PMAC Product Guide Programming PMAC Buffered commands for Motion programs or PLC programs are entered in any text file and then downloaded to PMAC with the EZ-PMAC Setup Software or equivalent software. With online commands, immediately jog motors, change variables, report variables values, start and stop programs, query for status information and even write short motion and PLC programs from the terminal window. Once loaded, each enabled PLC program will run automatically on power-up provided that the I5 I- variable has been properly set. Motion programs can be started from the terminal window by typing the B1R command or can be started automatically on power-up from a PLC program. Note:
Type SAVE in the terminal window to keep any changes that made to PMAC’s memory. The EZ-PMAC Setup Software gives a reminder to save the PMAC parameters on each exit. Universal PMAC Lite Connectors and Indicators J1 - Display Port Outputs (JDISP Port) The JDISP connector connects the PMAC to the ACC-12 or ACC-12A liquid crystal displays or the ACC-12C vacuum fluorescent display. Both text and variable values may be shown on these displays through the use of the DISPLAY command, executing in either motion or PLC programs. J2 - Control-Panel Port I/O (JPAN Port) This connector is considered an advanced feature and it is not used on a standard application.
J3 - Thumbwheel Multiplexer Port I/O (JTHW Port) The Thumbwheel Multiplexer Port, or Multiplexer Port, on the JTHW connector has eight input lines and eight output lines. The output lines can be used to multiplex large numbers of inputs and outputs on the port and Delta Tau provides accessory boards and software structures (special M-Variable definitions) to capitalize on this feature. Up to 32 of the multiplexed I/O boards may be daisy-chained on the port, in any combination. J4 – RS-232 Serial Port Connection (JRS232 Port) Both RS-232 and RS-422 ports are always provided, and jumpers must be set correctly to use the port of choice.
Jumpers E107 and E108 must connect pins 1 and 2 to use the RS-232 port on the J4 connector. J4 and J4A cannot be used at the same time. J4A – RS-422 Serial Port Connection (JRS422 Port) Both RS-232 and RS-422 ports are always provided and jumpers must be set correctly to use the port of your choice. Jumpers E107 and E108 must connect pins 2 and 3 to use the RS-422 port on the J4A connector. J4 and J4A cannot be used at the same time. J5 - General-Purpose Digital Inputs and Outputs (JOPTO Port) PMAC’s JOPTO connector provides eight general-purpose digital inputs and eight general-purpose digital outputs. Each input and each output has its own corresponding ground pin in the opposite row.
The 34-pin connector was designed for easy interface to OPTO-22 or equivalent optically isolated I/O modules. Delta Tau’s ACC-21F is a six-foot cable used for this purpose. Introduction 3