RSF Elektronik UFC 430 User manual

USER MANUAL
UFC 430
USB-INTERFACE MODULE
12/2017

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TABLE OF CONTENTS
1. General Information ....................................................................................................................................................03
1.1 Important information ....................................................................................................................................................................................03
1.2 Application .......................................................................................................................................................................................................03
1.3 Items supplied..................................................................................................................................................................................................03
2. Specications............................................................................................................................................................04
2.1 Mechanical Design and Ambient Conditions ...............................................................................................................................................04
2.2 USB Bus ...........................................................................................................................................................................................................04
2.3 Counter Interface (X1, X2, X3) .......................................................................................................................................................................04
2.4 I/O Interface (X4) .............................................................................................................................................................................................04
2.5 Counter Operating Modes...............................................................................................................................................................................04
2.6 Latch Logic.......................................................................................................................................................................................................05
3. Hardware ...................................................................................................................................................................06
3.1 Connecting Elements and "Ready" LED .......................................................................................................................................................06
3.2 Connector Pin Assignments...........................................................................................................................................................................07
4. DescriptionoftheFunctions ........................................................................................................................................08
4.1 Counter Interface.............................................................................................................................................................................................08
4.2 I/O Interface .....................................................................................................................................................................................................10
4.2.1 Delay Timer for external Sync-In....................................................................................................................................................................11
4.2.2 DC Parameters.................................................................................................................................................................................................12
5. InstructionsforInstallation .........................................................................................................................................13
5.1 Installing the Hardware ..................................................................................................................................................................................13
5.2 Installing the Drivers .......................................................................................................................................................................................13
5.3 Installing the enclosed Demonstration Software .......................................................................................................................................13
6. DLLFunctions.............................................................................................................................................................14
6.1 Overview of the DLL functions .......................................................................................................................................................................14
6.1.1 General Functions............................................................................................................................................................................................14
6.1.2 Functions for Counter and Encoder Mode....................................................................................................................................................14
6.1.3 Functions for Error Messages and Status....................................................................................................................................................15
6.1.4 Functions for load and clear Counter............................................................................................................................................................15
6.1.5 Functions for latching and reading out Count Values.................................................................................................................................15
6.1.6 Functions for referencing ...............................................................................................................................................................................16
6.1.7 Functions for external Inputs and Outputs...................................................................................................................................................16
6.1.8 Functions for the Timer ..................................................................................................................................................................................16
6.2 Reference of the DLL Functions.....................................................................................................................................................................17
6.2.1 General Functions............................................................................................................................................................................................17
6.2.2 Functions for Counter and Encoder Mode....................................................................................................................................................19
6.2.3 Functions for Messages and Status..............................................................................................................................................................21
6.2.4 Functions for load and clear Counter............................................................................................................................................................22
6.2.5 Functions for latching and reading out Count Values.................................................................................................................................23
6.2.6 Funcions for referencing.................................................................................................................................................................................25
6.2.7 Functions for external Inputs and Outputs...................................................................................................................................................27
6.2.8 Functions for the Timer ..................................................................................................................................................................................29
List of Figures................................................................................................................................................................................................................30
List of Tables .................................................................................................................................................................................................................30
History............................................................................................................................................................................................................................31
List of the DLL Functions.............................................................................................................................................................................................32

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1. GENERAL INFORMATION
1.1 Important Information
Dangertocomponentsifthesenotesarenotobserved
PleaseobservethesafetyprecautionsaccordingtoDINEN100015
whenhandlingESDcomponents(electrostaticdischarge)
Onlyuseantistaticpackagingmaterial
Formountingobservethattheworkingplaceisproperlygrounded
Donotengageordisengageanyconnectorswhilethepowersupplyisswitchedon
1.2 Application
The UFC 430 module serves to record and evaluate encoder signals.
It can also be used as an event counter.
1.3 Itemssupplied
UFC 430 (interface module)
Wall power supply (option)
CD with operating instructions, demo program and driver software

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2. SPECIFICATIONS
2.1 MechanicalDesignandAmbientConditions
Dimensions of the UFC 430 module: approx. 200 x 100 x 25 mm
Maximum permissible ambient temperature: + 40 °C
3 D-Sub terminal strips, female, 15-pin (HD) for counter Inputs
1 D-Sub terminal strip, male, 15-pin (HD) fot I/O signals
USB connector, type B
Low-voltage socket
2.2 USBBus
USB interface 2.0
The functions of a USB bus are not described in this manual

