Rel? Relay Query - Colby Instruments PDL-100A Operating And Programming Manual

Chapter 6
REL? RELAY
The REL? query asks for the status of all relays, 16 (far left)
through 1 (far right).
Command
Syntax REL?
Example REL?
Returns <ASCII text><NL>
0001000000101011, X.YYYY ns
X.YYYY ns = total delay
HP : OUTPUT 705;"REL?"<NL>
Programming
Example
NI:
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0 = Relay OFF
1 = Relay ON
ENTER 705;REL$
PRINT (REL$)
DIM QUERY_RESPONSE As Variant
CWGPIB.Write "REL?"
QUERY_RESPONSE = CWGPIB.Read(250)
MsgBox ("Relay status is:" & QUERY_RESPONSE)
System Commands
QUERY
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