User manual FLUKE PPCK PLUS

[. . . ] PPCK+TM High Pressure Controller/Calibrator Operation and Maintenance Manual ©2001 DH Instruments, Inc. PPCK+TM Operation and Maintenance Manual High pressure liquids and gases are potentially hazardous. Energy stored in these liquids and gases can be released unexpectedly and with extreme force. High pressure systems should be assembled and operated only by personnel who have been instructed in proper safety practices. © 2000-2001 DH Instruments, Inc. Information in this document is subject to change without notice. [. . . ] This pin accepts serial data from the host computer. This pin is the common return for the TxD and RxD signals. IBM PC/XT DB-9M TO PPCK+ DB9F CONNECTION DB-9M DB-9F 3 2 5 3 2 5 IBM PC/XT DB-9F CONNECTIONS DB-25M DB-9F 2 3 7 3 2 5 4. 2. 1. 2 IEEE-488 The PPCK+ IEEE-488 interface is located on the back of the unit. The physical and electrical interface conforms to IEEE Std 488. 1-1987 Subset E2 and IEEE Std. You should not attempt to communicate with the IEEE-488 interface while using the COM1 interface. The IEEE-488 receive buffer is 250 bytes deep. If you attempt to overflow the buffer, the PPCK+ will hold off release of the NRFD handshake line until it can service and empty the receive buffer. This keeps the buffer from overflowing. 4. 2. 1. 3 COM2 The PPCK+ COM2 RS232 interface is located on the back of the unit. It can be used to allow the Host computer to communicate with another device through the PPCK+. This allows the user to use one Host COM port to communicate with the PPCK+ and an additional RS232 device. Refer to the "PASSTHRU" remote program message for details. COM2 is a 9-pin male DB-9M connector configured as a DTE device. Data is transmitted out of the unit using pin 3, and is received on pin 2. This allows a normal pin-to-pin DB-9M to DB-9F RS232 cable to be used to connect to a DCE device. Handshaking is not required or supported. List of PPCK+ COM2 DB-9M Pin Designations PIN # 3 2 5 4 FUNCTION TxD RxD Grn DTR DESCRIPTION This pin transmits serial data from the PPCK+ to a device. This pin accepts serial data from the external device. This pin is the common return for the TxD and RxD signals. This pin is Data Terminal Ready (DTR) (held at +5 V). ©2001 DH Instruments, Inc. Page 70 PPCK+TM Operation and Maintenance Manual 4. 3 PROGRAMMING FORMATS The PPCK+ program message set is downward compatible with the previous PPCK program message set. It is identical to the PPC2+ program message set with the exception of a few commands that are not included for PPCK+ because they support PPC2+ functions that PPCK+ does not include. This message set includes an enhanced program message format to support IEEE Std 488. 2 syntax, format, and status reporting. The user must select whether to use either the original "classic" program message format, or the new "enhanced" program message format. [. . . ] The stability limit is used as the Ready/Not Ready criterion. Not Ready if stability limit is exceeded. Control mode in which the pressure is set near the target value and then shut OFF and allowed to evolve freely. The value to which automated pressure control attempts to set and maintain the pressure. [. . . ]