digitel Record Reference

Table of contents

The digitel record type supports ion pump controllers. It handles pressure readback, voltage, current, operating mode control, up to four setpoints, bakeout control, cooldown, pump identification, and alarm checking. The record communicates with hardware through the devDigitelPump device support driver using ASYN.

Device support types (DTYP): devDigitel (MPC), devDigitelD500 (Digitel 500), devDigitelD1500 (Digitel 1500), devDigitelQPC (QPC).

Device Identity

Field Type Description Access
INP INLINK Device specification (ASYN port, address) Config
TYPE MENU Controller type Config
MODL STRING(13) Device model number (MPC/QPC only) Read-only
VERS STRING(10) Device firmware version (MPC/QPC only) Read-only

Controller Type Menu (TYPE)

Value String Device
0 MPC MPC, MPC-II, LPC
1 D500 Digitel 500
2 D1500 Digitel 1500
3 QPC QPC, QPCe, SPCe

Pressure and Electrical Readback

Field Type Description Access
VAL DOUBLE Pressure (linear) Read-only
LVAL DOUBLE Pressure (log10 form) Read-only
CRNT DOUBLE Current Read-only
VOLT DOUBLE Voltage Read-only
TONL ULONG Time online Read-only
ACCW DOUBLE Accumulated power Read-only
ACCI DOUBLE Accumulated current Read-only

Operating Controls

Field Type Description Access Menu Values
DSPL MENU Display mode Read/Write VOLTS, CURR, PRES
KLCK MENU Keyboard lock Read/Write Unlocked, Locked
MODS MENU Mode set Read/Write STBY, OPER
MODR MENU Mode readback Read-only STBY, OPER, CONN, COOL, PERR, LOCK
BAKS MENU Bake set Read/Write Disabled, Enabled
BAKR MENU Bake readback Read-only Disabled, Enabled
BKIN MENU Bake installed Read-only Absent, Installed
COOL DOUBLE Cooldown time Read-only  
CMOR MENU Cooldown mode Read-only Off, On

Mode Readback Values (MODR)

Value String Meaning
0 STBY Standby
1 OPER Operating
2 CONN Connecting
3 COOL Cooldown
4 PERR Pump Error
5 LOCK Locked

Pump Type

Field Type Description Access
PTYP MENU Pump type/size Read-only

Pump Type Menu (PTYP)

Value String
0 30 Liter/sec
1 60 Liter/sec
2 120 Liter/sec
3 220 Liter/sec
4 400 Liter/sec
5 700 Liter/sec
6 1200 Liter/sec

Setpoint 1

Field Type Description Access
SET1 MENU Setpoint 1 status Read-only (Off/On)
SP1S DOUBLE SP1 setpoint value Read/Write
SP1R DOUBLE SP1 readback Read-only
S1HS DOUBLE SP1 hysteresis set Read/Write
S1HR DOUBLE SP1 hysteresis readback Read-only
S1MS MENU SP1 mode Read/Write (Pressure/Current)
S1MR MENU SP1 mode readback Read-only (Pressure/Current)
S1VS MENU SP1 HV interlock Read/Write (Off/On)
S1VR MENU SP1 HV interlock readback Read-only (Off/On)

Setpoint 2

Field Type Description Access
SET2 MENU Setpoint 2 status Read-only (Off/On)
SP2S DOUBLE SP2 setpoint value Read/Write
SP2R DOUBLE SP2 readback Read-only
S2HS DOUBLE SP2 hysteresis set Read/Write
S2HR DOUBLE SP2 hysteresis readback Read-only
S2MS MENU SP2 mode Read/Write (Pressure/Current)
S2MR MENU SP2 mode readback Read-only (Pressure/Current)
S2VS MENU SP2 HV interlock Read/Write (Off/On)
S2VR MENU SP2 HV interlock readback Read-only (Off/On)

Setpoint 3

Field Type Description Access
SET3 MENU Setpoint 3 status Read-only (Off/On)
SP3S DOUBLE SP3 setpoint value Read/Write
SP3R DOUBLE SP3 readback Read-only
S3HS DOUBLE SP3 hysteresis set Read/Write
S3HR DOUBLE SP3 hysteresis readback Read-only
S3MS MENU SP3 mode Read/Write (Pressure/Current)
S3MR MENU SP3 mode readback Read-only (Pressure/Current)
S3VS MENU SP3 HV interlock Read/Write (Off/On)
S3VR MENU SP3 HV interlock readback Read-only (Off/On)

Setpoint 3 Bake Time

Field Type Description Access
S3BS MENU Bake time mode set Read/Write (Real Time / Heat On Time)
S3BR MENU Bake time mode readback Read-only (Real Time / Heat On Time)
S3TS DOUBLE Bake time set Read/Write
S3TR DOUBLE Bake time readback Read-only

Setpoint 4

Setpoint 4 was added for the QPC device.

