Remote Operation; Address And Baud Rate Selection; Remote / Local Operation - Promax GR-205 Manuel D'instructions

USER'S MANUAL. GR-205

5 REMOTE OPERATION

The GR-205 can be remotely controlled via its RS232 or GPIB interfaces. When
using RS232 it can either be the only instrument connected to the controller or it can be
part of an Addressable RS232 Chain (ARC) which permits up to 32 instruments to be
addressed from one RS232 port.
Some of the following sections are general and apply to all 3 modes (single
instrument RS232, ARC and GPIB); others are clearly only relevant to a particular
interface or mode. It is only necessary to read the general sections plus those specific
to the intended remote control mode.
Remote command format and the remote commands themselves are detailed in
the Remote Commands chapter.

5.1 Address and Baud Rate Selection

For successful operation, each instrument connected to the GPIB or
Addressable RS232 Chain (ARC) must be assigned a unique address and, in the case
of addressable RS232, all must be set to the same Baud rate.
The instrument's remote address for operation on both the GPIB and RS232
interfaces is set on the COMMS menu, accessed by pressing the COMMS key. With 
 
the selection cursor in the ADDRESS field the address can be changed using the
rotary control or
the factory default is address 1. The address setting is ignored in single instrument
RS232 operation.

With the selection cursor in the REMOTE field, the rotary control or
keys can be used to select GPIB or RS232 with Baud rates of between 300 and 19200;
the factory default selection is RS232 at 9600 Baud.

5.2 Remote / Local Operation

At power-on the instrument will be in the local state with the REMOTE lamp off.
In this state all keyboard operations are possible. When the instrument is addressed to
listen and a command is received the remote state will be entered and the REMOTE
lamp will be turned on. In this state the keyboard is locked out and remote commands
only will be processed. The instrument may be returned to the local state by pressing
the LOCAL key; however, the effect of this action will only remain until the instrument is
addressed again or receives another character from the interface, when the remote
state will once again be entered.
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keys. On this instrument addresses 0 to 30 inclusive are allowed;
 
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