README.txt 16.9 KB
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********************************************************************************
Phytron I1AM01 Stepper Motor Controller Asyn Driver Documentation

Authors: Tom Slejko, Bor Marolt, Cosylab d.d.
		tom.slejko@cosylab.com
		bor.marolt@cosylab.com

********************************************************************************
Table of contents:
- Controller and axis configuration
    - Example Application
    - New Applicaion
- Database
    - Supported I1AM01 Features
         - Initialization records
         - Status
         - Homing
         - Reset
         - I1AM01 parameters
    - Supported MCM01 Features
    - Motor record
    - List of remaining I1AM01 parameters handled by the motor record, 
      internally by controller, or not applicable
- GUI


Controller and axis configuration
=================================
Example application:
--------------------
Motor record includes an example Phytron application. Before using it do:

cd $(MOTOR_ROOT)/iocBoot/iocWithAsyn/

where $(MOTOR_ROOT) is the location of the motor record. Open st.cmd.phytron and
modify controller's IP address. If using serial port instead of ethernet, read 
"New application" section, on how to configure the serial port. Remove or add 
calls to phytronCreateAxis according to the number of axes that are to be used 
(read "New application" section on how to use phytronCreateAxis). 
Once st.cmd is configured, run:

../../bin/linux-x86_64/WithAsyn st.cmd.phytron

New application:
----------------
This section describes how to properly configure epics application in order to
use phytronAxisMotor driver.

The following dbd files and libraries must be added to the $(APP)/src/Makefile:
test_DBD += asyn.dbd
test_DBD += motorSupport.dbd
test_DBD += drvAsynIPPort.dbd
test_DBD += phytron.dbd

test_LIBS += asyn
test_LIBS += motor
test_LIBS += phytronAxisMotor

An example motor.substitutions.phytron and st.cmd.phytron files are located in 
the $(MOTOR_RECORD)/iocBoot/iocWithAsyn/ directory.

********************************************************************************
WARNING: For the controller to work properly all three database files (
Phytron_I1AM01.db, Phytron_MCM01.db and Phytron_motor.db) must be used.
********************************************************************************

Start up script must perform the following:
Before configuring the controller the user must create an asyn port by running 
drvAsynIPPortConfigure or drvAsynSerialPortConfigure in order to create a 
communication interface to Phytron's MCM Unit which controlls the I1AM01 
modules.

If serial port is used for communication with the controller, baud rate, number
of data bits, parity, number of stop bits and End Of Line character must be set,
e.g.:

drvAsynSerialPortConfigure ("testRemote","/dev/ttyUSB0")
asynOctetSetInputEos("testRemote",0,"\3")
asynSetOption ("testRemote", -1, "baud", "115200")
asynSetOption ("testRemote", -1, "bits", "8")
asynSetOption ("testRemote", -1, "parity", "none")
asynSetOption ("testRemote", -1, "stop", "1")

If ethernet is used, the IP and port must be set, e.g.:
drvAsynIPPortConfigure("testRemote","10.5.1.181:22222",0,0,1)

Phytron (MCM) controller port is configured (and connected to previously created
asyn port) by running the following iocsh function:

phytronCreateController(const char *phytronPortName, const char *asynPortName,
                int movingPollPeriod, int idlePollPeriod, double timeout)
- phytronPortName: Name of the particular MCM unit.
- asynPortName: Name of the previously configured asyn port - interface to MCM
- movingPollPeriod: The time between polls when any axis is moving in ms
- idlePolPeriod: The time between polls when no axis is moving in ms
- Timeout: Milliseconds before timeout for I/O requests

where poll reads the basic axis status, e.g. position of the motor and of the 
encoder, checks if axis is in movement, checks if motor is at the limit 
switch, ...

Once the phytron controller is configured, user can initialize axes by running

phytronCreateAxis(const char* phytronPortName, int module, int axis)
- phytronPortName: Previously defined name of the MCM unit
- module: index of the I1AM01 module connected to the MCM
- axis: index of the axis on the I1AM01 module

Module index and axis index compose the axis asyn ADDR (ADDR macro) used in the
motor.substitutions file. 

PhytronCreateAxis must be called for each axis intended to be used.

