millimar
C 1208/C 1216/C 1240 can be operated with a
wide range of devices (printers, computers, con-
trol devices, …), there is a broad selection of in-
terface protocols available:
OFF If the interface is not required
because no data is to be trans-
ferred, no interface protocol
should be selected.
ASCII The acquired measured values
or data from the measured value
memory are output by either-
pressing the Millimar DATA key
or at the end of the measure-
ment or continuously. This in-
terface protocol does not allow
data transfer to be initiated by a
connected PC.
OPTORSS The acquired measured values
or data from the measured value
memory are output either as set
under "SEND" or as requested
by a connected PC. Here, the
unit of measurement is output
along with the numerical value.
This type of protocoll is especially
common with handheld measur-
ing devices.
OPTORSD Millimar automatically sends the
measured values or data set-
tings requested by a connected
PC and ceases data transfer with
<CR><LF> (especially common
with handheld measuring de-
vices).
In order to transfer data via the serial interface
(RS 232), the interface has to be set (configured)
to user requirements and the measuring task in
question.
Appropriate settings must be used for the fol-
lowing parameters:
Interface protocol (PROTOCL)
Specify whether data is to be transferred in re-
sponse to a request or automatically or whether
external devices should also be able to change
parameter settings.
Data transfer format (FORMAT)
Specify the number of data bits and stop bits
with which values should be transferred and
whether a parity check should be performed.
Data flow control (HANDSHK)
Specify how data flow control should be ex-
ecuted between asynchronous devices without
losing data. This function specifies whether the
corresponding control signals are sent via addi-
tional lines parallel to the data lines, or whether
the signals (embedded in the data stream) are
sent over the data lines.
Transfer rate (BAUD)
Specify the rate (in bits per second) at which
data is to be transferred.
Frequency of transfer (SEND)
Specify whether data is to be transferred manu-
ally by pressing the DATA key or automatically
at the end of the measurement or continuously.
i
The data transfer format, the data
flow control and the transfer rate
must be equal for both devices
(partners)!.

Millimar C 1240 Specifications

General

Brand	Millimar
Model	C 1240
Category	Measuring Instruments
Language	English