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2.3 CounterInterface(X1,X2,X3)
 Thedenitionsbelowapplyforeachoftheencoderinputs!
3 RS422 (line driver) or analog Inputs (1 Vpp) for square-wave encoder signals and reference marks;
Input frequency:
Encoders with TTL signals: max. 500 kHz (aslopetime≥0.5µs)
Encoders with analog signals (1Vpp):
• max. 200 kHz at times 20 interpolation
• max. 160 kHz at times 25 interpolation
• max. 200 kHz at times 40 interpolation
• max. 160 kHz at times 50 interpolation
• max. 200 kHz at times 80 interpolation
• max. 160 kHz at times 100 interpolation
• max. 80 kHz at times 200 interpolation
• max. 40 kHz at times 400 interpolation
1 TTL input for encoder interference signal
2 TTL inputs for encoder trigger signals
Encoder power supply: 5.2 V; max. 0.2 A
2.4 I/OInterface(X4)
8 inputs (3–30 V) that can be used for ref. pulse inhibit, counter load signal,
synchrones or asynchrones latch signal or for special assignment
4 outputs (TTL) to cascade several cards or for special assignment
2.5 CounterOperatingModes
3 counter channels, 32 bits each; one load and two latch registers for each channel
To count the square-wave signals of encoders with TTL signals
To count square-wave signals and additional interpolation of encoders with analog signals (1 Vpp)
Event counter
Integrated timer for pulse widths, frequency and speed measurements as well
as cyclic storage of counter values in the latch registers
2.6 LatchLogic
Asynchronous latching of the counter values for each encoder channel
by software, reference mark of the encoder or external hardware signal
Synchronous storage of several counters by software, timer or external signal
Output signal for cascading several modules; can be programmed for software,
timer or external hardware synchronisation
Storing time: 62.5 ns

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3. HARDWARE
3.1 ConnectingElementsand"Ready"LED
Fig. 1: Connecting elements and "Ready" LED
No. Description
1a; 1b; 1c X1; X2; X3 = D-Sub terminal strip, female, 15-pin for counter interface
2 X4 = D-Sub terminal strip, male, 15-pin for I/O interface
3 X5 = USB connector, type B
4 X6 = Low-voltage connector for external power supply
Note!
Table 1: Overview of the connecting elements
No. Description
5 Rdy: Lights up as soon as the UFC430 module is ready for operation
6 Pwr: Lights up as soon as the external power is present
Table 2: Overview of the "Ready" LED
V+
GND
3
4
5
6
1a 1b 1c 2

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3.2 ConnectorPinAssignments
Connector pin assignment X1, X2, X3:
Pin Signal
1 Input A+
2 Input A-
3 Input B+
4 Input B-
5 Input R+
6 Input R-
7 Power supply +5V
8 GND
9 Shield
10 Trigger signal S1
11 Trigger signal S2
12 Power supply +5V sensor
13 GND sensor
14 Interference signal S-
15 not connected
Table 3: Connector pin assignment X1, X2, X3
Connector pin assignment X4:
Pin Signal
1 IN 1
2 IN 2
3 IN 3
4 IN 4
5 IN 5
6 IN 6
7 IN 7
8 IN 8
9 Power supply +5V
10 GND
11 Out 1
12 Out 2
13 Out 3
14 Out 4
15 GND
Table 4: Connector pin assignment X4

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4 DESCRIPTION OF THE FUNCTIONS
4.1 CounterInterface
Fig. 2: Block diagram
The UFC 430 module features three equivalent counter channels (X1, X2, and X3) each with an interpolator,
a counter, two latch registers, one load register, one control and one status register.
Counter operating modes
Three counter operating modes are available:
Event counter with direction input and clear input
Counting of square-wave signals with times 1, times 2 or times 4 evaluation for encoders with TTL signals
Counting of square-wave signals with times 1, times 2 or times 4 evaluation and additional times 20,
25, 50 or times 100 interpolation can be programmed.
Used DLL function:
Name Page Function
UFC_SetInterpolMode 19 Switch between the three operating modes and simultaneously set
the interpolation factor
Table 5: DLL functions, counter operating modes

