Measurement Computing Digital488 - Manual (Page 57)

Section 3 Command Descriptions
3.27
Below is a summary of the Status (U0) information.
C# Configuration
C0 All ports are inputs
C1 Port 1 is an output, ports 2 thru 5 are inputs
C2 Ports 1 and 2 are outputs, ports 3 thru 5 are inputs
C3 Ports 1 thru 3 are outputs, ports 4 and 5 are inputs
C4 Ports 1 thru 4 are outputs, port 5 is an input
C5 All ports are outputs
E# Error Message
0 No error
1 Unrecognized command (ex. W3)
2 Illegal command option (ex. F8)
3 Conflict (attempt to output data to an input port)
4 ROM error
5 RAM error
F# Data Format
F0 Hexadecimal
F1 ASCII
F2 Binary
F3 Decimal
F4
High Speed Binary
I### Invert Control Lines
I0 All control and data lines are active high
I1 Inhibit output is active low
I2 Trigger output is active low
I4 Data Strobe output is active low
I8 Clear output is active low
I16
Data is active low
I32 EDR input is fallling edge sensitive
I64 Service input is falling edge sensitive
Note: the status indication reflects the sum of all received Invert commands.