Delta Tau PMAC2A-PC/104 CPU Jumper Configuration, Communication Jumpers, Configuration Jumpers

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PMAC2A PC104 Hardware Reference Manual

CPU Jumper Configuration

E15A-E15C: Flash Memory Bank Select Jumpers – The flash-memory IC in location U10 on the PMAC2A PC/104 base board has the capacity for eight separate banks of firmware, only one of which can be used at any given time. The eight combinations of settings for jumpers E15A, E15B, and E15C select which bank of the flash memory is used. In the factory production process, firmware is loaded only into Bank 0, which is selected by having all of these jumpers OFF.

E10-E12:Power-Up State Jumpers – Jumper E10 must be OFF, jumper E11 must be ON, and jumper E12 must be ON, in order for the CPU to copy the firmware from flash memory into active RAM on power- up/reset. This is necessary for normal operation of the card. (Other settings are for factory use only.)

E14: Watchdog Timer Jumper – Jumper E14 must be OFF for the watchdog timer to operate. This is a very important safety feature, so it is vital that this jumper be OFF in normal operation. E14 should only be put ON to debug problems with the watchdog timer circuit.

W1: Flash chip select – Jumper W1 in position 1-2 selects a 28F320J3A part for the U10 flash chip. Jumper W1 in position 2-3 selects a 28F320J5A part for the U10 flash chip. This jumper is installed in the factory and must not be changed from its default state.

Communication Jumpers

E18-E19: PC/104 Bus Base Address Control – Jumpers E18 and E19 on the PMAC2A PC/104 baseboard determine the base address of the card in the I/O space of the host PC’s bus. Together, they specify four consecutive addresses on the bus where the card can be found. The jumpers form the base address in the following fashion:

E18

E19

Address (hex)

Address (dec)

OFF

OFF

$200

512

OFF

ON

$210

528

ON

OFF

$220

544

ON

ON

$230

560

The default base address is 528 ($210) formed with jumper E18 removed and E19 installed. This configuration is necessary for using the USB or Ethernet ports of the Acc-2P communications board.

I/O Configuration Jumpers

E16: ADC Enable Jumper – Install E16 to enable the analog-to-digital converter circuitry ordered through Option-12. Remove this jumper to disable this option, which might be necessary to control motor 1 through a digital amplifier with current feedback.

Resistor Packs Configuration

Differential or Single-Ended Encoder Selection

The differential input signal pairs to the PMAC have user-configurable pull-up/pull-down resistor networks to permit the acceptance of either single-ended or differential signals in one setting, or the detection of lost differential signals in another setting.

The ‘+’ inputs of each differential pair each have a hard-wired 1 kΩ pull-up resistor to +5V. This cannot be changed.

The ‘-‘ inputs of each differential pair each have a hard-wired 2.2 kΩ resistor to +5V; each also has another 2.2 kΩ resistor as part of a socketed resistor pack that can be configured as a pull-up resistor to +5V, or a pull-down resistor to GND.

If this socketed resistor is configured as a pull-down resistor (the default configuration), the combination of pull-up and pull-down resistors on this line acts as a voltage divider, holding the line at +2.5V in the absence of an external signal. This configuration is required for single-ended inputs using the ‘+’ lines alone; it is desirable for unconnected inputs to prevent the pick-up of spurious noise; it is permissible for differential line-driver inputs.

