EPS RS 232 - External Control - Computer Interfaces; GPIB Connection and Addressing

Ext. Control: Computer
EXT. CONTROL: COMPUTER
GPIB
Connection is carried out with a 24pin Centronics connector. The device address is adjusted with the DIP switches S1-
S5. Here, S1 has the lowest priority and S5 the highest.
No Name Function
1
DIO1
Data line 1
2
DIO2
Data line 2
3
DIO3
Data line 3
4
DIO4
Data line 4
5
EOI
End or Identify
6
DAV
Data Valid
7
NRFD
Not Ready For Data
8
NDAC
No Data Accepted
9
IFC
Interface Clear
10
SRQ
Service Request
11
ATN
Attention
12
SHIELD
Shield
13
DIO5
Data line 5
14
DIO6
Data line 6
15
DIO7
Data line 7
16
REN
Remote Enable
18
-
23
GND
Ground
24
SGND
Signal Ground
Table: Device address
S1 S2 S3 S4 S5 Address S1 S2 S3 S4 S5 Address
Off
Off
Off
Off
Off
0
Off
Off
Off
Off
On
16
On
Off
Off
Off
Off
1
On
Off
Off
Off
On
17
Off
On
Off
Off
Off
2
Off
On
Off
Off
On
18
On
On
Off
Off
Off
3
On
On
Off
Off
On
19
Off
Off
On
Off
Off
4
Off
Off
On
Off
On
20
On
Off
On
Off
Off
5
On
Off
On
Off
On
21
Off
On
On
Off
Off
6
Off
On
On
Off
On
22
On
On
On
Off
Off
7
On
On
On
Off
On
23
Off
Off
Off
On
Off
8
Off
Off
Off
On
On
24
On
Off
Off
On
Off
9
On
Off
Off
On
On
25
Off
On
Off
On
Off
10
Off
On
Off
On
On
26
On
On
Off
On
Off
11
On
On
Off
On
On
27
Off
Off
On
On
Off
12
Off
Off
On
On
On
28
On
Off
On
On
Off
13
On
Off
On
On
On
29
Off
On
On
On
Off
14
Off
On
On
On
On
30
On
On
On
On
Off
15
On
On
On
On
On
31
The device address is read in only when the unit is switched on. Changing the DIP switches while the unit is active will
not change the device address!
Table: Device equipment (according to IEEE-488.1)