********************************************************************************
WARNING: For every axis, the user must specify it's address (ADDR macro) in the 
motor.substitutions file for Phytron_motor.db and PhytronI1AM01.db files.
The address is composed of the I1AM01 module index and the axis index. If, for 
example, the startup script configures the following axis:

drvAsynIPPortConfigure("testRemote","10.5.1.181:22222",0,0,1)
phytronCreateController ("phyMotionPort", "testRemote", 100, 100, 1000)
phytronCreateAxis("phyMotionPort", 2, 1)

It's asyn address that must be specified in the substitutions file is 21,

PORT macro in the substitution file must match the phytronPortName, which is in
the example above "phyMotionPort"
********************************************************************************

Example st.cmd:
---------------
#!../../bin/linux-x86_64/test

## You may have to change test to something else
## everywhere it appears in this file

< envPaths

## Register all support components
dbLoadDatabase("../../dbd/test.dbd",0,0)
test_registerRecordDeviceDriver(pdbbase) 

drvAsynIPPortConfigure("testRemote","10.5.1.181:22222",0,0,1)

phytronCreateController ("phyMotionPort", "testRemote", 100, 100, 1000)

#phytronCreateAxis(phytronPort, module, axis)
phytronCreateAxis("phyMotionPort", 1, 1)
phytronCreateAxis("phyMotionPort", 2, 1)


cd $(MOTOR)/iocBoot/iocWithAsyn/
dbLoadTemplate "motor.substitutions.phytron"

iocInit()

Database:
=========
All three database files (Phytron_I1AM01.db, Phytron_MCM01.db, Phytron_motor.db)
in $(MOTOR_ROOT)/motorApp/Db are expanded by motor.substitutions.phytron file in
$(MOTOR_ROOT)/iocBoot/iocWithAsyn

********************************************************************************
WARNING: For the controller to work properly all three database files (
Phytron_I1AM01.db, Phytron_MCM01.db and Phytron_motor.db) must be used.
********************************************************************************

===============================================
I1AM01 Controller Features - Phytron_I1AM01.db:
===============================================
Initialization:
---------------
Database contains 2 initialization records $(P)$(M)-INIT-AXIS-1/2 which are used
to initalize output (_SET) records. Initialization values are defined in the 
motor.substitutions file.

Status:
-------
Database contains several status records. Ai record $(P)$(M)-STATUS_ reads the 
status value from the I1AM01 module, 2 mbbiDirect records ($(P)$(M)-STATUS-1/2) 
are provided to set the status bits - 23 bi records are provided to parse these
status bits. An additional calc record is provided ($(P)$(M)-AXIS-ERR) which
sets it's value to 1 if any of the error bits are set (if only notification 
bits are set, e.g. axis-initialized, the value of $(P)$(M)-AXIS-ERR is 0).

Homing:
-------
RECORDS mbbo/mbbi: $(P)$(M)-HOMING_SET/_GET are used to set and readback the 
type of homing to be used. Homing is executed with the use of motor record's 
HOMF, HOMR fields. The following options are available for $(P)$(M)-HOMING_SET, 
please keep in mind that offsets defined by I1AM01 parameters P11 and P12 (see 
phylogic-en.pdf and see below for records corresponding to P11 and P12) affect
the final position after the homing procedure:
<- recordValue (Homing description); Phytron commands for HOMF and HOMR>

- Limit (Home on limit switches); HOMF - m.aR+, HOMR - m.aR-

- Center (Home on center switch); HOMF - m.aR+C, HOMR - m.aR-C
COMMENT: If limit switch is reached, the motor will stop and start moving in the
opposite direction until center switch is reached

- Encoder (Home on encoder zero pulse); HOMF - m.aR+I, HOMR - m.aR-I

- Limit-Encoder (Got to limit switch, than encoder zero pulse); 
        HOMF - m.aR+^I, HOMR - m.aR-^I

- Center-Encoder (Go to the center switch than to encoder zero pulse)
        HOMF - m.a.R+C^I, HOMR - m.aR-C^I
COMMENT: If limit switch is reached before center switch, the motor will stop 
and start moving in the opposite direction until center switch is reached

- Reference-Center (Driving on a reference signal to center)
        HOMF - m.aRC+, HOMR - m.aRC-
COMMEN: If limit switch is reached, controller goes to axis error state

- Ref-Center-Encoder (Driving on a reference signal to center and then to 
encoder zero pulse)
        HOMF - m.aRC+^I, HOMR - m.aRC-^I

Reset:
------
Two records are provided. Record $(P)$(M)-RESET executs Phytron command: m.aC,
where m is controller index and a is the axis index.

