This command is processed by the Tcl slow controls server when it processes the control configuration file. It is used to create, configure and query the configuration of slow controls modules.
The create subcommand creates a new module
assigned the name by which it can be
referred to by remote control panels, and the remainder of
the cofiguration file. The module will be of type
type. See MODULE TYPES below for
information about the module types supported.
The config subcommand configures the
module name, setting the configuration
options provided on the command line to the specified values.
See MODULE TYPES below for information about the configuration
options accepted by each module.
The cget subcommand returns the configuration of
the nameed module. The configuration is
returned as a list of pairs where each pair consists of the
configuration parameter name and value.
This section describes the module types that are supported currently and the device specific configuration options and settable/readable parameters each supports. Device support includes both the driver and a control panel for the device.
This module is actually a general purpose logic module. The only support for it at this time is as a multi-channel gate and delay generator.
The CAEN V812 is a VME 16 channel constant fraction disriminator while the V895 is a software compatible leading edge discriminator.
-baseThe value of this parameter is the base address of the module as set by the on-board rotary switches.
-fileThe value of this parameter is the path to a configuration file whose contents are used to initialize the state of the device. Note that these modules are write-only so writing their initial state is the only way to put them into a known state.
The contents of this file are described in CAENV812Config(5)
This slow control module supports remote execution of arbitrary VM-USB lists. Full documentation of this facility will be produced in a later version of this document. The idea is, however that the module, which has no configuration options, has exactly one parameter, list
list is a set only parameter. It's value is a Tcl list. The first element of thel ist specifies the maximum input buffer size required by the list. The second value of the list is a Tcl list containing the VM-USB stack. The Set operation executes the stack and returns the text Ok - followed by a Tcl list whose elements are the bytes of data put in the read buffer by the stack.
This is a CAEN bias supply controller. It makes use of the slow controls monitor facility to maintain an up-to-date module state without interrupting data acquisition.
The module supports only the -base
option which describes to the software the base address
of the bias supply as encoded in the module rotary
switches.
The following parameters can be Set:
Sets the requested voltage on channel
i in floating point
volts.
Sets the current limit on channel i
in floating point micro-amps.
Turns channel on or off. The value of this parameter is a legal boolean value.
Sets the number of seconds (floating point)
for which channel i
is allowed to be out of specification before
it trips off.
Sets the maximum voltage allowed for
channel i in floating
point volts. If a voltage setting is made
that is larger than this, the actual requested
voltage will be limited to this value.
Sets the ramp down rate of channel
i in
floating point volts per second.
Sets the ramp up rate of channel
i in floating point
volts per second.
Sets the power down mode of channel
i. The value of this
parameter can be either kill
which abruptly drops the voltage to zero,
or ramp which ramps the
channels down at the ramp down rate.
Note that if you want to monitor key components of this device periodically you should use the Mon command as that will retrieve data without temporarily halting data taking.
The following parameters can be retrieved via Get:
Returns the global maximum voltage for the module.
Returns the global maximum current for the module.
Returns a list of the requested voltages from all channels.
Returns a list consisting of the requested maximum currents from all channels.
Returns a list that contains the requested channel states (on or off for each channel).
Returns a list contaning the actual voltage reading from each channel.
Returns a list containing the actual current readings from each channel.
Returns a list of status values for each channel. See sections 3.2.2.6 for a bit b bit description of the valuesthat can be set in each list element.
Returns the trip times for each channel.
Returns the software maximum voltage for each channel.
Returns a list of ramp down rates for each channel.
Returns a list of the ramp up rates for each channel.
Returns a list of the power down modes for each channel.
Returns a list of the channel polarity values. Each channel polarity is represented by a + or a -
Returns a list of the temperaturs for each channel.
Bias supplies must normally be monitored periodically so that operators can be informed of trip and alarm conditions. The VM-USB framework provides for each slow control device to contribut to a list that is triggered periodically via the action register. This allows this monitoring to be done without pausing data taking.
The V5633 driver uses this capability and the mon command should be used to retrieve the most recent values of the monitored variables.
The mon protocol command will return the the string OK followed by a Tcl list of lists. The first list will be the channel status values. The second list will be the channel actual voltages. The third list will be the actual channel currents. The fourth and last list will be the channel temperatures.