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Baseboard Hardware Setup

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Contents PMAC2A-PC/104 Copyright Information Delta Tau Data Systems, Inc. Technical SupportTable of Contents Software Setup Base Board Connector Pinouts PMAC2A PC104 Hardware Reference Manual Table of Contents Board Configuration IntroductionOption 12 Analog-to-Digital Converters Acc-1P Axis Expansion Piggyback BoardAcc-1P Option 1 I/O Ports Acc-1P Option 2 Analog-to-Digital ConvertersAcc-2P Communications Board Acc-2P Option 1A USB InterfaceAcc-2P Option 1B Ethernet Interface Acc-2P Option 2 Dpram CircuitryPMAC2A PC104 Hardware Reference Manual Introduction Base Board Hardware Setup Clock Configuration JumpersBoard Reset Jumpers CPU Jumper Configuration Configuration JumpersResistor Packs Configuration Communication JumpersDevice Resistor Pack Pack Size PMAC2A PC104 Hardware Reference Manual ACC-1P Hardware Setup Reserved Configuration JumpersE0 Reserved for future use Handwheel Encoder Termination Resistors ACC-2P Hardware Setup Jthw Connector DATx SELxJopt Connector E10 MOx MIx Lines Differential or Single-Ended Handwheel Encoder Selection Power Supplies Digital Power SupplyDAC Outputs Power Supply Machine ConnectionsOvertravel Limits and Home Switches Motor Signals ConnectionsDAC Output Signals Amplifier Enable Signal AENAx/DIRnPulse and Direction Stepper Drivers ExampleAmplifier Fault Signal Fault Acc-1P General-Purpose Digital Inputs and Outputs J7 PortAcc-2P General-Purpose Digital Inputs and Outputs Jopt Port Acc-1P Thumbwheel Multiplexer Port J2 PortAcc-2P Thumbwheel Multiplexer Port Jthw Port Acc-1P or Acc-2P Handwheel Port JHW / PD Port Optional Analog InputsCompare Equal Outputs Acc-2P Ethernet RJ45 Connector J10 Port Acc-2P USB Connector J1 PortSerial Port JRS232 Port PC DB-9Machine Connections Example Using Analog ±10V Amplifier PMAC2A PC104 Hardware Reference Manual PMAC2A PC104 Hardware Reference Manual Machine Connections Software Setup Operational Frequency and Baud Rate SetupCommunications Pmac I-VariablesFiltered DAC Outputs Configuration I54 Baud RateI54 Baud Rate for Using Flag I/O as General-Purpose I/O General-Purpose Digital Inputs and OutputsAcc-1P with Jumper E6 on Position Flag Type Channel NumberAcc-2P with Jumper E5 in Position Open PLC1 ClearThumbwheel Port Digital Inputs and Outputs Acc-1P with Jumper E6 in PositionAnalog Inputs Setup Baseboard Analog InputsAcc-1P Analog Inputs Board Dimensions Base Board Hardware Reference SummaryFeature Feature LocationBoard Layout Connectors and Indicators Page ACC-1P Hardware Reference Summary TB1 JMACH1 J2 Thumbwheel Multiplexer Port Jthw Port J7 General-Purpose Digital Inputs and Outputs Jopt PortJ8 Handwheel / Pulse and Direction Port JHW / PD Port Page ACC-2P Hardware Reference Summary TB1 Jthw Jopt J1 USB Communications Port J8 Handwheel/Pulse and Direction Port JHW / PD PortJ10 Ethernet Communications Port Page E0 Forced Reset Control E1 Servo and Phase Clock Direction ControlE3 Normal/Re-Initializing Power-Up/Reset Base Board E-POINT Jumper DescriptionsE8 Phase Clock Lines Output Enable E9 Servo Clock Lines Output EnableE10 E12 Power-Up State Jumpers Description DefaultE13 Power-Up/Reset Load Source E14 Watchdog Disable JumperE16 ADC Inputs Enable E15A, B, C Flash Memory Bank SelectPoint and Physical Location Description Default Layout E18 E19 PC/104 Bus AddressE1 E2 Machine Output Supply Voltage Configure ACC-1P E-POINT Jumper DescriptionsE0 Reserved for Future Use E3 E4 JHW, PD Function SelectE5 Servo Gate Address Select E6 I/O Gate Address SelectE7 Machine Input Source/Sink Control E1 USB/Ethernet Micro-Controller Firmware Reload Enable ACC-2P E-POINT Jumper DescriptionsE5 I/O Gate Address Select E6 Communications Port SelectPoint and Physical Location Description Default E7- E10 Ports Direction ControlBase Board Connector Pinouts TB1 Jpwr Power SupplyJ4 JRS232 Serial Port Connector Pin# Symbol Function DescriptionJ3 JMACH1 Machine Port Connector J3 JMACH1 50-Pin Header J4 JMACH2 Machine Port Baseboard Connector ACC-1P Connector Pinouts J2 Jthw Multiplexer Port Connector Pin# SymbolJ3 JMACH1 Machine Port Connector Pin Header J3 JMACH1 50-Pin-Header Connector 34-Pin Header FLG78VJ7 Jopto I/O Port Connector J8 JHW Handwheel Encoder Connector Page ACC-2P Connector Pinouts Pin # Symbol FunctionJ1 USB Universal Serial Bus Port Optional Pin Connector J7 Jopt I/O Port Connector J10 Ethernet Port Optional Pin # Function
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