AMS DCB-274 manual Default Table, Turbo Ram

Page 38

ADVANCED MICRO SYSTEMS, INC.

SMC-27X2 SOFTWARE

Default Table

The following default values are written to NV memory after the ‘Clear’(C 1) command:

Parameter

Value

 

 

Initial Velocity (I)

800 SPS

Slew Velocity (V)

10,000 SPS

Divide Factor (D)

1

Ramp Slope (K)

5

Decay threshold (b)

30

Jog Speeds (B)

90/600

Trip Point (T)

Off

Mode (H)

1/4 micro step

PLC(l)

Off (invert all inputs)

Limit Polarity (l)

Low assert

Auto Position Readout (Z)

Off

Name (after reset)

Unchanged

User Programs (0-191)

Cleared

Turbo Ram

The SMC-27X2 has a small, dedicated memory area called Turbo Ram. There are 64 bytes, which reside between address location 128 and 192. Instructions written here during program mode use “real” internal RAM rather than EEPROM in order to achieve these advantages:

1.Very fast execution. EEPROM access time is 1 Ms. or more per byte.

2.No wear and tear on the EEPROM.

3.The trip service routine executes at address 160.

Macros may be downloaded directly into this area and executed as frequently as desired. Programs in this area are stored in corresponding NV memory and “down -loaded” at power up, making an effective shadow RAM.

Command behavior between address locations128 and 192

Q:List from RAM

P:Program to RAM

S:Copy to EEPROM ]: Write to EEPROM \: Read from EEPROM

C1: Clear EEPROM, reload register

3 2

Page 37 Page 39
Image 38
Page 37 Page 39
Contents Nashua, NH Page Revision Date 07/05/06 Page Advanced Micro SYSTEMS, INC Addenum Introduction Limitations or Exceptions for the DCB-274Features Product OverviewRequired Hardware for Operation SIN-8Out of the Box Quick Start Dual Ammeter Circuit After Sign-onConnect the Motor Serial Interface J2, J3 Advanced Micro SYSTEMS, INC Hardware Connections J1, J4Standard Mode- Sinking Inputs Pin 7 VIO Reference InputInput Ports PLC Mode- Sourcing InputsTypical User Input Circuit Output PortsTypical Output Circuit Encoder Input Option J1Port Encoder Inputs J1 Power Supply and Motor Connection J5Step and Direction Inputs J1 Typical Wiring Diagrams for Step Motors Baud Rate Jumpers B1, B2Environmental SpecificationsElectrical PhysicalPhysical Dimensions RS-232 OverviewRS-232 Hardware RS-422Single axis, RS-232 connection using AMS SIN-7 adapter RS-232 Daisy Chain connectionParty Line Connect Cable SpecificationsRS-422 Party Line Hardware RS-422 Party LineSIN-8, RS-232 to RS-422 converter SIN-8 Serial AdapterRS-422/485 BUS-drop SIN-10, intelligent serial line converter Other Party Line SignalsSIN-10 Intelligent Serial Adapter Serial Communications Overview Party Line ModeDaisy Chain Mode not recommended for more than 1 axis Serial Communications SoftwareEasi Software Serial Interface Using EasiBaud Rate Sign-OnExamine Command Axis Name Assignment Simple Command ExamplesDaisy Chain Start-Up Execute the Program NV Memory ProgrammingVerify the Program Some Rules Party Line and Daisy Chain Line CommandsEdit Program Command Example Party Line StartupAnatomy of Instruction Execution Interrupt Commands Command Cycle Examples Advanced Micro SYSTEMS, INC Serial Interface Advanced Micro SYSTEMS, INC Serial Interface Non-Volatile Memory Details Memory MapDefault Table Turbo Ram@ Soft Stop Command Format DescriptionESC Global Abort Inputs ResetPort Read/Write OutputsProgramming Example Set Jog Speeds Lower case B Fast and Slow DecayClear and Restore NV Memory Divide SpeedsFind Home Normally Open Home SwitchNormally Closed Home Switch Special case Go Step Resolution Initial VelocityRamp Slope Lower case I Restart Special TripJump to Address a, n+1 times Lower case K Trip Output Value Advanced Micro SYSTEMS, INC SMC-27X2 Software Flags and Numbers Loop on PortLower case L Option Flags Make Step and Direction Outputs Flag PLC Mode FlagLimit Polarity Flag Moving Output FlagGentle Limit Flag Move at a Constant VelocityPort 4 Input Flag Program Mode Set OriginIndex Relative to Origin Save Trip PointSet Slew Speed Wait Lower case W Pre-energizeExamine Hold and Run CurrentRead Position Read NV Memory Read Limits, Hardware+ Index in Plus Direction Index in Minus DirectionRead Moving Status \ Write to NV MemorySelective Termination Name AxisParty Line Mode AMS SIN-11 Serial AdapterCommand Summary Advanced Micro SYSTEMS, INC AddendumAscii Character Code Ctrl Char Dec Hex CodeStep Motor Characteristics About Step Motor CurrentMotor Choice Determining the Current ValueAmps and Wire Count and Power Basic 8 Wire MotorWire Motor Application Notes V1.10 Double Speed Characteristics Decay ControlSerial Adapter Summary
Top Page Image Contents