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Add total flow and PID-ish control

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This commit is contained in:
Douglas Clowes
2014-02-28 11:16:36 +11:00
parent c0f4805a6c
commit 05d25257b3
1 changed files with 104 additions and 4 deletions
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108
site_ansto/instrument/config/environment/hiden_xcs.sct
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@ -2,7 +2,7 @@
# Simple driver generator for the Hiden Isochema XCS vapour delivery system
# vim: ts=8 sts=2 sw=2 expandtab autoindent smartindent nocindent
#
driver hiden_xcs_gen = {
driver hiden_xcs = {
# driver_property douglas = clowes
usecreatenode = false
vendor = hiden; device = xcs; protocol = std;
@ -19,6 +19,25 @@ driver hiden_xcs_gen = {
type = float
priv = user
var temperature
var flow = {
driveable = flow
readable = 1
fetch_function = fetch_flow
read_function = read_flow
read_command = 'flow1 flow2'
write_function = no_op
lowerlimit = 0
upperlimit = 500
tolerance = 1
pid_function = pid_flow
property pid_error = 0
property pid_deriv = 0
property pid_integ = 0
property pid_pvalue = 0.05
property pid_ivalue = 0.01
property pid_dvalue = 0.0
property pid_imax = 1
}
var flow1
var flow2
var flow3
@ -28,11 +47,20 @@ driver hiden_xcs_gen = {
readable = 1
read_command = '?ALL DATA'
read_function = read_all_data
write_function = no_op
checkrange_function = chkrange_function
value = 50
lowerlimit = 10
upperlimit = 90
tolerance = 5
tolerance = 1
pid_function = pid_humidity
property pid_error = 0
property pid_deriv = 0
property pid_integ = 0
property pid_pvalue = 0.05
property pid_ivalue = 0.005
property pid_dvalue = 0.0
property pid_imax = 1
}
}
#
@ -65,7 +93,7 @@ driver hiden_xcs_gen = {
writeable = 1;
read_function = read_digital;
write_Function = write_digital;
var dout2 = {
var enabled = {
read_command = '?DOUT,2';
write_command = '!DOUT,2,';
allowed = '0,1';
@ -149,6 +177,70 @@ driver hiden_xcs_gen = {
@ } else {
@ sct geterror "Syntax error for read_all_data in: '${data}'"
@ }
@ if { [hpropexists [sct] target] } {
#@ sct pid_error [expr [sct target] - ${data}]
#@ set p_value [expr [sct pid_pvalue] * [sct pid_error]]
#@ set d_value [expr [sct pid_dvalue] * (${data} - [sct oldval])]
#@ sct pid_deriv [sct pid_error]
#@ sct pid_integ [expr [sct pid_integ] + [sct pid_error]]
#@ if { [sct pid_integ] > [sct pid_imax] } {
#@ sct pid_integ [sct pid_imax]
#@ }
#@ if { [sct pid_integ] < -[sct pid_imax] } {
#@ sct pid_integ -[sct pid_imax]
#@ }
#@ set i_value [expr [sct pid_ivalue] * [sct pid_integ]]
#@ set pid [expr ${p_value} + ${i_value} + ${d_value}]
#@ sct pid_output ${pid}
@ set pid [pid_humidity ${tc_root} [sct target] ${data}]
@ set path [pathname [sct]]
@ foreach node [list analog/sp1 analog/sp2] {
@ set pid [expr -${pid}]
@ if { [hpropexists ${path}/${node} target] } {
@ hset ${path}/${node} [expr [hgetpropval ${path}/${node} target] + ${pid}]
@ } else {
@ hset ${path}/${node} [expr [hval ${path}/${node}] + ${pid}]
@ }
@ }
@ }
}
code fetch_function fetch_flow = {
@ set data 0.0
@ set targets 0.0
@ set path [pathname [sct]]
@ foreach node [list flow1 flow2] {
@ set data [expr ${data} + [hval ${path}/${node}]]
@ }
@ sct result ${data}
@ foreach node [list analog/sp1 analog/sp2] {
@ set targets [expr ${targets} + [hval ${path}/${node}]]
@ }
@ sct targets ${targets}
@ if { [hpropexists [sct] target] } {
#@ sct pid_error [expr [sct target] - [sct result]]
#@ set p_value [expr [sct pid_pvalue] * [sct pid_error]]
#@ set d_value [expr [sct pid_dvalue] * ([sct result] - [sct oldval])]
#@ sct pid_deriv [sct pid_error]
#@ sct pid_integ [expr [sct pid_integ] + [sct pid_error]]
#@ if { [sct pid_integ] > [sct pid_imax] } {
#@ sct pid_integ [sct pid_imax]
#@ }
#@ if { [sct pid_integ] < -[sct pid_imax] } {
#@ sct pid_integ -[sct pid_imax]
#@ }
#@ set i_value [expr [sct pid_ivalue] * [sct pid_integ]]
#@ set pid [expr ${p_value} + ${i_value} + ${d_value}]
#@ sct pid_output ${pid}
@ set pid [pid_flow ${tc_root} [sct target] ${data}]
@ foreach node [list analog/sp1 analog/sp2] {
@ if { [hpropexists ${path}/${node} target] } {
@ hset ${path}/${node} [expr [hgetpropval ${path}/${node} target] + ${pid}]
@ } else {
@ hset ${path}/${node} [expr [hval ${path}/${node}] + ${pid}]
@ }
@ }
@ }
@ return ${nextState}
}
code write_function write_digital = {
}
@ -163,9 +255,17 @@ driver hiden_xcs_gen = {
@ } else {
@ set span 500.0
@ }
@ set par [expr int(${base} + (4095.0 * ${par} / ${SPAN}))]
@ set par [expr int(${base} + (4095.0 * ${par} / ${span}))]
@ set cmd "${cmd_str}${par}"
}
code write_function no_op = {
@ if { [hpropexists [sct] driving] } {
@ if { [hpropexists [sct] writestatus] && [sct writestatus] == "start" } {
@ sct driving 1
@ }
@ }
@ return ${nextState}
}
#
# This code is after database creation
#