Digital I/O Connections; Computer Connections; Gpib Interface - Agilent Technologies 66111A User Manual

Digital I/O Connections

As shown in Table 3-3 and Figure 3-11, the FLT/INH connector can also be configured as a digital I/O
port. Information on programming the digital I/O port is found in chapter 5 and under
[SOURce:]DIGital:DATA and [SOURce:]DIGital:FUNCtion commands in chapter 8. The electrical
characteristics of the digital connector are described in appendix A.
PIN
1
2
3
4
NOTE: Connectors
are removable
INH FLT
. . . .
+ - +

Computer Connections

The dc source can be controlled through an GPIB interface. Agilent 66111A and 66311B/D units can
also be controlled through an RS-232 interface.

GPIB Interface

Follow the GPIB card manufacturer's directions for card installation and software driver setup.
Each dc source has its own GPIB bus address, which can be set using the front panel
described in chapter 5. GPIB address data is stored in non-volatile memory. The dc source is shipped
with its GPIB address set to 5.
Table 3-3. FLT/INH DIGital I/O Connector
FAULT/INHIBIT
FLT Output
FLT Common
INH Input
INH Common
+16.5V Max.
Coil Current
0.25A Max.
Relay Driver
Ports 0, 1, 2
(contains internal
clamp diodes for
inductive flyback)
4 3 2 1
A) Relay Circuits
11
Figure 3- . Digital I/O Examples
DIGITAL I/O
Output 0
Output 1
Input/Output 2
Common
Digital Output
Ports 0, 1, 2
TTL, AS, CMOS, HC
Digital Input
Port 2
B) Digital Interface Circuits
Address
Installation - 3
key as
43