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Instructions en Français
Bedienungsanleitung auf Deutsch
Instruziana in Italiano
Instrucciones en Español
This manual provides general information about the ARC (Addressable
RS232 Chain) system plus details specific to the TF830-RS232, e.g.
address and baud rate selection, commands, etc.
The TF830 Instruction Manual gives the specification, installation instruc-
tions and full details of manual operation for the TF830.
Page
INTRODUCTION
1
The ARC interface allows a collection of instruments, up to a maximum
2
of 32, to be connected to a single serial interface on a PC or other
2
computer system. Each instrument may then be uniquely addressed so
that commands for that instrument may be sent and ignored by all other
5
instruments connected to the interface. Additionally, ARC instruments
5
may be used on a simple RS232 interface in non-addressable mode
without modification.
7
Available as an option is the ARCTALK software package for IBM
8
compatible PCs. At the simplest level, ARCTALK provides realtime direct
8
control of instruments on the ARC bus from the PC's keyboard. However,
11
it can be used more effectively to create complete 'programs' within
which several instruments can be set-up and/or measurements read-
back; responses can be captured in a 'response' file for later use, eg.
13
by another application which could, for example, generate a graph of
14
the data.
14
17
ARC INTERFACE CONNECTIONS
The 9-way D-type serial interface connector is located on the instrument
19
rear panel. The pin connections are as shown below:
20
Pin
20
22
25
26
26
29
Pins 2, 3 and 5 may be used as a conventional RS232 interface with
XON/XOFF handshaking. Pins 7, 8 and 9 are additionally used when the
instrument is connected to the ARC interface.
Name
Description
1
-
No internal Connection
2
TXD
Transmitted data from TF830
3
RXD
Received data to TF830
4
-
No internal connection
5
GND
Signal ground
6
-
No internal connection
7
RXD2
Secondary received data (see diagram)
8
TXD2
Secondary transmitted data (see diagram)
9
GND
Signal ground
1
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