Description

For GPIB, VISA-GPIB, VISA-VXI, and VISA-GPIB-VXI objects, you can configure EOSMode to be none, read, write, or read&write.

If EOSMode is none, the End-Of-String (EOS) character is ignored. If EOSMode is read, the EOS character is used to terminate a read operation. If EOSMode is write, the EOS character is appended to the ASCII command being written whenever \n is encountered. When the EOS character is written to the instrument, the End Or Identify (EOI) line is asserted. If EOSMode is read&write, the EOS character is used in both read and write operations.

The EOS character is specified by the EOSCharCode property. For GPIB objects, the CompareBits property specifies the number of bits that must match the EOS character to complete a read operation, or to assert the EOI line.

Characteristics

Values

Examples

Suppose you input a nominal voltage signal of 2.0 volts into a function generator, and read back the voltage value using fscanf.

g = gpib('ni',0,1); 
fopen(g) 
fprintf(g,'Volt?') 
out = fscanf(g) 
out = 
+2.00000E+00

The EOSMode and EOSCharCode properties are configured to terminate the read operation when an E character is encountered.

g.EOSMode = 'read'
g.EOSCharCode = 'E' 
fprintf(g,'Volt?')
out = fscanf(g)
out = 
+2.00000

See Also