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Loadregister
For each counter channel a 32-bit load register is available. The counter preset value must be written
to the load register from where it is transferred to the counter by means of a software command or by a hardware event.
Used DLL functions:
Name Page Function
UFC_SetLoadReg 23 Write to load register
UFC_LoadCounter 23 Software commend to transfer the value from the load register to the counter
UFC_SetLoadClearMode 22 Select a hardware source to transfer the contents of the load register to the counter
Table 6: DLL functions, load register
Latchregister
For each counter channel two latch registers are available. Before the count values can be read out,
they must be stored in one of the latch registers. The values can be stored either individually for each counter channel
or simultaneously for several counter channels, either by a software command or by a hardware event.
Used DLL functions:
Name Page Function
UFC_SetLatchMode 23 Select a hardware source to transfer the contents of
the count value to the latch register
UFC_LatchImpuls 24 Generates a pulse that can be applied simultaneously to all
latch registers and to the OUT 4 output (X4, pin 14)
UFC_LatchCounter 24 Software command to transfer a count value into a latch register
Table 7: DLL functions, latch register
Statusregister
The following information can be obtained from the status register:
Counter input signals (tracks A, B and R)
Encoder interference signals (that may be present on encoders with TTL signals)
Encoder amplitude monitoring (only active for encoders with 1 Vpp signals and integrated in the UFC 430 module)
Encoder trigger signals (option for linear encoders)
Monitoring of the encoder chain of steps
Reference status (1st or 2nd reference mark traversed)

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4.2 I/O Interface
The UFC430 module features an external I/O port (X4) with 8 inputs and 4 outputs. All inputs of the port are assigned
special functions. If you do not need these special functions, the inputs are available to your requirements.
The outputs of the port have no special functions (exception: OUT 4) and therefore they are always available.
If OUT 4 is not required, it is also at your dispostion.
The special functions of the external I/O port are listed in the table below:
PIN Signal Specialfunction
1 IN 1 Ref. pulse inhibit for X1
2 IN 2 Asynchronous latch signal for X1
3 IN 3 Ref. pulse inhibit for X2
4 IN 4 Asynchronous latch signal for X2
5 IN 5 Ref. pulse inhibit for X3
6 IN 6 Asynchronous latch signal for X3
7 IN 7 Load signal for X1…X3
8 IN 8 Synchronous latch signal for X1...X3 (SyncIN)
11 OUT 1 Free
12 OUT 2 Free
13 OUT 3 Free
14 OUT 4 Cascading signal to cascade several modules (CascOUT)
Table 8: I/O functions
The following DLL functions are used to set the I/O functions:
Name Page Function
UFC_SetLoadClearMode 22 Select a hardware source to transfer the contents of
the load register to the counter
UFC_SetRefInit 25 Activates ref. pulse inhibit
UFC_SetExtInit 27 Initializing of I/O port
UFC_SetLatchMode 23 Select a hardware source to transfer the contents of
the count value to the latch register
UFC_SetExtOut 28 Sets the outputs
Table 9: DLL functions, external I/O port

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4.2.1DelayTimerforexternalSync-In
Timervalue(8-bit) Timer
0 Timer off
1...255 Timer on
Table 10: Delay-Timer
Fig. 3: Delay timer
t1 < t3 < t2
t3=timervalue*128µs
The delay timer serves to activate a drop-out delay and thus a debouncing of the Sync-In input.
If the timer value is zero, the delay timer is in active and the Sync signal directly follows the input.
If the timer value is "<> 0", the timer is triggered each time the input signal is activated.
If the input signal (t2) is inactive longer than the timer (t3), the Sync signal is deactivated as soon as the timer has run off.
Notes!
The time t3 must be programmed longer than the time for the signal drops (t1).
If the CascOUT output (X4, pin 14) is programmed such that it is triggered in synchronism with SyncIN (X4, pin 8)
(see DLL function "UFC_SetExtInit" on page 27), the delay timer can be measured at CascOUT.