$(P)$(M)-RESET-STATUS resets the axis status by executing the Phytron command: 
SECm.a, where m is controller index and a is the axis index.

If user resets the MCM unit, $(P)$(M)-REINIT_ record is triggered. This record
process the initialization records $(P)$(M)-INIT-AXIS-1/2 after a DELAY time
defined by the macro DLY in the substitutions file.


The following I1AM01 parameters are exposed as additional EPICS records:
------------------------------------------------------------------------
Param. index: feature;
Record name(s):
Comment:
-------------------------------------
P01: Type of movement;
RECORDS mbbo/mbbi: $(P)$(M)-MOVE-TYP_SET/_GET; 
COMMENT: Software limits are always monitored  by the motor record, so only 2 
types of movements are possible:
    - Rotational: HW limit/center switches are ignored
    - HW switches are monitored
-------------------------------------
P11: M0P offset for limit switch in direction towards LIMIT-;
RECORDS ao/ai: $(P)$(M)-POS-OFFSET_SET/_GET
-------------------------------------
P12: M0P offset for limit switch in direction towards LIMIT+;
RECORDS ao/ai: $(P)$(M)-NEG-OFFSET_SET/_GET
-------------------------------------
P13: Time lapse during initialization
RECORDS ao/ai: $(P)$(M)-INIT-TIMEOUT_SET/_GET
-------------------------------------
P16: Time lapse after positioning
RECORDS ao/ai: $(P)$(M)-POS-TIMEOUT_SET/_GET
-------------------------------------
P17: Defines when to use boost current 
RECORDS mbbo/mbbi: $(P)$(M)-BOOST_SET/_GET
-------------------------------------
P26: Encoder data transfer rate (ONLY FOR SSI)
RECORDS mbbo/mbbi: $(P)$(M)-ENC-RATE_SET/_GET
-------------------------------------
P27: Limit switch type
RECORDS mbbo/mbbi: $(P)$(M)-SWITCH-TYP_SET/_GET
-------------------------------------
P28: Power stage off/on
RECORDS bo/bi: $(P)$(M)-PWR-STAGE-MODE_SET/_GET
-------------------------------------
P34: Encoder type
RECORDS mbbo/mbbi: $(P)$(M)-ENC-TYP_SET/_GET
-------------------------------------
P35: Encoder resolution - for SSI and EnDat encoders
RECORDS ao/ai: $(P)$(M)-ENC-RES_SET/_GET
-------------------------------------
P36: Encoder function: If 1, Encoder position is continuously compared to the 
motor position
RECORDS: bo/bi: $(P)$(M)-ENC-FUNC_SET/_GET
COMMENT: _SET is processed when $(P)$(M)-ENC-SFI_SET corresponding to parameter 
P37 is processed. If P37 > 0, then P36 is set to 1, else it is 0.
-------------------------------------
P37: If P36 is set to 1, controller will stop the motion when the difference
between motor and encoder position is > P37.
RECORDS: bo/bi: $(P)$(M)-ENC-SFI_SET/_GET
COMMENT: If value is set to > 0, then P36 is set to 1. If P37=0, then P36=0
-------------------------------------
P38: Encoder direction of rotation: Positive/Negative
RECORDS: bo/bi: $(P)$(M)-ENC-DIR_SET/_GET
-------------------------------------
P39: Encoder direction of rotation
RECORDS: bo/bi: $(P)$(M)-ENC-DIR_SET/_GET
-------------------------------------
P40: Stop current in mA. Can be set in 10 mA increments
RECORDS: ao/ai: $(P)$(M)-STOP-CURRENT_SET/_GET
-------------------------------------
P41: Run current in mA. Can be set in 10 mA increments
RECORDS: ao/ai: $(P)$(M)-RUN-CURRENT_SET/_GET
-------------------------------------
P42: Boost current in mA. Can be set in 10 mA increments
RECORDS: ao/ai: $(P)$(M)-BOOST-CURRENT_SET/_GET
-------------------------------------
P43: Current hold time in ms.
RECORDS: ao/ai: $(P)$(M)-CURRENT-DELAY_SET/_GET
-------------------------------------
P49: Power stage temperature
RECORDS: ai: $(P)$(M)-PS-TEMPERATURE
-------------------------------------
P53: Power stage monitoring
RECORDS: bo/bi: $(P)$(M)-PS-MONITOR/_GET
-------------------------------------
P54: Motor temperature
RECORDS: ai: $(P)$(M)-MOTOR-TEMP



============================================
MC01 Controller Features - Phytron_MCM01.db:
============================================
This database file contains records for reading MCM01 status and to reset the 
MCM01 module.

