DH Instruments PPCK PLUS, Operation And Maintenance Manual

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PPCK+™ Operation and Maintenance Manual
Page 113
©2001 DH Instruments, Inc .
∗
OPC
Purpose Sets the operation complete bit when all operations have completed.
Command
Query
“
∗
OPC”
“
∗
OPC?”
Remarks This Command enables the PPCK+ to set the OPC bit in the Standard Event Status
Register when it has completed all pending functions.
The Query replies with a “1” when all functions are complete.
Example
(enhanced) Sent:
Query reply:
“
∗
OPC”
“1”
∗
OPT
Purpose
Reads the list of installed PPCK+ options.
Query
“
∗
OPT?”
Remarks This Query returns any registered option(s) installed in the PPCK+. Each option is
separated by a comma. Possible options:
“IEEE-488:0” The IEEE-488 option is installed.
“ANALOG:n” The analog option is installed. ‘n’ is the revision on the analog option
hardware from ‘A’ to ‘Z’ or ‘-’ if original revision.
Example
(enhanced) Sent:
Reply:
“
∗
OPT?”
“IEEE-488:0, ANALOG:-”
∗
RST
Purpose
Resets the PPCK+ control settings to factory settings.
Command
“
∗
RST””
Remarks This Command sets the PPCK+ settings to factory settings. This equivalent to a
fro n t p a n e l e x e c u t e d R E S E T / S E T . T h i s d o e s n o t a f f e c t t h e
communications settings.
Example
(enhanced) Sent:
Reply:
“
∗
RST”
“
∗
RST” (no reply if IEEE-488)
See Also 3.4.4.5, “RESET”
∗
SRE
Purpose Read or set the Service Request Enable Register.
Command
Query
“
∗
SRE n ”
“
∗
SRE?”
Default
“
∗
SRE 0”
Arguments n: ’0 to 255’ This is the decimal representation of the bit(s) to enable.
To allow the MAV and ESB bits to assert the SRQ line, the
argument would be 32+16 = 48. Bit 6 (64) is reserved and cannot
be set.
Remarks The Service Request Enable Register determines which bits of the Status Byte can
set the MSS bit of the Status Byte and request service by asserting the SRQ line of
the IEEE-488 interface.
Example
(enhanced) Sent:
Query reply:
“
∗
SRE=48” (enables the MAV and ESB bits)
“48” (no reply if IEEE-488)
Errors ERR# 6: n is not valid.