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4.2.2DCParameters
Parameter Symbol min max Unit
Input voltage LOW VIL 0 0.7 V
HIGH VIH 2.8 30 V
Output voltage LOW VOL - 1 V
HIGH VOH 2.8 - V
Output voltage LOW IOL -5 - mA
HIGH IOH 5 - mA
Table 11: DC Parameters

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5 INSTRUCTIONS FOR INSTALLATION
5.1 InstallingtheHardware
BeforeinstallationpleaseobservethesafetyprecautionsaccordingtoDINEN100015
whenhandlingESDcomponents(electrostaticdischarge)!
Connect the encoder and possibly available I/Os to the UFC 430 module. Before doing so
make sure that you have disconnected the UFC 430 module from the main supply,
since otherwise the encoders or the UFC 430 module may be damaged
Connect the UFC 430 module to a personal computer using a USB cable
Connect the UFC 430 module to the main supply via a wall power supply (12 VDC)
5.2 InstallingtheDrivers
WINDOWSXP/VISTA/7/8
After the booting procedure the operating system automatically detects the UFC430 module.
Now the appropriate drivers need to be installed.
Insert the CD labelled "UFC430 Driver" into your CD-ROM drive
Follow the instuctions on the screen
After the drivers were successfully installed, an entry is made to the registry and
thefollowinglesarecopiedtothesystemdirectory:
e.g. C:\WINdows\System32\Drivers\ UFC430.SYS
The enclosed disk contains also the DLLs.
The corresponding DLL should be included directly in the application.
5.3 InstallingtheenclosedDemonstrationSoftware
The demonstration program uses the previously installed drivers.
No software installation is required here. You can start the demonstration program
immediately from the CD-ROM or - after having copied it - from your computer hard disk.

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6 DLL FUNCTIONS
6.1 OverviewoftheDLLFunctions
6.1.1GeneralFunctions
Description Brief reference
Open device driver integer UFC_OpenDrv (void)
Close device driver integer UFC_CloseDrv (void)
Generate reset integer UFC_SetReset (unsigned char card)
Readoutrmwareversion
integer UFC_GetFirmwareVersion (unsigned char card,
unsigned char *major,
unsigned char *minor,
unsigned char *version,
unsigned char *revision)
Read out hardware version integer UFC_GetHardwareVersion (unsigned char card,
unsigned long *Version)
Read out serial number
(USB ID expansion)
integer UFC_GetSerialNumber (unsigned char card,
unsigned long *Number)
Read out external
supply voltage
integer UFC_GetVoltExtern (unsigned char card,
unsigned short *Volt)
Read out encoder
supply voltage
integer UFC_GetVoltEncoder (unsigned char card,
unsigned short *Volt)
Table 12: General functions
6.1.2FunctionsforCounterandEncoderMode
Description Brief reference
Write interpolation factor
integer UFC_SetInterpolMode (unsigned char module,
unsigned char axis,
unsigned char mode)
Read out interpolation factor
integer UFC_GetInterpolMode (unsigned char card,
unsigned char Axis,
unsigned char *Mode)
Write counting direction
integer UFC_SetDirectionMode (unsigned char card,
unsigned char Axis,
unsigned char Mode)
Read out counting direction
integer UFC_GetDirectionMode (unsigned char card,
unsigned char Axis,
unsigned char *Mode)
Initialize encoder switch limit
integer UFC_SetSwitchInit (unsigned char card,
unsigned char Axis,
unsigned char Init)
Read out encoder limit switch
initialization
integer UFC_GetSwitchInit (unsigned char card,
unsigned char Axis,
unsigned char *Init)
Table 13: Functions for counter and encoder mode

