Remote Operation - Aim TTi LCR400 Manual De Instrucciones

General
The instrument can be remotely controlled via its RS232 interface.
At power-on the instrument will be in the local state with the REMote indicator off. When a
command is received the remote state will be entered and the REMote indicator will be turned on.
The keyboard is not locked out and the instrument may be returned to the local state by pressing
any key; however, the effect of this action will only remain until the instrument receives another
character from the interface, when the remote state will once again be entered.
Remote command format and the remote commands themselves are detailed in the Remote
Commands chapter.
RS232 Connector
The 9-way D-type serial interface connector is located on the instrument rear panel. The pin
connections are as shown below:
Pin
1
2
3
4
5
6
7
8
9
Connect to a PC with a cable which has pins 2, 3, 5, wired plus pins 1, 4, 6 and pins 7 and 8,
linked at the PC end, see diagram. Alternatively, since the links are also made at the instrument
end, a fully-wired 1-to-1 cable may be used.
The interface parameters are fixed as follows:
RS232 Character Set
Any ASCII code can be used. Bit 7 of ASCII codes is ignored, i.e. assumed to be low. No
distinction is made between upper and lower case characters in command mnemonics and they
may be freely mixed. The ASCII control codes between 00H and 31H are ignored, except for 0AH
(Line Feed, LF) which is used as a command terminator.
Name Description
DCD Linked to pins 4 and 6
TXD Transmitted data from instrument
RXD Received data to instrument
DTR Linked to pins 1 and 6
GND Signal ground
DSR Linked to pins 1 and 4
RTS Linked to pin 8
CTS Linked to pin 7
- No internal connection
Baud Rate:
Start Bits: 1
Data Bits: 8

Remote Operation

9600
Parity: None
Stop Bits: 1
17