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PI-5800/PI-2000 Software Compatibilities
The PI-2000 can be used as a direct replacement for the PI-5800.This document covers the PI-5800 commands supported by the PI-2000 and the additional commands required over the IEEE-488 interface when Pulse Instruments' PI-PAT software is not being used. All commands described in this document can be sent to the PI-2000 in lower case or ALL CAPITAL letters. Spaces are ignored. All commands sent to the PI-2000 must be terminated with a carriage return and line feed. All information sent back to your controller will be terminated similarly. So, the typical command structure will be: RUN\r\n
PI-5800A Commands Supported
| Command Line | Function |
|---|---|
| CLEAR extension |
Clears memory and resets data generator. Extension defines SP, INST, CHANNEL, FORMAT. No extension clears all |
| DEFINE SP x(y-z) | Sets up Subpattern x starting at bit position y and being z bits long |
| LOAD CHANNEL x | Selects channel (x) that will be loaded with data. |
| GOTO x |
Points at bit x position to begin loading data. Position can be defined as START or END of subpattern or CHANNEL number. |
| (binary data) * x | Loads data defined in parenthesis x times in the channel and bit location selected. |
| x BEGIN y | Instruction Line (x) and establishes reference number (y) for the program. |
| x SP y * z | Instruction Line x Subpattern y to repeat z times |
| x REPEAT y * z | Instruction Line x repeat line y through (x-1)z times |
| COMPILE x | compiles/loads program x to run. |
| UPDATE | Sends data into pattern memory. |
| RUN | Runs pattern continuously. |
| PERIOD x units | Sets the internal clock period to x NS, US, or MS |
| CHANNEL x format | Sets format of channel x to INVERT, NONINV, RZ OR NRZ |
New PI-2000 GPIB Commands
| Command Line | Function |
|---|---|
| POWERDOWN | This command shuts down the operating system to prepare the PI-2000 to be powered down. |
| RUNMODE | Request the run mode condition. Responses are: "Stopped", "Running", "Paused", "WaitSeq", "WaitStep", "WaitPause", "WaitStop", "WaitRun". |
| CLKINT | Selects internal clock |
| CLKEXTTTL | Selects external clock with TTL thresholds |
| CLKEXTECL | Selects external clock with ECL thresholds |
| STASTP x | Enables/Disables Start/Stop from rear panel. 0=disabled, 6=enabled |
| SEQUENCE | Runs through the instruction set once from the beginning or from the point the instruction set was paused. |
| PAUSE | Stops the instruction set at the end of the line being executed. |
| STEP x | Step through x subpattern of the instruction sequence |
The following are commands that are interpreted slightly differently in the PI-2000.
| Command Line | Difference |
|---|---|
| RUN x | The PI-2000 requires a variable after the RUN to indicate Run From Start (0) or Run From Paused(1). |
| STOP | The PI-2000 resets to the first instruction line. This would replace the STOP followed by COMPILE x commands in the PI-5800. |
| PAUSE | This PI-2000 command is equivalent to the PI-5800 STOP command. This will stop at the end of an instruction line. The command to restart from this instruction line is RUN 1. |