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6.1.3FunctionsforErrorMessagesandStatus
Description Brief reference
Clear error messages integer UFC_ClearError (unsigned char card,
unsigned char Clear)
Read out counter status
integer UFC_GetCounterStatus (unsigned char card,
unsigned char Axis,
unsigned short *Status)
Table 14: Functions for error messages and status
6.1.4FunctionsforloadandclearCounter
Description Brief reference
Write counter load and clear mode
integer UFC_SetLoadClearMode (unsigned char module,
unsigned char axis,
unsigned char mode)
Read out counter load and
clear mode
integer UFC_GetLoadClearMode (unsigned char card,
unsigned char Axis,
unsigned char *Mode)
Clear counter integer UFC_ClearCounter (unsigned char card,
unsigned char Clear)
Load contents of load register
to counter
integer UFC_LoadCounter (unsigned char card,
unsigned char Load)
Write load register
integer UFC_SetLoadReg (unsigned char card,
unsigned char Axis,
unsigned long Data)
Table 15: Functions for load and clear counter
6.1.5FunctionsforlatchingandreadingoutCountValues
Description Brief reference
Write latch register mode
integer UFC_SetLatchMode (unsigned char module,
unsigned char axis,
unsigned char reg,
unsigned char mode)
Read out latch register mode
integer UFC_GetLatchMode (unsigned char card,
unsigned char Axis,
unsigned char Reg,
unsigned char *Mode)
Generate latch pulse integer UFC_LatchImpuls (unsigned char card)
Copy count value to
latch register
integer UFC_LatchCounter (unsigned char card,
unsigned char Latch)
Read out latch register
integer UFC_GetLatchReg (unsigned char card,
unsigned char Axis,
unsigned char Reg,
unsigned long *Data)
Table 16: Functions for latching and reading out count values

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6.1.6Functionsforreferencing
Description Brief reference
Initialize reference mode
integer UFC_SetRefINit (unsigned char card,
unsigned char Axis,
unsigned char Init)
Read out reference mode
integer UFC_GetRefINit (unsigned char card,
unsigned char axis,
unsigned char *Init)
Enable reference pulse(s) integer UFC_ClearRef (unsigned char card,
unsigned char Clear)
Write to parameters for encoders
with distance-coded
referencemarks
integer UFC_RefPar (unsigned char card,
unsigned char Axis,
unsigned short RefDis,
unsigned short RefOffset,
long Ref1,
long Ref2,
long PosOffset,
long *EncOffset)
Read out count values in consider-
ation of the distance-coded
refernce mark
integer UFC_GetPosRef (unsigned char card,
unsigned char Axis,
unsigned long *Data)
Table 17: Functions for referencing
6.1.7FunctionsforexternalInputsandOutputs
Description Brief reference
Initialize mode of external
inputs/outputs (X4)
integer UFC_SetExtINit (unsigned char card,
unsigned short Init)
Read out mode of external
inputs/outputs (X4)
integer UFC_GetExtINit (unsigned char card,
unsigned short *Init)
Write external outputs (X4) integer UFC_SetExtOUT (unsigned char card,
unsigned char Out)
Read out external inputs (X4) integer UFC_GetExtIN (unsigned char card,
unsigned short *Input)
Table 18: Functions for external inputs and outputs
6.1.8FunctionsfortheTimer
Description Brief reference
Write timer value integer UFC_SetTimer (unsigned char card,
unsigned short Timer)
Read out timer value integer UFC_GetTimer (unsigned char card,
unsigned short *Timer)
Table 19: Functions for the timer

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6.2 ReferenceoftheDLLFunctions
The DLL uses the following data types:
unsigned char: 8 bits (no sign)
unsigned char *: Pointer to 8 bits (no sign)
unsigned short: 16 bits (no sign)
unsigned short *: Pointer to 16 bits (no sign)
integer: 16 bits (no sign)
unsigned long: 32 bits (no sign)
unsigned long *: Pointer to 32 bits (no sign)
Every function returns a 16-bit integer:
 return=(integer)
return = 0 aData transfer faulty or module time-out
return = 1 aData transfer successful
return = -1 aDriver not open
return = -2 aDriver still open but UFC430 module no longer connected
Up to 8 modules (cards 0-7) can be connected:
 card=(unsignedchar)
Each module features three counter inputs (axes 0–2).
 Axis=(unsignedchar)
6.2.1GeneralFunctions
 UFC_OpenDrv
Open device driver
 Prototype: return=UFC_OpenDrv(void);
return: 0 = Driver not found
1 = Driver opened
 UFC_CloseDrv
Close device driver
 Prototype: return=UFC_CloseDrv(void);
return: 1 = Driver closed
 UFC_SetReset
 Createsasoftwareresetinthespeciedmodule
 Prototype: return=UFC_SetReset(unsignedcharcard);
return: (-2…1)
card: Number of the module (0…7)

