4- 54 Keysight E5260/E5270 Programming Guide, Edition 4
Command Reference
Command Reference
ERC
The ERC command changes the output status of the digital I/O port. This command
does not change the status of the trigger ports and the input ports set by the ERM
command.
The *RST command or the device clear sets the digital I/O port (total 16 paths) to
the output port, and sets the port output level to TTL high.
Syntax ERC mode,
value
[,
rule]
Parameters mode : Control mode. Integer expression. Set mode to 2.
2: Controls the digital I/O port.
If you set 1 that is effective for the Keysight 4142B, an error occurs.
value : Decimal value of the output status bit pattern. Integer expression. 0 to
65535. The bit pattern must comply with the following rule:
Bit value 0: TTL high level (approx. 2.4 V)
Bit value 1: TTL low level (approx. 0.8 V)
rule : Place holder to keep the same syntax as the ERC command of the
Keysight 4142B. Input value is ignored.
Example
Statements
If you want to set TTL low level for the output ports of the digital I/O port bit 0 to 7,
enter the following command.
OUTPUT @E5270;"ERC 2,255"
where the decimal value 255 means binary bit pattern 0000000011111111. This
command does not change the status of the trigger ports and the input ports.
See Also “ERM” and “ERS?”
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