Field Type Description Access
SET4 MENU Setpoint 4 status Read-only (Off/On)
SP4S DOUBLE SP4 setpoint value Read/Write
SP4R DOUBLE SP4 readback Read-only
S4HS DOUBLE SP4 hysteresis set Read/Write
S4HR DOUBLE SP4 hysteresis readback Read-only
S4MS MENU SP4 mode Read/Write (Pressure/Current)
S4MR MENU SP4 mode readback Read-only (Pressure/Current)
S4VS MENU SP4 HV interlock Read/Write (Off/On)
S4VR MENU SP4 HV interlock readback Read-only (Off/On)

Alarm Fields

Standard pressure alarm fields. The record checks the VAL field against these limits.

Field Type Description Default
HIHI DOUBLE Pressure hihi alarm limit 1e-06
HIGH DOUBLE Pressure high alarm limit 1e-07
LOW DOUBLE Pressure low alarm limit 2e-12
LOLO DOUBLE Pressure lolo alarm limit 1e-12
HHSV MENU Hihi alarm severity NO_ALARM
HSV MENU High alarm severity NO_ALARM
LSV MENU Low alarm severity NO_ALARM
LLSV MENU Lolo alarm severity NO_ALARM
HYST DOUBLE Alarm deadband 0
LALM DOUBLE Last value alarmed (internal)

Display Range Fields

These fields set the display range for GUI screens.

Field Type Description Default
HOPR FLOAT Pressure display high 0.0001
LOPR FLOAT Pressure display low 1e-11
HCTR FLOAT Current display high 0.5
LCTR FLOAT Current display low 1e-09
HVTR FLOAT Voltage display high 7000
LVTR FLOAT Voltage display low 0
HLPR FLOAT Log pressure display high -4
LLPR FLOAT Log pressure display low -11

Simulation Fields

Field Type Description
SIML INLINK Sim mode location
SIMM MENU Sim mode value (Yes/No)
SLMO INLINK Sim location for mode
SVMO MENU Sim value for mode
SLS1 INLINK Sim location for SP1
SVS1 MENU Sim value for SP1
SLS2 INLINK Sim location for SP2
SVS2 MENU Sim value for SP2
SLCR INLINK Sim location for current
SVCR DOUBLE Sim value for current

Internal Fields

These fields are used internally by the record and device support for change detection and initialization. They should not be modified directly.

Field Type Description
FLGS ULONG Modification flags (bitmask for pending writes)
SPFG ULONG Setpoint modification flags
CYCL LONG Cycle count
ERR SHORT Error count
IVAL, ILVA DOUBLE Init shadow for pressure
IMOD MENU Init shadow for mode
IBAK MENU Init shadow for bake
ICOL DOUBLE Init shadow for cooldown
ISP1–ISP4 MENU Init shadow for setpoint status
IS1–IS4 DOUBLE Init shadow for setpoint values
IH1–IH4 DOUBLE Init shadow for hysteresis
IM1–IM4 MENU Init shadow for setpoint modes
II1–II4 MENU Init shadow for HV interlock
IB3 MENU Init shadow for SP3 bake time mode
IT3 DOUBLE Init shadow for SP3 bake time
ITON ULONG Init shadow for time online
ICRN DOUBLE Init shadow for current
IVOL DOUBLE Init shadow for voltage
IACW DOUBLE Init shadow for accumulated power
IACI DOUBLE Init shadow for accumulated current
IPTY MENU Init shadow for pump type
IBKN MENU Init shadow for bake installed
IERR SHORT Init shadow for error count

Debug Variable

The recDigitelDebug variable can be set from the iocsh to enable debug output:

var recDigitelDebug 1