Ai record $(P)-STATUS_ reads the status value from the MCM01 module, a 
mbbiDirect record is provided to set the status bits - 16 bi records are 
provided to parse these bits. An additional calc record is provided 
($(P)-CON-ERR) which sets it's value to 1 if any of the error bits are set (if 
only noticiation bits are set, e.g. terminal-activated, the value of 
$(P)-CON-ERR is 0)

Bo record $(P)-RESET resets the MCM01 controller, every time it is processed. 
$(P)-RESET_ alternates between 0 and 1, so the monitor is posted on every reset
and the axis REINIT_ record can trigger the initialization procedures.

================================
Motor Record - Phytron_motor.db:
================================
This database file is similar to basic_asyn_motor.db, the only difference is, 
that 2 additional fields are defined:
  - field(ERES,"$(ERES)") - encoder resolution
  - field(VMAX,"$(VMAX)") - maximum velocity


===============================================================================
List of remaining I1AM01 parameters handled by the motor record,  internally by 
controller, or not applicable
===============================================================================
P02 (Units of movemnt) - Always set to step - unit conversion is done within the
motor record.

P03 (Conversion factor for the thread) - Always set to 1 - unit conversion is 
done within the motor record.

P04 (Start/stop frequency) - Set by phytronAxis::move, before move is executed.

P07 (Emergency stop ramp) - Set by phytronAxis::stop, before stop is executed.

P08 (Initialization run frequency) - Set by phytronAxis::home, before homing is 
executed.

P09 (Ramp M0P) - Set by phytronAxis::home, before homing is executed.

P10 (Run frequency for leaving the limit switch) - Set by phytronAxis::home, 
before homing is executed

P14 (Run frequency during program operation) - Set by phytronAxis::move, before
move is executed

P15 (Ramp for run frequency) - Set by phytronAxis::move, before move is executed

P18 (Used internally by controller)

P19 (Encoder deviation M0P counter)

P20 (Mechanical 0 counter) - read by phytronAxis::poll to determine motor 
position

P21 (Absolute counter)

P22 (Encoder counter) - read by phytronAxis::poll to determine encoder position

P23 and P24 - Software limit switches - these parameters are ignored, because 
motor record handles software limits

P25 (Compensation for play) - Ignored, because motor records handles backlash 
corrections

P29 (Not used (by controller))

P30 and P31 (For I4XM01 only)

P32 and P33 (Not used (by controller))

P44 (For I4XM01 only)

P46, P47, P48 (Not used (by controller))

P50 and P51 (For I4XM01 only)

P52 (Internally used for trigger position)


GUI:
====
The follwoing CSS BOY GUI screens are located in motorApp/op/opi:

PhytronMain.opi
---------------
Motor record name is usually defined with 2 macros:
record(motor, "$(P)$(M)")

The value of the macro $(IOC) of the PhytronMain.opi screen must match the value
of the macro $(P) which is defined in motor.substitutions.

PhytronMain.opi has 2 action buttons to open screen PhytronI1AM01.opi for motor 
$(IOC):$(M), where the default values for $(M) are "m1" for the left button  
and "m2" for the right button. User must modify the values of macros $(IOC) and
$(M) according to the macro values in motor.subsititutions.

PhytronMain.opi also contains a CONTROLLER STATUS line. The LED displays the 
value of record $(P)-CON-ERR (see section MC01 Controller Features). Action 
button "MORE" opens the screen PhytronMCM01Status.opi, action button "RESET"
resets the MCM01 controller and action button "RESET CONTROLLER" resets 
controller status.

PhytronI1AM01.opi
-----------------
Status line contains a LED which displays the value of the record 
$(P)$(M)-AXIS-ERR, and an action button which displays the PhytronI1AM01.opi
screen. Action buttons "RESET AXIS" and "RESET STATUS" are provided.

The remaining widgets are used to set and read back the values of supported 
I1AM01 parameters (see section I1AM01 Controller Features).

PhytronI1AM01Status.opi
-----------------------
Contains an LED for each of the 23 bi records parsing the $(P)$(M)-STATUS-1/2
mbbiDirect records.

PhytronMCM01Status.opi
----------------------
Contains an LED for each of the 16 bi records parsing the $(P)-STATUS-BITS_ 
mbbiDirect record