EPS RS 232, Руководство пользователя

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Ext. Control: Computer
28
0 1 0 Command
0 1 1 Range
1 0 0 Unit
1 0 1 Hardware
1 1 0 Read
If echo is on, the interface confirms each incoming character by sending the same character back to the sender. The
interface parameters can be adjusted via software and the command
<PCx>
. These settings can be saved with the
command
<SS>
.
Interface Reconfiguration
In case, the user has forgotten the active setup, there are two ways of reconfiguring the interface:
•
sending the command
<PCx>
from one of the other interfaces
•
using the display to configure the interface Interface Parameters
RS485 I
NTERFACE
The interface works with the following parameters:
Baud rate:
1200, 2400, 4800, 9600, 14400, 19200, 38400, 57600, 62500, 115200
Parity: O = Odd = uneven parity
E = Even = even parity
N = None = no parity bit
Number of data bits: 7 or 8
Number of stop bits: 1 or 2
Timeout: 0-100 ms
A timeout is the time between receipt and sending of a message. The connected device is selected by entering the
command and placing the number of the device and ‘#’ before it. When using the word ‚ALL‘ instead of a number, the
following command will be executed by all connected devices (e. g.
#1,ID; #22,GTR, #ALL,GTL ).
Example:
#1,ID
#22,GTR
#ALL,GTL
The status word can be read with the command
<STB>
or
<*STB?>
. The following functions are assigned to the bits:
Bit Function
D15 Parity error
D14 Over run error
D13 Framing error
D12 Timeout error
D11 n/a
D10 n/a
D9 n/a
D8 n/a
D7 Parity enable
D6 Parity mode (1 = odd, 0 = even)
D5 Stop bit (1 = 2 Stop bits; 0 = 1 Stop bit)
D4 Data format (1 = 8 bit; 0 = 7 bit)
D3 n/a
D2 Table
D1 Table
D0 Table
Table: Error messages
D2 D1 D0 Error
0 0 1 Syntax