Parameter
Value
Baud rate
1200 (see "Baud Rate" on page 29 to
change this setting)
Parity
none
Bits
8
Stop bits
1
Handshake
none
Table 3: RS-232 settings
The following figure shows the pin assignment of the RS-232 connection.
Pin assignment (female)
2. TxD (to RxD on computer)
3. RxD (to TxD on computer)
5. Ground
Figure 28: Pin assignment of the RS-232 connector
4.1.2 IEEE-488
In order to use the IEEE-488 communication, you need to set the address. Please refer to "HPIB Address" on page 27
Each IEEE-488 command that sets a parameter is acknowledged by the PU IQE 12/38 with the string “RDY”. If the
usage of service request (SRQ) is enabled, each change in the operating status immediately leads to a service request.
4.1.3 CAN
For details of how to use the CAN-bus for remote control, please contact SPECS support.
4.2 Comma nds
This section contains the commands that you can use for remote control of the PU IQE 12/38.
The following points are relevant when using these commands to control the unit:
■
For all commands that have a parameter the current value can be queried by replacing a parameter value
by a question mark.
■
Commands can be grouped into one line by separating single commands with a “;”.
■
Grouped commands are acknowledged by a single “RDY” or “OK”.
■
Commands are case-insensitive.
■
All ASCII strings followed by question mark are a status request or value request for the respective parameter.
The following tables show the available commands grouped by type.
Commands without parameters
32
April 26, 2013
PU IQE 12/383.0
Chapter 4 Remote Control