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 UFC_GetFirmwareVersion
 ProvidesthermwareversionoftheUFC430module
 Prototype: return=UFC_GetFirmwareVersion(unsignedcharcard,unsignedchar*major,
  unsignedchar*mINor,unsignedchar*version,unsignedchar*revision);
return: (-2…1)
card: Number of the module (0…7)
*major: Firmware major
*mINor: Firmware minor
*version: Firmware version
*revision Firmware revision
 UFC_GetHardwareVersion
Provides the hardware version of the UFC430 module
 Prototype: return=UFC_GetHardwareVersion(unsignedcharcard,unsignedlong*Version);
return: (-2…1)
card: Number fo the module (0…7)
*Version: Hardware version
 UFC_GetSerialNumber
Provides the serial numer of the UFC430 module (USB ID expansion)
 Prototype: return=UFC_GetSerialNumber(unsignedcharcard,unsignedlong*Number);
return: (-2…1)
card: Number of the module (0…7)
*Number: Serial number of the module
 UFC_GetVoltExtern
Provides the voltage (read out external power supply)
 Prototype: return=UFC_GetVoltExtern(unsignedcharcard,unsignedshort*Volt);
return: (-2…1)
card: Number of the module (0…7)
*Volt: Suppy voltage of the module [0.1 V]
 UFC_GetVoltEncoder
Provides the amplitude of the encoder supply voltage
 Prototype: return=UFC_GetVoltEncoder(unsignedcharcard,unsignedshort*Volt);
return: (-2…1)
card: Number of the module (0…7)
*Volt Encoder supply voltage [0.1 V]

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6.2.2FunctionsforCounterandEncoderMode
 UFC_SetInterpolMode
Write interpolation factor
 Prototype: return=UFC_SetInterpolMode(unsignedcharcard,unsignedcharAxis,
  unsignedcharMode);
return: (-2…1)
card: Number of the module (0…7)
Axis: Number of the axis (0…2)
Mode: Counter operating mode (0–11)
operating mode 0:
Counter input without phase dicriminator (event counter)
Track A = Counting-direction signal
Track B = Counter clock signal
Track R = Counter load or latch signal
operating mode 1–3:
Counter input with phase discriminiator (for encoders with TTL signals only)
1 = times1 evaluation
2 = times2 evaluation
3 = times4 evaluation
operating mode 4–11:
Counter input with phase disriminator
(only for encoders with 1 Vpp signals)
4 = times20 interpolation
5 = times25 interpolation
6 = times40 interpolation
7 = times50 interpolation
8 = times80 interpolation
9 = times100 interpolation
10 = times200 interpolation
11 = times400 interpolation
 UFC_GetInterpolMode
Read out interpolation factor
 Prototype: return=UFC_GetInterpolMode(unsignedcharcard,unsignedcharAxis,
  unsignedchar*Mode);
return: (-2…1)
card: Number of the module (0…7)
Axis: Number of the axis (0…2)
*Mode: Selected counter operating mode (0–11)

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 UFC_SetDirectionMode
Write counting direction
 Prototype: return=UFC_SetDirectionMode(unsignedcharcard,unsignedcharAxis,
  unsignedcharMode);
return: (-2…1)
card: Number of the module (0…7)
Axis: Number of the axis (0…2)
Mode: Counting direction
0 = normal
1 = inverted
 UFC_GetDirectionMode
Read out counting direction
 Prototype: return=UFC_GetDirectionMode(unsignedcharcard,unsignedcharAxis,
  unsignedchar*Mode);
return: (-2…1)
card: Number of the module (0…7)
Axis: Number of the axis (0…2)
*Mode: Selected counting direction
 UFC_SetSwitchInit
Initialization of the encoder limit switches
 Prototype: return=UFC_SetSwitchInit(unsignedcharcard,unsignedcharAxis,unsignedcharINit);
return: (-2…1)
card: Number of the module (0…7)
Axis: Number of the axis (0…2)
INit: 0 aEncoder limit switch LO-active
1 aEncoder limit switch HI-active
 UFC_GetSwitchInit
Read out initialization of the encoder limit switches
 Prototype: return=UFC_GetSwitchInit(unsignedcharcard,unsignedcharAxis,unsignedchar*Init);
return: (-2…1)
card: Number of the module (0…7)
Axis: Number of the axis (0…2)
*Init: Setting of encoder limit switch (0 or 1)